1 tbd Cluster File Systems, Inc. <info@clusterfs.com>
6 2.6.16.46-0.14 (SLES 10),
7 2.6.18.8 vanilla (kernel.org)
8 * Client support for unpatched kernels:
9 (see http://wiki.lustre.org/index.php?title=Patchless_Client)
10 2.6.9-42.0.10.EL (RHEL 4),
11 2.6.16 - 2.6.21 vanilla (kernel.org)
12 * Recommended e2fsprogs version: 1.40.2-cfs1
13 * Note that reiserfs quotas are disabled on SLES 10 in this kernel.
17 Description: don't use GFP_* in generic Lustre code.
18 Details : Use cfs_alloc_* functions and CFS_* flags for code portability.
22 Description: obdclass is limited by single OBD_ALLOC(idarray)
23 Details : replace OBD_ALLOC/OBD_FREE with OBD_VMALLOC/OBD_VFREE
27 Description: warnings with build patchless client with vanila 2.6.19 and up
28 Details : change old ctl_table style and replace ctl_table/ctl_table_header
29 with cfs_sysctl_table_t/cfs_sysctl_table_header_t
33 Frequency : Only for SLES
34 Description: sanity_quota fail test_1
35 Details : There are multiple occurences of $TSTUSR in SLES's /etc/group
36 file, which makes TSTID[2] inunique.
40 Frequency : Only for SLES9
41 Description: Kernel patches for SLES9 2.6.5-7.286 kernel
42 Details : Update target/ChangeLog/which_patch .
46 Frequency : Only for test_10 in sanity-quota.sh
47 Description: a bug in quota test code
48 Details : checking a test flag in a wrong place
52 Frequency : Only for test_13 in sanity-quota.sh
53 Description: a bug in quota test script
54 Details : shouldn't check overfull allocated quota
58 Description: jbd statistics
59 Details : Port older jbd statistics patch for sles10
61 Severity : enhancement
63 Description: Add printing inode info into message about error in writepage.
68 Description: reply_lock_interpret crash due to race with it and lock cancel.
69 Details : Do not replay locks that are being cancelled. Do not reference
70 locks by their address during replay, just by their handle.
74 Frequency : When flocks are used.
75 Description: assertion failure in ldlm_cli_enquque_fini for non NULL lock.
76 Details : Flock locks might destroy just granted lock if it could be merged
77 with another existing flock, this is done in completion handler,
78 so teach ldlm_cli_enquque_fini that this is a valid case for
84 Description: Oops in read and write path when failing to allocate lock.
85 Details : Check if lock allocation failed and return error back.
89 Description: lstripe command fails for valid OST index
90 Details : The stripe offset is compared to lov->desc.ld_tgt_count
91 instead of lov->desc.ld_active_tgt_count.
95 Description: sanity.sh failed test 103
96 Details : RHEL mis-interpret setfacl "-X" param, so we won't test setfacl
101 Description: df doesn't work properly if diskfs blocksize != 4K
102 Details : Choose biggest blocksize of OST's as the LOV's blocksize.
106 Description: lfs find on -1 stripe looping in lsm_lmm_verify_common()
107 Details : Avoid lov_verify_lmm_common() on directory with -1 stripe count.
111 Description: obd_health_check_timeout too short
112 Details : set obd_health_check_timeout as 1.5x of obd_timeout
116 Description: llapi_file_create() does not allow some changes
117 Details : add llapi_file_open() that allows specifying the mode and
118 open flags, and also returns an open file handle.
122 Description: merge and cleanup kernel patches.
123 Details : Remove mnt_lustre_list in vfs_intent-2.6-rhel4.patch.
127 Description: Add journal checksum support.(Kernel part)
128 Details : The journal checksum feature adds two new flags i.e
129 JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT and
130 JBD2_FEATURE_COMPAT_CHECKSUM. JBD2_FEATURE_CHECKSUM flag
131 indicates that the commit block contains the checksum for
132 the blocks described by the descriptor blocks. Now commit
133 record can be sent to disk without waiting for descriptor
134 blocks to be written to disk. This behavior is controlled
135 using JBD2_FEATURE_ASYNC_COMMIT flag.
139 Description: OSS needs mutliple precreate threads
140 Details : Add ability to start more than one create thread per OSS.
144 Description: Sanity.sh test_65k failed: setstripe should have succeeded
145 Details : execute lfs setstripe on client
147 --------------------------------------------------------------------------------
149 2007-08-10 Cluster File Systems, Inc. <info@clusterfs.com>
151 * Support for kernels:
152 2.6.5-7.283 (SLES 9),
153 2.6.9-55.EL (RHEL 4),
154 2.6.16.46-0.14 (SLES 10),
155 2.6.18.8 vanilla (kernel.org)
156 * Client support for unpatched kernels:
157 (see http://wiki.lustre.org/index.php?title=Patchless_Client)
158 2.6.16 - 2.6.22 vanilla (kernel.org)
159 * Due to recently discovered recovery problems, we do not recommend
160 using patchless RHEL 4 clients with this or any earlier release.
161 * Recommended e2fsprogs version: 1.39.cfs8
162 * Note that reiserfs quotas are disabled on SLES 10 in this kernel.
163 * Starting with this release, the ldiskfs backing filesystem required
164 by Lustre is now in its own package, lustre-ldiskfs. This package
165 should be installed. It is versioned separately from Lustre and
166 may be released separately in future.
170 Description: block reactivating mgc import until all deactivates complete
171 Details : Fix race when failing back MDT/MGS to itself (testing)
173 Severity : enhancement
175 Description: add optional extra BUILD_VERSION info
176 Details : add a new environment variable (namely LUSTRE_VERS) which allows
177 to override the lustre version.
180 Frequency : 2.6.18 servers only
182 Description: ll_kern_mount() doesn't release the module reference
183 Details : The ldiskfs module reference count never drops down to 0
184 because ll_kern_mount() doesn't release the module reference.
189 Description: server LBUG when using old ost_num_threads parameter
190 Details : Accept the old ost_num_threads parameter but warn that it
191 is deprecated, and fix an off-by-one error that caused an LBUG.
196 Description: Transient SCSI error results in persistent IO issue
197 Details : iobuf->dr_error is not reinitialized to 0 between two
201 Frequency : sometimes when underlying device returns I/O errors
203 Description: OSTs not going read-only during write failures
204 Details : OSTs are not remounted read-only when the journal commit threads
205 get I/O errors because fsfilt_ext3 calls journal_start/stop()
206 instead of the ext3 wrappers.
210 Description: poor connect scaling with increasing client count
211 Details : Don't run filter_grant_sanity_check for more than 100 exports
212 to improve scaling for large numbers of clients.
215 Frequency : SLES10 only
217 Description: sanity-quota.sh quotacheck failed: rc = -22
218 Details : Quotas cannot be enabled on SLES10.
221 Frequency : liblustre clients only
223 Description: getdirentries does not give error when run on compute nodes
224 Details : getdirentries does not fail when the size specified as an argument
225 is too small to contain at least one entry
227 Severity : enhancement
229 Description: Add LNET router traceability for debug purposes
230 Details : If a checksum failure occurs with a router as part of the
231 IO path, the NID of the last router that forwarded the bulk data
232 is printed so it can be identified.
237 Description: OST "spontaneously" evicts client; client has imp_pingable == 0
238 Details : Due to a race condition, liblustre clients were occasionally
241 Severity : enhancement
243 Description: lfs setstripe use optional parameters instead of postional
246 Severity : enhancement
248 Description: Nanosecond timestamp support for ldiskfs
249 Details : The on-disk ldiskfs filesystem has added support for nanosecond
250 resolution timestamps. There is not yet support for this at
251 the Lustre filesystem level.
254 Frequency : during server recovery
256 Description: MDS failing to send precreate requests due to OSCC_FLAG_RECOVERING
257 Details : request with rq_no_resend flag not awake l_wait_event if they get a
261 Frequency : nfs export on patchless client
263 Description: connectathon hang when test nfs export over patchless client
264 Details : Disconnected dentry cannot be found with lookup, so we do not need
265 to unhash it or make it invalid
268 Description: fix llapi_lov_get_uuids() to allow many OSTs to be returned
269 Details: : Change llapi_lov_get_uuids() to read the UUIDs from /proc instead
270 of using an ioctl. This allows lfsck for > 160 OSTs to succeed.
275 Description: open req refcounting wrong on reconnect
276 Details : If reconnect happened between getting open reply from server and
277 call to mdc_set_replay_data in ll_file_open, we will schedule
278 replay for unreferenced request that we are about to free.
279 Subsequent close will crash in variety of ways.
280 Check that request is still eligible for replay in
281 mdc_set_replay_data().
286 Description: disable writes to filesystem when reading health_check file
287 Details : the default for reading the health_check proc file has changed
288 to NOT do a journal transaction and write to disk, because this
289 can cause reads of the /proc file to hang and block HA state
290 checking on a healthy but otherwise heavily loaded system. It
291 is possible to return to the previous behaviour during configure
292 with --enable-health-write.
294 Severity : enhancement
296 Description: 64-bit inode version
297 Details: : Add a on-disk 64-bit inode version for ext3 to track changes made
298 to the inode. This will be required for version-based recovery.
303 Description: MDS fails to start if a duplicate client export is detected
304 Details : in some rare cases it was possible for a client to connect to
305 an MDS multiple times. Upon recovery the MDS would detect this
306 and fail during startup. Handle this more gracefully.
308 Severity : enhancement
310 Description: Add -o localflock option to simulate old noflock
312 Details : This will achieve local-only flock/fcntl locks
318 Description: log_commit_thread vs filter_destroy race leads to crash
319 Details : Take import reference before releasing llog record semaphore
324 Description: Wrong request locking in request set processing
325 Details : ptlrpc_check_set wrongly uses req->rq_lock for proctect add to
326 imp_delayed_list, in this place should be used imp_lock.
329 Frequency : when reconnection
331 Description: Grant Leak when osc reconnect to OST
332 Details : When osc reconnect ost, OST(filter) should check whether it
333 should grant more space to client by comparing fed_grant and
334 cl_avail_grant, and return the granted space to client instead
335 of "new granted" space, because client will call osc_init_grant
336 to update the client grant space info.
339 Frequency : when client reconnect to OST
341 Description: Grant Leak when osc do resend and replay bulk write
342 Details : When osc reconnect to OST, OST(filter)should clear grant info of
343 bulk write request, because the grant info while be sync between
344 OSC and OST when reconnect, and we should ignore the grant info
345 these of resend/replay write req.
350 Description: Grant space more than avaiable left space sometimes.
351 Details : When then OST is about to be full, if two bulk writing from
352 different clients came to OST. Accord the avaliable space of the
353 OST, the first req should be permitted, and the second one
354 should be denied by ENOSPC. But if the seconde arrived before
355 the first one is commited. The OST might wrongly permit second
356 writing, which will cause grant space > avaiable space.
359 Frequency : when client is evicted
361 Description: Grant might be wrongly erased when osc is evicted by OST
362 Details : when the import is evicted by server, it will fork another
363 thread ptlrpc_invalidate_import_thread to invalidate the
364 import, where the grant will be set to 0. While the original
365 thread will update the grant it got when connecting. So if
366 the former happened latter, the grant will be wrongly errased
367 because of this race.
372 Description: Checking Stale with correct fid
373 Details : ll_revalidate_it should uses de_inode instead of op_data.fid2
374 to check whether it is stale, because sometimes, we want the
375 enqueue happened anyway, and op_data.fid2 will not be initialized.
377 Severity : enhancement
379 Description: update patchless client
380 Details : Add support for patchless client with 2.6.20, 2.6.21 and RHEL 5
383 Frequency : only with 2.4 kernel
385 Description: random memory corruption
386 Details : size of struct ll_inode_info is to big for union inode.u and this
387 can be cause of random memory corruption.
392 Description: Memory leak in recovery
393 Details : Lov_mds_md was not free in an error handler in mds_create_object.
394 It should also check obd_fail before fsfilt_start, otherwise if
395 fsfilt_start return -EROFS,(failover mds during mds recovery).
396 then the req will return with repmsg->transno = 0 and rc = EROFS.
397 and we met hit the assert LASSERT(req->rq_reqmsg->transno ==
398 req->rq_repmsg->transno) in ptlrpc_replay_interpret. Fcc should
399 be freed no matter whether fsfilt_commit success or not.
402 Frequency : only with huge count clients
404 Description: Prevents from taking the superblock lock in llap_from_page for
406 Details : using LL_ORIGIN_REMOVEPAGE origin flag instead of LL_ORIGIN_UNKNOW
407 for llap_from_page call in ll_removepage prevents from taking the
408 superblock lock for a soon died page.
413 Description: Not check open intent error before release open handle
414 Details : in some rare cases, the open intent error is not checked before
415 release open handle, which may cause
416 ASSERTION(open_req->rq_transno != 0), because it tries to release
417 the failed open handle.
422 Description: Set cat log bitmap only after create log success.
423 Details : in some rare cases, the cat log bitmap is set too early. and it
424 should be set only after create log success.
428 Description: Accessing a block bevice can re-enable I/O when Lustre is
429 tearing down a device.
430 Details : dev_clear_rdonly(bdev) must be called in kill_bdev() instead of
435 Description: service threads may hog cpus when there are a lot of requests
437 Details : Insert cond_resched to give other threads a chance to use some of
443 Description: the cat log was not initialized in recovery
444 Details : When mds(mgs) do recovery, the tgt_count might be zero, so the
445 unlink log on mds will not be initialized until mds post
446 recovery. And also in mds post recovery, the unlink log will
447 initialization will be done asynchronausly, so there will be race
448 between add unlink log and unlink log initialization.
452 Description: brw_stats were being printed incorrectly
453 Details : brw_stats were being printed as log2 but all of them were not
454 recorded as log2. Also remove some code duplication arising from
455 filter_tally_{read,write}.
459 Frequency : rare, only in recovery.
460 Description: ASSERTION(req->rq_type != LI_POISON) failed
461 Details : imp_lock should be held while iterating over imp_sending_list for
462 prevent destroy request after get timeout in ptlrpc_queue_wait.
466 Description: replay-single.sh test 52 fails
467 Details : A lock's skiplist need to be cleanup when it being unlinked
468 from its resource list.
472 Description: Short directio read returns full requested size rather than
474 Details : Direct I/O operations should return actual amount of bytes
475 transferred rather than requested size.
477 Severity : enhancement
479 Description: metadata RPC reduction (e.g. for rm performance)
480 Details : decrease the amount of synchronous RPC between clients and servers
481 by canceling conflicing lock before the operation on the client side
482 and packing thier handles into the main operation RPC to server.
484 Severity : enhancement
486 Description: Async OSC create to avoid the blocking unnecessarily.
487 Details : If a OST has no remain object, system will block on the creating
488 when need to create a new object on this OST. Now, ways use
489 pre-created objects when available, instead of blocking on an
490 empty osc while others are not empty. If we must block, we block
491 for the shortest possible period of time.
493 --------------------------------------------------------------------------------
495 2007-05-03 Cluster File Systems, Inc. <info@clusterfs.com>
500 Frequency : on some architectures
502 Description: 1.6 client sometimes fails to mount from a 1.4 MDT
503 Details : Uninitialized flags sometimes cause configuration commands to
507 Frequency : patchless clients only
509 Description: missing __iget() symbol export
510 Details : The __iget() symbol export is missing. To avoid the need for
511 this on patchless clients the deathrow inode reaper is turned
512 off, and we depend on the VM to clean up old inodes. This
513 dependency was during via the fix for bug 12181.
515 --------------------------------------------------------------------------------
517 2007-04-19 Cluster File Systems, Inc. <info@clusterfs.com>
519 * CONFIGURATION CHANGE. This version of Lustre WILL NOT
520 INTEROPERATE with older versions automatically. In many cases a
521 special upgrade step is needed. Please read the
522 user documentation before upgrading any part of a live system.
523 * WIRE PROTOCOL CHANGE from previous 1.6 beta versions. This
524 version will not interoperate with 1.6 betas before beta5 (1.5.95).
525 * WARNING: Lustre configuration and startup changes are required with
526 this release. See https://mail.clusterfs.com/wikis/lustre/MountConf
532 Severity : enhancement
534 Description: MountConf
535 Details : Lustre configuration is now managed via mkfs and mount
536 commands instead of lmc and lconf. New obd types (MGS, MGC)
537 are added for dynamic configuration management. See
538 https://mail.clusterfs.com/wikis/lustre/MountConf for
541 Severity : enhancement
543 Description: dynamic OST addition
544 Details : OSTs can now be added to a live filesystem
546 Severity : enhancement
548 Description: startup order invariance
549 Details : MDTs and OSTs can be started in any order. Clients only
550 require the MDT to complete startup.
552 Severity : enhancement
554 Description: parallel, asynchronous orphan cleanup
555 Details : orphan cleanup is now performed in separate threads for each
556 OST, allowing parallel non-blocking operation.
558 Severity : enhancement
560 Description: optimized stripe assignment
561 Details : stripe assignments are now made based on ost space available,
562 ost previous usage, and OSS previous usage, in order to try
563 to optimize storage space and networking resources.
565 Severity : enhancement
567 Description: Permanently set tunables
568 Details : All writable /proc/fs/lustre tunables can now be permanently
569 set on a per-server basis, at mkfs time or on a live
572 Severity : enhancement
574 Description: Lustre message v2
575 Details : Add lustre message format v2.
577 Severity : enhancement
579 Description: client OST exclusion list
580 Details : Clients can be started with a list of OSTs that should be
581 declared "inactive" for known non-responsive OSTs.
585 Description: SPEC SFS validation failure on NFS v2 over lustre.
586 Details : Changes the blocksize for regular files to be 2x RPC size,
587 and not depend on stripe size.
589 Severity : enhancement
591 Description: Multiple MD RPCs in flight.
592 Details : Further unserialise some read-only MDS RPCs - learn about intents.
593 To avoid overly-overloading MDS, introduce a limit on number of
594 MDS RPCs in flight for a single client and add /proc controls
595 to adjust this limit.
597 Severity : enhancement
599 Description: client read/write statistics
600 Details : Add client read/write call usage stats for performance
601 analysis of user processes.
602 /proc/fs/lustre/llite/*/offset_stats shows non-sequential
603 file access. extents_stats shows chunk size distribution.
604 extents_stats_per_process show chunk size distribution per
607 Severity : enhancement
609 Description: mds statistics
610 Details : Add detailed mds operations statistics in
611 /proc/fs/lustre/mds/*/stats.
615 Description: Failure of copying files with lustre special EAs.
616 Details : Client side always return success for setxattr call for lustre
617 special xattr (currently only "trusted.lov").
622 Description: Refcount LNET uuids
623 Details : The global LNET uuid list grew linearly with every startup;
624 refcount repeated list entries instead of always adding to
627 Severity : enhancement
629 Description: Dynamic service threads
630 Details : Within a small range, start extra service threads
631 automatically when the request queue builds up.
634 Frequency : mixed-endian client/server environments
636 Description: mixed-endian crashes
637 Details : The new msg_v2 system had some failures in mixed-endian
640 Severity : enhancement
642 Description: Easy OST removal
643 Details : OSTs can be permanently deactivated with e.g. 'lctl
644 conf_param lustre-OST0001.osc.active=0'
646 Severity : enhancement
648 Description: MGS proc entries
649 Details : Added basic proc entries for the MGS showing what filesystems
652 Severity : enhancement
654 Description: provide MGS failover
655 Details : Added config lock reacquisition after MGS server failover.
657 Severity : enhancement
659 Description: add Linux 2.4 support
660 Details : Added support for RHEL 2.4.21 kernel for 1.6 servers and clients
664 Description: a large application tries to do I/O to the same resource and dies
666 Details : Check the req->rq_arrival time after the call to
667 ost_brw_lock_get(), but before we do anything about
668 processing it & sending the BULK transfer request. This
669 should help move old stale pending locks off the queue as
670 quickly as obd_timeout.
673 Frequency : when an incorrect nid is specified during startup
675 Description: ptlrpc connect to non-existant node causes kernel crash
676 Details : LNET can't be re-entered from an event callback, which
677 happened when we expire a message after the export has been
678 cleaned up. Instead, hand the zombie cleanup off to another
681 Severity : enhancement
683 Description: plain/inodebits lock performance improvement
684 Details : Grouping plain/inodebits in granted list by their request modes
685 and bits policy, thus improving the performance of search through
689 Frequency : only if OST filesystem is corrupted
691 Description: client incorrectly hits assertion in ptlrpc_replay_req()
692 Details : for a short time RPCs with bulk IO are in the replay list,
693 but replay of bulk IOs is unimplemented. If the OST filesystem
694 is corrupted due to disk cache incoherency and then replay is
695 started it is possible to trip an assertion. Avoid putting
696 committed RPCs into the replay list at all to avoid this issue.
699 Frequency : liblustre (e.g. catamount) on a large cluster with >= 8 OSTs/OSS
701 Description: System hang on startup
702 Details : This bug allowed the liblustre (e.g. catamount) client to
703 return to the app before handling all startup RPCs. This
704 could leave the node unresponsive to lustre network traffic
705 and manifested as a server ptllnd timeout.
707 Severity : enhancement
709 Description: Add "/proc/sys/lustre/debug_peer_on_timeout"
710 Details : liblustre envirable: LIBLUSTRE_DEBUG_PEER_ON_TIMEOUT
711 boolean to control whether to print peer debug info when a
712 client's RPC times out.
715 Frequency : only for kernels with patches from Lustre below 1.4.3
717 Description: Remove old rdonly API
718 Details : Remove old rdonly API which unused from at least lustre 1.4.3
721 Frequency : only for devices with external journals
723 Description: Set external device read-only also
724 Details : During a commanded failover stop, we set the disk device
725 read-only while the server shuts down. We now also set any
726 external journal device read-only at the same time.
729 Frequency : when upgrading from 1.4 while trying to change parameters
731 Description: The wrong (new) MDC name was used when setting parameters for
732 upgraded MDT's. Also allows changing of OSC (and MDC)
733 parameters if --writeconf is specified at tunefs upgrade time.
736 Frequency : when setting specific ost indicies
738 Description: QOS code breaks on skipped indicies
739 Details : Add checks for missing OST indicies in the QOS code, so OSTs
740 created with --index need not be sequential.
742 Severity : enhancement
744 Description: Add uninit_groups feature to ldiskfs2 to speed up e2fsck
745 Details : The uninit_groups feature works in conjunction with the kernel
746 filesystem code (ldiskfs2 only) and e2fsprogs-1.39-cfs6 to speed
747 up the pass1 processing of e2fsck. This is a read-only feature
748 in ldiskfs2 only, so older kernels and current ldiskfs cannot
749 mount filesystems that have had this feature enabled.
751 Severity : enhancement
753 Description: Improve multi-block allocation algorithm to avoid fragmentation
754 Details : The mballoc3 code (ldiskfs2 only) adds new mechanisms to improve
755 allocation locality and avoid filesystem fragmentation.
757 ------------------------------------------------------------------------------
759 2007-04-01 Cluster File Systems, Inc. <info@clusterfs.com>
761 * Support for kernels:
762 2.4.21-47.0.1.EL (RHEL 3)
764 2.6.9-42.0.10.EL (RHEL 4)
765 2.6.12.6 vanilla (kernel.org)
766 2.6.16.27-0.9 (SLES 10)
767 * Recommended e2fsprogs version: 1.39.cfs5
769 * Note that reiserfs quotas are disabled on SLES 10 in this kernel
773 Frequency : occasional, depends on client load and configuration
774 Bugzilla : 12181, 12203
775 Description: data loss for recently-modified files
777 Details : In some cases it is possible that recently written or created
778 files may not be written to disk in a timely manner (this should
779 normally be within 30s unless client IO load is very high).
780 The problem appears as zero-length files or files that are a
781 multiple of 1MB in size after a client crash or client eviction
782 that are missing data at the end of the file.
784 This problem is more likely to be hit on clients where files are
785 repeatedly created and unlinked in the same directory, clients
786 have a large amount of RAM, have many CPUs, the filesystem has
787 many OSTs, the clients are rebooted frequently, and/or the files
788 are not accessed by other nodes after being written.
790 The presence of the problem can be detected by looking at
791 /proc/sys/fs/inode-state. If the first number (nr_inodes) is
792 smaller than the second (nr_unused) then dirty files will not
793 be flushed automatically to disk. "sync; sleep 10" should be
794 run several times on the node before unmounting it to update
795 Lustre (this is also safe to run on nodes without this problem).
797 There is also a related kernel bug in the RHEL4 4 2.6.9 kernel
798 that can cause this same problem, so customers using that kernel
799 also need to update the kernel in addition to Lustre. In order
800 to properly fix this bug, the RHEL3 2.4.21 kernel is also updated.
802 It is normal that files written just before a client crash (less
803 than 30s) may not yet have been flushed to disk, even for local
807 Frequency : frequent on thin XT3 nodes
809 Description: UUID collision on thin XT3 Linux nodes
810 Details : UUIDs on Compute Node Linux XT3 nodes were not generated
811 randomly, since we relied on an insufficiently-seeded PRNG.
816 Description: OSS hangs after "All ost request buffers busy"
817 Details : A deadlock between quota and journal operations caused OSS
818 hangs after printing "All ost request buffers busy."
821 Frequency : always on liblustre builds
823 Description: Cleanup compiler warnings on liblustre
826 Frequency : always on liblustre builds on XT3
828 Description: LC_CONFIG_CDEBUG don't run while build liblustre on XT3.
832 Description: Addition of EXT3_FEATURE_RO_COMPAT_DIR_NLINKS flag for
833 > 32000 subdirectories
834 Details : Add EXT3_FEATURE_RO_COMPAT_DIR_NLINK flag to
835 EXT3_FEATURE_RO_COMPAT_SUPP. This flag will be set whenever
836 subdirectory count crosses 32000. This will aid e2fsck to
837 correctly handle more than 32000 subdirectories.
840 Frequency : liblustre (e.g. catamount) on a large cluster with >= 8 OSTs/OSS
842 Description: System hang on startup
843 Details : This bug allowed the liblustre (e.g. catamount) client to
844 return to the app before handling all startup RPCs. This
845 could leave the node unresponsive to lustre network traffic
846 and manifested as a server ptllnd timeout.
848 Severity : enhancement
850 Description: Add "/proc/sys/lustre/debug_peer_on_timeout"
851 (liblustre envirable: LIBLUSTRE_DEBUG_PEER_ON_TIMEOUT)
852 boolean to control whether to print peer debug info when a
853 client's RPC times out.
858 Description: make O_SYNC working on 2.6 kernels
859 Details : 2.6 kernels use different method for mark pages for write,
860 so need add a code to lustre for O_SYNC work.
865 Description: Failure to close file and release space on NFS
866 Details : Put inode details into lock acquired in ll_intent_file_open.
867 Use mdc_intent_lock in ll_intent_open to properly
868 detect all kind of errors unhandled by mdc_enqueue.
873 Description: proc file read during shutdown sometimes raced obd removal,
875 Details : Add lock to prevent obd access after proc file removal.
878 Frequency : Only for files larger than 4GB on 32-bit clients.
880 Description: improperly doing page alignment of locks
881 Details : Modify lustre core code to use CFS_PAGE_* defines instead of
882 PAGE_*. Make CFS_PAGE_MASK a 64-bit mask.
887 Description: RPCs being resent when they shouldn't be
888 Details : Some RPCs that should not be resent are being resent. This
889 can cause inconsistencies in the RPC state machine. Do not
890 resend such requests.
893 Frequency : rare, only with NFS export
895 Description: Crash on NFS re-export node
896 Details : under very unusual load conditions an assertion is hit in
897 ll_intent_file_open()
900 Frequency : only if OST filesystem is corrupted
902 Description: client incorrectly hits assertion in ptlrpc_replay_req()
903 Details : for a short time RPCs with bulk IO are in the replay list,
904 but replay of bulk IOs is unimplemented. If the OST filesystem
905 is corrupted due to disk cache incoherency and then replay is
906 started it is possible to trip an assertion. Avoid putting
907 committed RPCs into the replay list at all to avoid this issue.
912 Description: large O_DIRECT requests fail under memory pressure/fragmentation
913 Details : Large single O_DIRECT read and write calls can fail to allocate
914 a sufficiently large buffer to process the request. In case of
915 allocation failure the allocation is retried with a smaller
916 buffer and broken into smaller requests.
918 Severity : enhancement
920 Description: Add -o localflock option to simulate old noflock behaviour.
921 Details : This will achieve local-only flock/fcntl locks coherentness.
926 Description: versioning check is incomplete
927 Details : Checking the version difference of client vs. server, report
928 error if the gap is too big.
933 Description: add support PG_writeback bit
934 Details : add support for PG_writeback bit for Lustre, for more carefull
935 work with page cache in 2.6 kernel. This also fix some deadlocks
936 and remove hack for work O_SYNC with 2.6 kernel.
938 Severity : enhancement
940 Description: Add uninit_groups feature to ldiskfs2 to speed up e2fsck
941 Details : The uninit_groups feature works in conjunction with the kernel
942 filesystem code (ldiskfs2 only) and e2fsprogs-1.39-cfs6 to speed
943 up the pass1 processing of e2fsck. This is a read-only feature
944 in ldiskfs2 only, so older kernels and current ldiskfs cannot
945 mount filesystems that have had this feature enabled.
947 Severity : enhancement
949 Description: Improve multi-block allocation algorithm to avoid fragmentation
950 Details : The mballoc3 code (ldiskfs2 only) adds new mechanisms to improve
951 allocation locality and avoid filesystem fragmentation.
953 ------------------------------------------------------------------------------
955 2007-02-09 Cluster File Systems, Inc. <info@clusterfs.com>
957 * Support for kernels:
958 2.6.9-42.0.3.EL (RHEL 4)
960 2.4.21-47.0.1.EL (RHEL 3)
961 2.6.12.6 vanilla (kernel.org)
962 2.6.16.21-0.8 (SLES10)
963 * Recommended e2fsprogs version: 1.39.cfs2-0
965 * The backwards-compatible /proc/sys/portals symlink has been removed
966 in this release. Before upgrading, please ensure that you change
967 any configuration scripts or /etc/sysctl.conf files that access
968 /proc/sys/portals/* or sysctl portals.* to use the corresponding
969 entry in /proc/sys/lnet or sysctl lnet.*. This change can be made
970 in advance of the upgrade on any system running Lustre 1.4.6 or
971 newer, since /proc/sys/lnet was added in that version.
972 * Note that reiserfs quotas are disabled on SLES 10 in this kernel
976 Frequency : only when quota is used
978 Description: avoid scanning export list for quota master
979 Details : Change the algorithms to avoid scanning export list in order
980 to improve the efficiency.
983 Frequency : MDS failover only, very rarely
985 Description: "went back in time" messages on mds failover
986 Details : The greatest transno may be lost when the current operation
987 finishes with an error (transno==0) and the client's last_rcvd
988 record is over-written. Save the greatest transno in the
989 mds_last_transno for this case.
992 Frequency : always for specific kernels and striping counts
994 Description: client may get "Matching packet too big" without ACL support
995 Details : Clients compiled without CONFIG_FS_POSIX_ACL get an error message
996 when trying to access files in certain configurations. The
997 clients should in fact be denied when mounting because they do
1001 Frequency : Cray XT3 with more than 4000 clients and multiple jobs
1003 Description: many clients connecting with IO in progress causes connect timeouts
1004 Details : Avoid synchronous journal commits to avoid delays caused by many
1005 clients connecting/disconnecting when bulk IO is in progress.
1006 Queue liblustre connect requests on OST_REQUEST_PORTAL instead of
1007 OST_IO_PORTAL to avoid delays behind potentially many pending
1011 Frequency : occasionally with multiple writers to a single file
1013 Description: shared writes to file may result in wrong size reported by stat()
1014 Details : Allow growing of kms when extent lock is cancelled
1017 Frequency : always with random mmap IO to multi-striped file
1019 Description: mmap write might be lost if we are writing to a 'hole' in stripe
1020 Details : Only if the hole is at the end of OST object so that kms is too
1021 small. Fix is to increase kms accordingly in ll_nopage.
1024 Frequency : rare, only if OST filesystem is inconsistent with MDS filesystem
1026 Description: writes to a missing object would leak memory on the OST
1027 Details : If there is an inconsistency between the MDS and OST filesystems,
1028 such that the MDS references an object that doesn't exist, writes
1029 to that object will leak memory due to incorrect cleanup in the
1030 error handling path, eventually running out of memory on the OST.
1035 Description: Creating too long symlink causes lustre errors
1036 Details : Check symlink and name lengths before sending requests to MDS.
1039 Frequency : only if flock is enabled (not on by default)
1041 Description: posix locks not released on fd closure on 2.6.9+
1042 Details : We failed to add posix locks to list of inode locks on 2.6.9+
1043 kernels, this caused such locks not to be released on fd close and
1044 then assertions on fs unmount about still used locks.
1047 Frequency : MDS failover only, very rarely
1049 Description: clients may get ASSERTION(granted_lock != NULL)
1050 Details : When request was taking a long time, and a client was resending
1051 a getattr by name lock request. The were multiple lock requests
1052 with the same client lock handle and
1053 mds_getattr_name->fixup_handle_for_resent_request found one of the
1054 lock handles but later failed with ASSERTION(granted_lock != NULL).
1059 Description: handle->h_buffer_credits > 0, assertion failure
1060 Details : h_buffer_credits is zero after truncate, causing assertion
1061 failure. This patch extends the transaction or creates a new
1065 Frequency : NFS re-export or patchless client
1066 Bugzilla : 11179, 10796
1067 Description: Crash on NFS re-export node (__d_move)
1068 Details : We do not want to hash the dentry if we don't have a lock.
1069 But if this dentry is later used in d_move, we'd hit uninitialised
1070 list head d_hash, so we just do this to init d_hash field but
1071 leave dentry unhashed.
1074 Frequency : NFS re-export or patchless client
1076 Description: NFS exports has problem with symbolic link
1077 Details : lustre client didn't properly install dentry when re-exported
1078 to NFS or running patchless client.
1081 Frequency : NFS re-export or patchless client
1083 Description: Various nfs/patchless fixes.
1084 Details : fixes reuse disconected alias for lookup process - this fixes
1085 warning "find_exported_dentry: npd != pd",
1086 fix permission error with open files at nfs.
1087 fix apply umask when do revalidate.
1090 Frequency : occasional
1092 Description: Crash on NFS re-export node
1093 Details : calling clear_page() on the wrong pointer triggered oops in
1094 generic_mapping_read().
1097 Frequency : rarely, using O_DIRECT IO
1099 Description: unaligned directio crashes client with LASSERT
1100 Details : check for unaligned buffers before trying any requests.
1103 Frequency : rarely, using CFS RAID5 patches in non-standard kernel series
1105 Description: stale data returned from RAID cache
1106 Details : If only a small amount of IO is done to the RAID device before
1107 reading it again it is possible to get stale data from the RAID
1108 cache instead of reading it from disk.
1111 Frequency : always for sles10 kernel
1113 Description: sles10 support
1114 Details : ll_follow_link: compile fixes and using of nd_set_link
1115 under newer kernels.
1118 Frequency : depends on arch, kernel and compiler version, always on sles10
1121 Description: recursive or deep enough symlinks cause stack overflow
1122 Details : getting rid of large stack-allocated variable in
1126 Frequency : depends on hardware
1128 Description: lustre write performance loss in the SLES10 kernel
1129 Details : the performance loss is caused by using of write barriers in the
1130 ext3 code. The SLES10 kernel turns barrier support on by
1131 default. The fix is to undo that change for ldiskfs.
1133 ------------------------------------------------------------------------------
1135 2006-12-09 Cluster File Systems, Inc. <info@clusterfs.com>
1137 * Support for kernels:
1138 2.6.9-42.0.3EL (RHEL 4)
1139 2.6.5-7.276 (SLES 9)
1140 2.4.21-47.0.1.EL (RHEL 3)
1141 2.6.12.6 vanilla (kernel.org)
1145 Frequency : quota enabled and large files being deleted
1147 Description: releasing more than 4GB of quota at once hangs OST
1148 Details : If a user deletes more than 4GB of files on a single OST it
1149 will cause the OST to spin in an infinite loop. Release
1150 quota in < 4GB chunks, or use a 64-bit value for 1.4.7.1+.
1155 Description: statfs data retrieved from /proc may be stale or zero
1156 Details : When reading per-device statfs data from /proc, in the
1157 {kbytes,files}_{total,free,avail} files, it may appear
1158 as zero or be out of date.
1161 Frequency : systems with MD RAID1 external journal devices
1163 Description: lconf's call to blkid is confused by RAID1 journal devices
1164 Details : Use the "blkid -l" flag to locate the MD RAID device instead
1165 of returning all block devices that match the journal UUID.
1168 Frequency : always, for aggregate stripe size over 4GB
1170 Description: "lfs setstripe" fails assertion when setting 4GB+ stripe width
1171 Details : Using "lfs setstripe" to set stripe size * stripe count over 4GB
1172 will fail the kernel with "ASSERTION(lsm->lsm_xfersize != 0)"
1175 Frequency : always if "lfs find" used on a local file/directory
1177 Description: "lfs find" segfaults if used on a local file/directory
1178 Details : The case where a directory component was not specified wasn't
1179 handled correctly. Handle this properly.
1182 Frequency : always on ppc64
1184 Description: the write to an ext3 filesystem mounted with mballoc got stuck
1185 Details : ext3_mb_generate_buddy() uses find_next_bit() which does not
1186 perform endianness conversion.
1189 Frequency : rarely (truncate to non-zero file size after write under load)
1190 Bugzilla : 10730, 10687
1191 Description: Files padded with zeros to next 4K multiple
1192 Details : With filesystems mounted using the "extents" option (2.6 kernels)
1193 it is possible that files that are truncated to a non-zero size
1194 immediately after being written are filled with zero bytes beyond
1195 the truncated size. No file data is lost.
1197 Severity : enhancement
1199 Description: Allow recovery/failover for liblustre clients.
1200 Details : liblustre clients were unaware of failover configurations until
1203 Severity : enhancement
1205 Description: user file locks should fail when not mounting with flock option
1206 Details : Set up an error-returning stub in ll_file_operations.lock field
1207 to prevent incorrect behaviour when client is mounted without
1208 flock option. Also, set up properly f_op->flock field for
1212 Frequency : always on ia64
1214 Description: "lfs df" loops on printing out MDS statfs information
1215 Details : The obd_ioctl_data was not initialized and in some systems
1216 this caused a failure during the ioctl that did not return
1217 an error. Initialize the struct and return an error on failure.
1220 Frequency : SLES 9 only
1222 Description: Error of copying files with lustre special EAs as root
1223 Details : Client side always return success for setxattr call for lustre
1224 special xattr (currently only "trusted.lov").
1227 Frequency : rarely on clusters with both ia64+i386 clients
1229 Description: ia64+i686 clients doing shared IO on the same file may LBUG
1230 Details : In rare cases when both ia64+i686 (or other mixed-PAGE_SIZE)
1231 clients are doing concurrent writes to the same file it is
1232 possible that the ia64 clients may LASSERT because the OST
1233 extent locks are not PAGE_SIZE aligned. Ensure that grown
1234 locks are always aligned on the request boundary.
1237 Frequency : specific use, occasional
1239 Description: Overwriting in use executable truncates on-disk binary image
1240 Details : If one node attempts to overwrite an executable in use by
1241 another node, we now correctly return ETXTBSY instead of
1242 truncating the file.
1244 Severity : enhancement
1246 Description: Async OSC create to avoid the blocking unnecessarily.
1247 Details : If a OST has no remain object, system will block on the creating
1248 when need to create a new object on this OST. Now, ways use
1249 pre-created objects when available, instead of blocking on an
1250 empty osc while others are not empty. If we must block, we block
1251 for the shortest possible period of time.
1256 Description: chmod on Lustre root is propagated to other clients
1257 Details : Re-validate root's dentry in ll_lookup_it to avoid having it
1258 invalid by the follow_mount time.
1261 Frequency : liblustre clients only
1263 Description: Race in 'instant cancel' lock handling could lead to such locks
1264 never to be granted in case of SMP MDS
1265 Details : Do not destroy not yet granted but cbpending locks in
1269 Frequency : replay/resend of open
1271 Description: non null lock assetion failure in mds_intent_policy
1272 Details : Trying to replay/resend lockless open requests resulted in
1273 mds_open() returning 0 with no lock. Now it sets a flag if
1274 a lock is going to be returned.
1276 Severity : enhancement
1278 Description: Checksum enhancements
1279 Details : New checksum enhancements allow for resending RPCs that failed
1282 Severity : enhancement
1284 Description: Tunables on number of dirty pages in cacche
1285 Details : Allow to set limit on number of dirty pages cached.
1290 Description: client crash on unmount - lock still has references
1291 Details : In some error handling cases it was possible to leak a lock
1292 reference on a client while accessing a file. This was not
1293 harmful to the client during operation, but would cause the
1294 client to crash when the filesystem is unmounted.
1297 Frequency : specific case, rare
1299 Description: ETXTBSY on mds though file not in use by client
1300 Details : ETXTBSY is no longer incorrectly returned when attempting to
1301 chmod or chown a directory that the user previously tried to
1302 execute or a currently-executing binary.
1305 Frequency : extremely rare except on liblustre-based clients
1307 Description: Lustre space not freed when files are deleted
1308 Details : Clean up open-unlinked files after client eviction. Previously
1309 the unlink was skipped and the files remained as orphans.
1314 Description: OST failure "would be an LBUG" in waiting_locks_callback()
1315 Details : In some cases it was possible to send a blocking callback to
1316 a client doing a glimpse, even though that client didn't get
1317 a lock granted. When the glimpse lock is cancelled on the OST
1318 the freed lock is left on the waiting list and corrupted the list.
1321 Frequency : all core dumps
1323 Description: Broke core dumps to lustre
1324 Details : Negative dentry may be unhashed if parent does not have UPDATE
1325 lock, but some callers, e.g. do_coredump, expect dentry to be
1326 hashed after successful create, hash it in ll_create_it.
1328 ------------------------------------------------------------------------------
1330 2006-09-13 Cluster File Systems, Inc. <info@clusterfs.com>
1332 * Support for kernels:
1333 2.6.9-42.0.2.EL (RHEL 4)
1334 2.6.5-7.276 (SLES 9)
1335 2.4.21-40.EL (RHEL 3)
1336 2.6.12.6 vanilla (kernel.org)
1340 Frequency : always on RHEL 3
1342 Description: Number of open files grows over time
1343 Details : The number of open files grows over time, whether or not
1344 Lustre is started. This was due to a filp leak introduced
1345 by one of our kernel patches.
1347 ------------------------------------------------------------------------------
1349 08-20-2006 Cluster File Systems, Inc. <info@clusterfs.com>
1351 * Support for kernels:
1352 2.6.9-42.EL (RHEL 4)
1353 2.6.5-7.276 (SLES 9)
1354 2.4.21-40.EL (RHEL 3)
1355 2.6.12.6 vanilla (kernel.org)
1360 Bugzilla : 5719, 9635, 9792, 9684
1361 Description: OST (or MDS) trips assertions in (re)connection under heavy load
1362 Details : If a server is under heavy load and cannot reply to new
1363 connection requests before the client resends the (re)connect,
1364 the connection handling code can behave badly if two service
1365 threads are concurrently handing separate (re)connections from
1366 the same client. Add better locking to the connection handling
1367 code, and ensure that only a single connection will be processed
1368 for a given client UUID, even if the lock is dropped.
1370 Severity : enhancement
1372 Description: add TCP zero-copy support to kernel
1373 Details : Add support to the kernel TCP stack to allow zero-copy bulk
1374 sends if the hardware supports scatter-gather and checksumming.
1375 This allows socklnd to do client-write and server-read more
1376 efficiently and reduce CPU utilization from skbuf copying.
1379 Frequency : only if NFS exporting from client
1381 Description: NULL pointer deref in ll_iocontrol() if chattr mknod file
1382 Details : If setting attributes on a file created under NFS that had
1383 never been opened it would be possible to oops the client
1384 if the file had no objects.
1387 Frequency : always for liblustre
1389 Description: liblustre client does MDS+OSTs setattr RPC for each write
1390 Details : When doing a write from a liblustre client, the client
1391 incorrectly issued an RPC to the MDS and each OST the file was
1392 striped over in order to update the timestamps. When writing
1393 with small chunks and many clients this could overwhelm the MDS
1394 with RPCs. In all cases it would slow down the write because
1395 these RPCs are unnecessary.
1397 Severity : enhancement
1399 Description: allow number of MDS service threads to be changed at module load
1400 Details : It is now possible to change the number of MDS service threads
1401 running. Adding "options mds mds_num_threads={N}" to the MDS's
1402 /etc/modprobe.conf will set the number of threads for the next
1403 time Lustre is restarted (assuming the "mds" module is also
1404 reloaded at that time). The default number of threads will
1405 stay the same, 32 for most systems.
1410 Description: OST crash if filesystem is unformatted or corrupt
1411 Details : If an OST is started on a device that has never been formatted
1412 or if the filesystem is corrupt and cannot even mount then the
1413 error handling cleanup routines would dereference a NULL pointer.
1418 Description: NULL pointer deref in llap_from_page.
1419 Details : get_cache_page_nowait can return a page with NULL (or otherwise
1420 incorrect) mapping if the page was truncated/reclaimed while it was
1421 searched for. Check for this condition and skip such pages when
1422 doing readahead. Introduce extra check to llap_from_page() to
1423 verify page->mapping->host is non-NULL (so page is not anonymous).
1426 Frequency : Sometimes when using sys_sendfile
1428 Description: "page not covered by a lock" warnings from ll_readpage
1429 Details : sendfile called ll_readpage without right page locks present.
1430 Now we introduced ll_file_sendfile that does necessary locking
1431 around call to generic_file_sendfile() much like we do in
1435 Frequency : with certain MDS communication failures at client mount time
1437 Description: NULL pointer deref after failed client mount
1438 Details : a client connection request may delayed by the network layer
1439 and not be sent until after the PTLRPC layer has timed out the
1440 request. If the client fails the mount immediately it will try
1441 to clean up before the network times out the request. Add a
1442 reference from the request import to the obd device and delay
1443 the cleanup until the network drops the request.
1446 Frequency : occasionally during client (re)connect
1448 Description: assertion failure during client (re)connect
1449 Details : processing a client connection request may be delayed by the
1450 client or server longer than the client connect timeout. This
1451 causes the client to resend the connection request. If the
1452 original connection request is replied in this interval, the
1453 client may trip an assertion failure in ptlrpc_connect_interpret()
1454 which thought it would be the only running connect process.
1457 Frequency : only with obd_echo servers and clients that are rebooted
1459 Description: kernel BUG accessing uninitialized data structure
1460 Details : When running an obd_echo server it did not start the ping_evictor
1461 thread, and when a client was evicted an uninitialized data
1462 structure was accessed. Start the ping_evictor in the RPC
1463 service startup instead of the OBD startup.
1465 Severity : enhancement
1466 Bugzilla : 10193 (patchless)
1467 Description: Remove dependency on various unexported kernel interfaces.
1468 Details : No longer need reparent_to_init, exit_mm, exit_files,
1469 sock_getsockopt, filemap_populate, FMODE_EXEC, put_filp.
1472 Frequency : rare (only users of deprecated and unsupported LDAP config)
1474 Description: write_conf for zeroconf mount queried LDAP incorrectly for client
1475 Details : LDAP apparently contains 'lustreName' attributes instead of
1476 'name'. A simple remapping of the name is sufficient.
1479 Frequency : rare (only with non-default dump_on_timeout debug enabled)
1481 Description: waiting_locks_callback trips kernel BUG if client is evicted
1482 Details : Running with the dump_on_timeout debug flag turned on makes
1483 it possible that the waiting_locks_callback() can try to dump
1484 the Lustre kernel debug logs from an interrupt handler. Defer
1485 this log dumping to the expired_lock_main() thread.
1487 Severity : enhancement
1489 Description: Support NFS exporting on 2.6 kernels.
1490 Details : Implement non-rawops metadata methods for NFS server to use without
1491 changing NFS server code.
1494 Frequency : very rare (synthetic metadata workload only)
1496 Description: two racing renames might cause an MDS thread to deadlock
1497 Details : Running the "racer" program may cause one MDS thread to rename
1498 a file from being the source of a rename to being the target of
1499 a rename at exactly the same time that another thread is doing
1500 so, and the second thread has already enqueued these locks after
1501 doing a lookup of the target and is trying to relock them in
1502 order. Ensure that we don't try to re-lock the same resource.
1505 Frequency : only very large systems with liblustre clients
1507 Description: slow eviction of liblustre clients with the "evict_by_nid" RPC
1508 Details : Use asynchronous set_info RPCs to send the "evict_by_nid" to
1509 all OSTs in parallel. This allows the eviction of stale liblustre
1510 clients to proceed much faster than if they were done in series,
1511 and also offers similar improvements for other set_info RPCs.
1516 Description: excessive CPU usage during initial read phase on client
1517 Details : During the initial read phase on a client, it would agressively
1518 retry readahead on the file, consuming too much CPU and impacting
1519 performance (since 1.4.5.8). Improve the readahead algorithm
1520 to avoid this, and also improve some other common cases (read
1521 of small files in particular, where "small" is files smaller than
1522 /proc/fs/lustre/llite/*/max_read_ahead_whole_mb, 2MB by default).
1527 Description: MDS crash when receiving packet with unknown intent.
1528 Details : Do not LBUG in unknown intent case, just return -EFAULT
1530 Severity : enhancement
1531 Bugzilla : 9293, 9385
1532 Description: MDS RPCs are serialised on client. This is unnecessary for some.
1533 Details : Do not serialize getattr (non-intent version) and statfs.
1536 Frequency : occasional, when OST network is overloaded/intermittent
1538 Description: client evicted by OST after bulk IO timeout
1539 Details : If a client sends a bulk IO request (read or write) the OST
1540 may evict the client if it is unresposive to its data GET/PUT
1541 request. This is incorrect if the network is overloaded (takes
1542 too long to transfer the RPC data) or dropped the OST GET/PUT
1543 request. There is no need to evict the client at all, since
1544 the pinger and/or lock callbacks will handle this, and the
1545 client can restart the bulk request.
1548 Frequency : Always when mmapping file with no objects
1550 Description: client crashes when mmapping file with no objects
1551 Details : Check that we actually have objects in a file before doing any
1552 operations on objects in ll_vm_open, ll_vm_close and
1558 Description: Request leak when working with deleted CWD
1559 Details : Introduce advanced request refcount tracking for requests
1560 referenced from lustre intent.
1562 Severity : Enhancement
1564 Description: Cache open file handles on client.
1565 Details : MDS now will return special lock along with openhandle, if
1566 requested and client is allowed to hold openhandle, even if unused,
1567 until such a lock is revoked. Helps NFS a lot, since NFS is opening
1568 closing files for every read/write openration.
1570 Severity : Enhancement
1572 Description: Cache open negative dentries on client when possible.
1573 Details : Guard negative dentries with UPDATE lock on parent dir, drop
1574 negative dentries on lock revocation.
1579 Description: Remounting a client read-only wasn't possible with a zconf mount
1580 Details : It wasn't possible to remount a client read-only with llmount.
1582 Severity : enhancement
1583 Description: Include MPICH 1.2.6 Lustre ADIO interface patch
1584 Details : In lustre/contrib/ or /usr/share/lustre in RPM a patch for
1585 MPICH is included to add Lustre-specific ADIO interfaces.
1586 This is based closely on the UFS ADIO layer and only differs
1587 in file creation, in order to allow the OST striping to be set.
1588 This is user-contributed code and not supported by CFS.
1593 Description: extended inode attributes (immutable, append-only) work improperly
1594 when 2.4 and 2.6 kernels are used on client/server or vice versa
1595 Details : Introduce kernel-independent values for these flags.
1597 Severity : enhancement
1600 Description: Allow fractional MB tunings for lustre in /proc/ filesystem.
1601 Details : Many of the /proc/ tunables can only be tuned at a megabyte
1602 granularity. Now, Fractional MB granularity is be supported,
1603 this is very useful for low memory system.
1605 Severity : enhancement
1607 Description: Getattr by fid
1608 Details : Getting a file attributes by its fid, obtaining UPDATE|LOOKUP
1609 locks, avoids extra getattr rpc requests to MDS, allows '/' to
1610 have locks and avoids getattr rpc requests for it on every stat.
1613 Frequency : Always, for filesystems larger than 2TB
1615 Description: ldiskfs crash at mount for filesystem larger than 2TB with mballoc
1616 Details : Kenrel kmalloc limits allocations to 128kB and this prevents
1617 filesystems larger than 2TB to be mounted with mballoc enabled.
1620 Frequency : Always, for 32-bit kernel without CONFIG_LBD and filesystem > 2TB
1622 Description: ldiskfs crash at mount for filesystem larger than 2TB with mballoc
1623 Details : If a 32-bit kernel is compiled without CONFIG_LBD enabled and a
1624 filesystems larger than 2TB is mounted then the kernel will
1625 silently corrupt the start of the filesystem. CONFIG_LBD is
1626 enabled for all CFS-supported kernels, but the possibility of
1627 this happening with a modified kernel config exists.
1629 Severity : enhancement
1631 Description: add client O_DIRECT support for 2.6 kernels
1632 Details : It is now possible to do O_DIRECT reads and writes to files
1633 in the Lustre client mountpoint on 2.6 kernel clients.
1635 Severity : enhancement
1637 Description: parallel glimpse, setattr, statfs, punch, destroy requests
1638 Details : Sends glimpse, setattr, statfs, punch, destroy requests to OSTs in
1639 parallel, not waiting for response from every OST before sending
1640 a rpc to the next OST.
1645 Description: setattr vs write race when updating file timestamps
1646 Details : Client processes that update a file timestamp into the past
1647 right after writing to the file (e.g. tar) it is possible that
1648 the updated file modification time can be reset to the current
1649 time due to a race between processing the setattr and write RPC.
1651 Severity : enhancement
1653 Description: Bring 'lfs find' closer in line with regular Linux find.
1654 Details : lfs find util supports -atime, -mtime, -ctime, -maxdepth, -print,
1655 -print0 options and obtains all the needed info through the lustre
1658 Severity : enhancement
1660 Description: support up to 1024 configured devices on one node
1661 Details : change obd_dev array from statically allocated to dynamically
1662 allocated structs as they are first used to reduce memory usage
1667 Description: Flush dirty partially truncated pages during truncate
1668 Details : Immediatelly flush partially truncated pages in filter_setattr,
1669 this way we completely avoid having any pages in page cache on OST
1670 and can retire ugly workarounds during writes to flush such pages.
1675 Description: i_sem vs transaction deadlock in mds_obd_destroy during unlink.
1676 Details : protect inode from truncation within vfs_unlink() context
1677 just take a reference before calling vfs_unlink() and release it
1678 when parent's i_sem is free.
1683 Description: last_id value checked outside lock on OST caused LASSERT failure
1684 Details : If there were multiple MDS->OST object precreate requests in
1685 flight, it was possible that the OST's last object id was checked
1686 outside a lock and incorrectly tripped an assertion. Move checks
1687 inside locks, and discard old precreate requests.
1690 Frequency : always, if extents are used on OSTs
1692 Description: index ei_leaf_hi (48-bit extension) is not zeroed in extent index
1693 Details : OSTs using the extents format would not zero the high 16 bits of
1694 the index physical block number. This is not a problem for any
1695 OST filesystems smaller than 16TB, and no kernels support ext3
1696 filesystems larger than 16TB yet. This is fixed in 1.4.7 (all
1697 new/modified files) and can be fixed for existing filesystems
1698 with e2fsprogs-1.39-cfs1.
1703 Description: import connection selection may be incorrect if timer wraps
1704 Details : Using a 32-bit jiffies timer with HZ=1000 may cause backup
1705 import connections to be ignored if the 32-bit jiffies counter
1706 wraps. Use a 64-bit jiffies counter.
1709 Frequency : very large clusters immediately after boot
1711 Description: LNET request buffers exhausted under heavy short-term load
1712 Details : If a large number of client requests are generated on a service
1713 that has previously never seen so many requests it is possible
1714 that the request buffer growth cannot keep up with the spike in
1715 demand. Instead of dropping incoming requests, they are held in
1716 the LND until the RPC service can accept more requests.
1719 Frequency : Sometimes during replay
1721 Description: Assertion failure in ll_local_open after replay.
1722 Details : If replay happened on an open request reply before we were able
1723 to set replay handler, reply will become not swabbed tripping the
1724 assertion in ll_local_open. Now we set the handler right after
1725 recognising of open request
1728 Frequency : very rare
1730 Description: kernel reports "badness in vsnprintf"
1731 Details : Reading from the "recovery_status" /proc file in small chunks
1732 may cause a negative length in lprocfs_obd_rd_recovery_status()
1733 call to vsnprintf() (which is otherwise harmless). Exit early
1734 if there is no more space in the output buffer.
1736 Severity : enhancement
1738 Description: clear OBD RPC statistics by writing to them
1739 Details : It is now possible to clear the OBD RPC statistics by writing
1740 to the "stats" file.
1745 Description: Client mtime is not the same on different clients after utimes
1746 Details : In some cases, the client was using the utimes() syscall on
1747 a file cached on another node. The clients now validate the
1748 ctime from the MDS + OSTs to determine which one is right.
1753 Description: Inability to activate failout mode
1754 Details : lconf script incorrectly assumed that in pythong string's numeric
1755 value is used in comparisons.
1758 Frequency : always with multiple stripes per file
1760 Description: Inefficient object allocation for mutli-stripe files
1761 Details : When selecting which OSTs to stripe files over, for files with
1762 a stripe count that divides evenly into the number of OSTs,
1763 the MDS is always picking the same starting OST for each file.
1764 Return the OST selection heuristic to the original design.
1769 Description: mount failures may take full timeout to return an error
1770 Details : Under some heavy load conditions it is possible that a
1771 failed mount can wait for the full obd_timeout interval,
1772 possibly several minutes, before reporting an error.
1773 Instead return an error as soon as the status is known.
1775 Frequency : quota enabled and large files being deleted
1777 Description: releasing more than 4GB of quota at once hangs OST
1778 Details : If a user deletes more than 4GB of files on a single OST it
1779 will cause the OST to spin in an infinite loop. Release
1780 quota in < 4GB chunks, or use a 64-bit value for 1.4.7.1+.
1785 Description: statfs data retrieved from /proc may be stale or zero
1786 Details : When reading per-device statfs data from /proc, in the
1787 {kbytes,files}_{total,free,avail} files, it may appear
1788 as zero or be out of date.
1791 Frequency : systems with MD RAID1 external journal devices
1793 Description: lconf's call to blkid is confused by RAID1 journal devices
1794 Details : Use the "blkid -l" flag to locate the MD RAID device instead
1795 of returning all block devices that match the journal UUID.
1798 Frequency : always, for aggregate stripe size over 4GB
1800 Description: assertion fails when trying to use 4GB stripe size
1801 Details : Use "setstripe" to set stripe size over 4GB will fail the kernel,
1802 complaining "ASSERTION(lsm->lsm_xfersize != 0)"
1805 Frequency : always on ppc64
1807 Description: the first write on an ext3 filesystem with mballoc got stuck
1808 Details : ext3_mb_generate_buddy() uses find_next_bit() which does not
1809 perform endianness conversion.
1811 ------------------------------------------------------------------------------
1813 02-14-2006 Cluster File Systems, Inc. <info@clusterfs.com>
1815 * WIRE PROTOCOL CHANGE. This version of Lustre networking WILL NOT
1816 INTEROPERATE with older versions automatically. Please read the
1817 user documentation before upgrading any part of a live system.
1818 * WARNING: Lustre networking configuration changes are required with
1819 this release. See https://bugzilla.clusterfs.com/show_bug.cgi?id=10052
1822 * Support for kernels:
1823 2.6.9-22.0.2.EL (RHEL 4)
1824 2.6.5-7.244 (SLES 9)
1825 2.6.12.6 vanilla (kernel.org)
1828 Severity : enhancement
1829 Bugzilla : 7981/8208
1830 Description: Introduced Lustre Networking (LNET)
1831 Details : LNET is new networking infrastructure for Lustre, it includes
1832 a reorganized network configuration mode (see the user
1833 documentation for full details) as well as support for routing
1834 between different network fabrics. Lustre Networking Devices
1835 (LNDs) for the supported network fabrics have also been
1836 created for this new infrastructure.
1838 Severity : enhancement
1839 Description: Introduced Access control lists
1840 Details : clients can set ACLs on files and directories in order to have
1841 more fine-grained permissions than the standard Unix UGO+RWX.
1842 The MDS must be started with the "-o acl" mount option.
1844 Severity : enhancement
1845 Description: Introduced filesystem quotas
1846 Details : Administrators may now establish per-user quotas on the
1849 Severity : enhancement
1851 Description: Configuration change for the XT3
1852 The PTLLND is now used to run Lustre over Portals on the XT3
1853 The configure option(s) --with-cray-portals are no longer used.
1854 Rather --with-portals=<path-to-portals-includes> is used to
1855 enable building on the XT3. In addition to enable XT3 specific
1856 features the option --enable-cray-xt3 must be used.
1861 Description: Running on many-way SMP OSTs can trigger oops in llcd_send()
1862 Details : A race between allocating a new llcd and re-getting the llcd_lock
1863 allowed another thread to grab newly-allocated llcd.
1865 Severity : enhancement
1867 Description: 2.6 OST async journal commit and locking fix to improve performance
1868 Details : The filter_direct_io()+filter_commitrw_write() journal commits for
1869 2.6 kernels are now async as they already were in 2.4 kernels so
1870 that they can commit concurrently with the network bulk transfer.
1871 For block-allocated files the filter allocation semaphore is held
1872 to avoid filesystem fragmentation during allocation. BKL lock
1873 removed for 2.6 xattr operations where it is no longer needed.
1878 Description: lconf incorrectly determined whether two IP networks could talk
1879 Details : In some more complicated routing and multiple-network
1880 configurations, lconf will avoid trying to make a network
1881 connection to a disjoint part of the IP space. It was doing the
1882 math incorrectly for one set of cases.
1887 Description: Fix for potential infinite loop processing records in an llog.
1888 Details : If an llog record is corrupted/zeroed, it is possible to loop
1889 forever in llog_process(). Validate the llog record length
1890 and skip the remainder of the block on error.
1893 Frequency : occasional (liblustre only)
1895 Description: liblustre could not open files whose last component is a symlink
1896 Details : sysio_path_walk() would incorrectly pass the open intent to
1897 intermediate path components.
1900 Frequency : rare (liblustre only with non-standard tuning)
1901 Bugzilla : 7201 (7350)
1902 Description: Tuning the MDC DLM LRU size to zero triggers client LASSERT
1903 Details : llu_lookup_finish_locks() tries to set lock data on a lock
1904 after it has been released, only do this for referenced locks
1906 Severity : enhancement
1908 Description: specifying an (invalid) directory default stripe_size of -1
1909 would reset the directory default striping
1910 Details : stripe_size -1 was used internally to signal directory stripe
1911 removal, now use "all default" to signal dir stripe removal
1912 as a directory striping of "all default" is not useful
1915 Frequency : common for large clusters running liblustre clients
1917 Description: doing an ls when liblustre clients are running is slow
1918 Details : sending a glimpse AST to a liblustre client waits for every AST
1919 to time out, as liblustre clients will not respond. Since they
1920 cannot cache data we refresh the OST lock LVB from disk instead.
1922 Severity : enhancement
1924 Description: doing an ls at the same time as file IO can be slow
1925 Details : enqueue and other "small" requests can be blocked behind many
1926 large IO requests. Create a new OST IO portal for non-IO
1927 requests so they can be processed faster.
1930 Frequency : rare (only HPUX clients mounting unsupported re-exported NFS vol)
1932 Description: an HPUX NFS client would get -EACCESS when ftruncate()ing a newly
1933 created file with mode 000
1934 Details : the Linux NFS server relies on an MDS_OPEN_OWNEROVERRIDE hack to
1935 allow an ftruncate() as a non-root user to a file with mode 000.
1936 Lustre now respects this flag to disable mode checks when
1937 truncating a file owned by the user
1940 Frequency : liblustre-only, when liblustre client dies unexpectedly or becomes
1943 Description: Revoking locks from clients that went dead or catatonic might take
1945 Details : New lock flags FL_CANCEL_ON_BLOCK used by liblustre makes
1946 cancellation of such locks instant on servers without waiting for
1947 any reply from clients. Clients drops these locks when cancel
1948 notification from server is received without replying.
1951 Frequency : liblustre-only, when liblustre client dies or becomes busy
1953 Description: Doing ls on Linux clients can take a long time with active
1955 Details : Liblustre client cannot handle ASTs in timely manner, so avoid
1956 granting such locks to it in the first place if possible. Locks
1957 are taken by proxy on the OST during the read or write and
1958 dropped immediately afterward. Add connect flags handling, do
1959 not grant locks to liblustre clients for glimpse ASTs.
1961 Severity : enhancement
1963 Description: Improve read-ahead algorithm to avoid excessive IO for random reads
1964 Details : Existing read-ahead algorithm is tuned for the case of streamlined
1965 sequential reads and behaves badly with applications doing random
1966 reads. Improve it by reading ahead at least read region, and
1967 avoiding excessive large RPC for small reads.
1969 Severity : enhancement
1971 Description: Creating more than 1000 files for a single job may cause a load
1972 imbalance on the OSTs if there are also a large number of OSTs.
1973 Details : qos_prep_create() uses an OST index reseed value that is an
1974 even multiple of the number of available OSTs so that if the
1975 reseed happens in the middle of the object allocation it will
1976 still utilize the OSTs as uniformly as possible.
1981 Description: OST or MDS may oops in ping_evictor_main()
1982 Details : ping_evictor_main() drops obd_dev_lock if deleting a stale export
1983 but doesn't restart at beginning of obd_exports_timed list
1986 Severity : enhancement
1988 Description: improve by-nid export eviction on the MDS and OST
1989 Details : allow multiple exports with the same NID to be evicted at one
1990 time without re-searching the exports list.
1993 Frequency : rare, only with supplementary groups enabled on SMP 2.6 kernels
1995 Description: MDS may oops in groups_free()
1996 Details : in rare race conditions a newly allocated group_info struct is
1997 freed again, and this can be NULL. The 2.4 compatibility code
1998 for groups_free() checked for a NULL pointer, but 2.6 did not.
2001 Frequency : common for liblustre clients doing little filesystem IO
2002 Bugzilla : 9352, 7313
2003 Description: server may evict liblustre clients accessing contended locks
2004 Details : if a client is granted a lock or receives a completion AST
2005 with a blocking AST already set it would not reply to the AST
2006 for LDLM_FL_CANCEL_ON_BLOCK locks. It now replies to such ASTs.
2009 Frequency : lfs setstripe, only systems with more than 160 OSTs
2011 Description: unable to set striping with a starting offset beyond OST 160
2012 Details : llapi_create_file() incorrectly limited the starting stripe
2013 index to the maximum single-file stripe count.
2016 Frequency : LDAP users only
2018 Description: lconf did not handle in-kernel recovery with LDAP properly
2019 Details : lconf/LustreDB get_refs() is searching the wrong namespace
2021 Severity : enhancement
2023 Description: bind OST threads to NUMA nodes to improve performance
2024 Details : all OST threads are uniformly bound to CPUs on a single NUMA
2025 node and do their allocations there to localize memory access
2027 Severity : enhancement
2029 Description: llmount can determine client NID directly from Myrinet (GM)
2030 Details : the client NID code from gmnalnid was moved directly into
2031 llmount, removing the need to use this or specifying the
2032 client NID explicitly when mounting GM clients with zeroconf
2035 Frequency : if client is started with down MDS
2037 Description: if client is started with down MDS mount hangs in ptlrpc_queue_wait
2038 Details : Having an LWI_INTR() wait event (interruptible, but no timeout)
2039 will wait indefinitely in ptlrpc_queue_wait->l_wait_event() after
2040 ptlrpc_import_delayed_req() because we didn't check if the
2041 request was interrupted, and we also didn't break out of the
2042 event loop if there was no timeout
2047 Description: data loss during non-page-aligned writes to a single file from
2048 both multiple nodes and multiple threads on one node at same time
2049 Details : updates to KMS and lsm weren't protected by common lock. Resulting
2050 inconsistency led to false short-reads, that were cached and later
2051 used by ->prepare_write() to fill in partially written page,
2052 leading to data loss.
2055 Frequency : always, if lconf --abort_recovery used
2057 Description: lconf --abort_recovery fails with 'Operation not supported'
2058 Details : lconf was attempting to abort recovery on the MDT device and not
2061 Severity : enhancement
2063 Description: remove cleanup logs
2064 Details : replace lconf-generated cleanup logs with lustre internal
2065 cleanup routines. Eliminates the need for client-cleanup and
2068 Severity : enhancement
2070 Description: add support for EAs (user and system) on lustre filesystems
2071 Details : it is now possible to store extended attributes in the Lustre
2072 client filesystem, and with the user_xattr mount option it
2073 is possible to allow users to store EAs on their files also
2075 Severity : enhancement
2077 Description: Add possibility (config option) to show minimal available OST free
2079 Details : When compiled with --enable-mindf configure option, statfs(2)
2080 (and so, df) will return least minimal free space available from
2081 all OSTs as amount of free space on FS, instead of summary of
2082 free spaces of all OSTs.
2084 Severity : enhancement
2086 Description: do not expand extent locks acquired on OST-side
2087 Details : Modify ldlm_extent_policy() to not expand local locks, acquired
2088 by server: they are not cached anyway.
2091 Frequency : when mmap is used/binaries executed from Lustre
2093 Description: Unmmap pages before throwing them away from read cache.
2094 Details : llap_shrink cache now attempts to unmap pages before discarding
2095 them (if unmapping failed - do not discard). SLES9 kernel has
2096 extra checks that trigger if this unmapping is not done first.
2101 Description: lconf didn't resolve symlinks before checking to see whether a
2102 given mountpoint was already in use
2105 Frequency : when migrating failover services
2106 Bugzilla : 6395, 9514
2107 Description: When migrating a subset of services from a node (e.g. failback
2108 from a failover service node) the remaining services would
2109 time out and evict clients.
2110 Details : lconf --force (implied by --failover) sets the global obd_timeout
2111 to 5 seconds in order to quickly disconnect, but this caused
2112 other RPCs to time out too quickly. Do not change the global
2113 obd_timeout for force cleanup, only set it for DISCONNECT RPCs.
2115 Severity : enhancement
2116 Frequency : if MDS is started with down OST
2117 Bugzilla : 9439,5706
2118 Description: Allow startup/shutdown of an MDS without depending on the
2119 availability of the OSTs.
2120 Details : Asynchronously call mds_lov_synchronize during MDS startup.
2121 Add appropriate locking and lov-osc refcounts for safe
2122 cleaning. Add osc abort_inflight calls in case the
2123 synchronize never started.
2126 Frequency : occasional (Cray XT3 only)
2128 Description: root not authorized to access files in CRAY_PORTALS environment
2129 Details : The client process capabilities were not honoured on the MDS in
2130 a CRAY_PORTALS/CRAY_XT3 environment. If the file had previously
2131 been accessed by an authorized user then root was able to access
2132 the file on the local client also. The root user capabilities
2133 are now allowed on the MDS, as this environment has secure UID.
2136 Frequency : occasional
2138 Description: ldiskfs "too long searching" message happens too often
2139 Details : A debugging message (otherwise harmless) prints too often on
2140 the OST console. This has been reduced to only happen when
2141 there are fragmentation problems on the filesystem.
2146 Description: Division by zero in statfs when all OSCs are inactive
2147 Details : lov_get_stripecnt() returns zero due to incorrect order of checks,
2148 lov_statfs divides by value returned by lov_get_stripecnt().
2152 Bugzilla : 9489, 3273
2153 Description: First write from each client to each OST was only 4kB in size,
2154 to initialize client writeback cache, which caused sub-optimal
2155 RPCs and poor layout on disk for the first writen file.
2156 Details : Clients now request an initial cache grant at (re)connect time
2157 and so that they can start streaming writes to the cache right
2158 away and always do full-sized RPCs if there is enough data.
2159 If the OST is rebooted the client also re-establishes its grant
2160 so that client cached writes will be honoured under the grant.
2165 Description: Slow ls (and stat(2) syscall) on files residing on IO-loaded OSTs
2166 Details : Now I/O RPCs go to different portal number and (presumably) fast
2167 lock requests (and glimses) and other RPCs get their own service
2168 threads pool that should be able to service those RPCs
2171 Severity : enhancement
2173 Description: Ability to exchange lustre version between client and servers and
2174 issue warnings at client side if client is too old. Also for
2175 liblustre clients there is ability to refuse connection of too old
2177 Details : New 'version' field is added to connect data structure that is
2178 filled with version info. That info is later checked by server and
2182 Frequency : rare, liblustre only.
2183 Bugzilla : 9296, 9581
2184 Description: Two simultaneous writes from liblustre at offset within same page
2185 might proceed at the same time overwriting eachother with stale
2187 Details : I/O lock withing llu_file_prwv was released too early, before data
2188 actually was hitting the wire. Extended lock-holding time until
2189 server acknowledges receiving data.
2192 Frequency : extremely rare. Never observed in practice.
2194 Description: avoid generating lustre_handle cookie of 0.
2195 Details : class_handle_hash() generates handle cookies by incrementing
2196 global counter, and can hit 0 occasionaly (this is unlikely, but
2197 not impossible, because initial value of cookie counter is
2198 selected randonly). Value of 0 is used as a sentinel meaning
2199 "unassigned handle" --- avoid it. Also coalesce two critical
2200 sections in this function into one.
2202 Severity : enhancement
2204 Description: allow liblustre clients to delegate truncate locking to OST
2205 Details : To avoid overhead of locking, liblustre client instructs OST to
2206 take extent lock in ost_punch() on client's behalf. New connection
2207 flag is added to handle backward compatibility.
2209 Severity : enhancement
2210 Bugzilla : 4928, 7341, 9758
2211 Description: allow number of OST service threads to be specified
2212 Details : a module parameter allows the number of OST service threads
2213 to be specified via "options ost ost_num_threads={N}" in the
2214 OSS's /etc/modules.conf or /etc/modprobe.conf.
2218 Bugzilla : 6146, 9635, 9895
2219 Description: servers crash with bad pointer in target_handle_connect()
2220 Details : In rare cases when a client is reconnecting it was possible that
2221 the connection request was the last reference for that export.
2222 We would temporarily drop the export reference and get a new
2223 one, but this may have been the last reference and the export
2224 was just destroyed. Get new reference before dropping old one.
2226 Severity : enhancement
2227 Frequency : if client is started with failover MDS
2229 Description: Allow multiple MDS hostnames in the mount command
2230 Details : Try to read the configuration from all specified MDS
2231 hostnames during a client mount in case the "primary"
2234 Severity : enhancement
2236 Description: Stop sending data to evicted clients as soon as possible.
2237 Details : Check if the client we are about to send or are sending data to
2238 was evicted already. (Check is done every second of waiting,
2239 for which l_wait_event interface was extended to allow checking
2240 of exit condition at specified intervals).
2243 Frequency : rare, normally only when NFS exporting is done from client
2245 Description: 'bad disk LOV MAGIC: 0x00000000' error when chown'ing files
2247 Details : Make mds_get_md() recognise empty md case and set lmm size to 0.
2250 Frequency : always, if srand() is called before liblustre initialization
2252 Description: Liblustre uses system PRNG disturbing its usage by user application
2253 Details : Introduce internal to lustre fast and high-quality PRNG for
2254 lustre usage and make liblustre and some other places in generic
2255 lustre code to use it.
2257 Severity : enhancement
2258 Bugzilla : 9477, 9557, 9870
2259 Description: Verify that the MDS configuration logs are updated when xml is
2260 Details : Check if the .xml configuration logs are newer than the config
2261 logs stored on the MDS and report an error if this is the case.
2262 Request --write-conf, or allow starting with --old_conf.
2264 Severity : enhancement
2266 Description: Handle symlinks in the path when checking if Lustre is mounted.
2267 Details : Resolve intermediate symlinks when checking if a client has
2268 mounted a filesystem to avoid duplicate client mounts.
2273 Description: lconf can hit an error exception but still return success.
2274 Details : The lconf command catches the Command error exception at the top
2275 level script context and will exit with the associated exit
2276 status, but doesn't ensure that this exit status is non-zero.
2281 Description: failure of ptlrpc thread startup can cause oops
2282 Details : Starting a ptlrpc service thread can fail if there are a large
2283 number of threads or the server memory is very fragmented.
2284 Handle this without oopsing.
2287 Frequency : always, only if liblustre and non-default acceptor port was used
2289 Description: liblustre cannot connect to servers with non-default acceptor port
2290 Details : tcpnal_set_default_params() was not called and was therefore
2291 ignoring the environment varaible TCPNAL_PORT, as well as other
2292 TCPNAL_ environment variables
2297 Description: two objects could be created on the same OST for a single file
2298 Details : If an OST is down, in some cases it was possible to create two
2299 objects on a single OST for a single file. No problems other
2300 than potential performance impact and spurious error messages.
2304 Bugzilla : 5681, 9562
2305 Description: Client may oops in ll_unhash_aliases
2306 Details : Client dcache may become inconsistent in race condition.
2307 In some cases "getcwd" can fail if the current directory is
2313 Description: Inode refcounting problems in NFS export code
2314 Details : link_raw functions used to call d_instantiate without obtaining
2315 extra inode reference first.
2319 Bugzilla : 9942, 9903
2320 Description: Referencing freed requests leading to crash, memleaks with NFS.
2321 Details : We used to require that call to ll_revalidate_it was always
2322 followed by ll_lookup_it. Also with revalidate_special() it is
2323 possible to call ll_revalidate_it() twice for the same dentry
2324 even if first occurence returned success. This fix changes semantic
2325 between DISP_ENQ_COMPLETE disposition flag to mean there is extra
2326 reference on a request referred from the intent.
2327 ll_intent_release() then releases such a request.
2330 Frequency : rare, normally benchmark loads only
2332 Description: unlinked inodes were kept in memory on the client
2333 Details : If a client is repeatedly creating and unlinking files it
2334 can accumulate a lot of stale inodes in the inode slab cache.
2335 If there is no other client load running this can cause the
2336 client node to run out of memory. Instead flush old inodes
2337 from client cache that have the same inode number as a new inode.
2340 Frequency : SLES9 2.6.5 kernel and long filenames only
2341 Bugzilla : 9969, 10379
2342 Description: utime reports stale NFS file handle
2343 Details : SLES9 uses out-of-dentry names in some cases, which confused
2344 the lustre dentry revalidation. Change it to always use the
2348 Frequency : rare, unless heavy write-truncate concurrency is continuous
2349 Bugzilla : 4180, 6984, 7171, 9963, 9331
2350 Description: OST becomes very slow and/or deadlocked during object unlink
2351 Details : filter_destroy() was holding onto the parent directory lock
2352 while truncating+unlinking objects. For very large objects this
2353 may block other threads for a long time and slow overall OST
2354 responsiveness. It may also be possible to get a lock ordering
2355 deadlock in this case, or run out of journal credits because of
2356 the combined truncate+unlink. Solution is to do object truncate
2357 first in one transaction without parent lock, and then do the
2358 final unlink in a new transaction with the parent lock. This
2359 reduces the lock hold time dramatically.
2362 Frequency : rare, 2.4 kernels only
2364 Description: MDS or OST cleanup may trip kernel BUG when dropping kernel lock
2365 Details : mds_cleanup() and filter_cleanup() need to drop the kernel lock
2366 before unmounting their filesystem in order to avoid deadlock.
2367 The kernel_locked() function in 2.4 kernels only checks whether
2368 the kernel lock is held, not whether it is this process that is
2369 holding it as 2.6 kernels do.
2374 Description: MDS or OST may oops/LBUG if a client is connecting multiple times
2375 Details : The client ptlrpc code may be trying to reconnect to a down
2376 server before a previous connection attempt has timed out.
2377 Increase the reconnect interval to be longer than the connection
2378 timeout interval to avoid sending duplicate connections to
2382 Frequency : echo_client brw_test command
2384 Description: fix echo_client to work with OST preallocated code
2385 Details : OST preallocation code (5137) didn't take echo_client IO path
2386 into account: echo_client calls filter methods outside of any
2387 OST thread and, hence, there is no per-thread preallocated
2388 pages and buffers to use. Solution: hijack pga pages for IO. As
2389 a byproduct, this avoids unnecessary data copying.
2393 Bugzilla : 3555, 5962, 6025, 6155, 6296, 9574
2394 Description: Client can oops in mdc_commit_close() after open replay
2395 Details : It was possible for the MDS to return an open request with no
2396 transaction number in mds_finish_transno() if the client was
2397 evicted, but without actually returning an error. Clients
2398 would later try to replay that open and may trip an assertion
2399 Simplify the client close codepath, and always return an error
2400 from the MDS in case the open is not successful.
2403 Frequency : rare, 2.6 OSTs only
2405 Description: OST may deadlock under high load on fragmented files
2406 Details : If there was a heavy load and highly-fragmented OST filesystems
2407 it was possible to have all the OST threads deadlock waiting on
2408 allocation of biovecs, because the biovecs were not released
2409 until the entire RPC IO was completed. Instead, release biovecs
2410 as soon as they are complete to ensure forward IO progress.
2412 Severity : enhancement
2414 Description: Support for specifying external journal device at mount
2415 Details : If an OST or MDS device is formatted with an external journal
2416 device, this device major/minor is stored in the ext3 superblock
2417 and may not be valid for failover. Allow detecting and
2418 specifying the external journal at mount time.
2423 Description: Mounting an MDS with pending unlinked files may cause oops
2424 Details : target_finish_recovery() calls mds_postrecov() which returned
2425 the number of orphans unlinked. mds_lov_connect->mds_postsetup()
2426 considers this an error and immediately begins cleaning up the
2427 lov, just after starting the mds_lov process
2429 Severity : enhancement
2431 Description: Implement 'lfs df' to report actual free space on per-OST basis
2432 Details : Add sub-command 'df' on 'lfs' to report the disk space usage of
2433 MDS/OSDs. Usage: lfs df [-i][-h]. Command Options: '-i' to report
2434 usage of objects; '-h' to report in human readable format.
2436 ------------------------------------------------------------------------------
2438 08-26-2005 Cluster File Systems, Inc. <info@clusterfs.com>
2445 Description: Mounting an ldiskfs file system with mballoc may crash OST node.
2446 Details : ldiskfs mballoc code may reference an uninitialized buddy struct
2447 at startup during orphan unlinking. Instead, skip buddy update
2448 before setup, as it will be regenerated after recovery is complete.
2453 Description: If an OST is inactive, its locks might reference stale inodes.
2454 Details : lov_change_cbdata() must iterate over all namespaces, even if
2455 they are inactive to clear inode references from the lock.
2457 Severity : enhancement
2458 Frequency : occasional, if non-standard max_dirty_mb used
2460 Description: Client will block write RPCs if not enough grant
2461 Details : If a client has max_dirty_mb smaller than max_rpcs_in_flight,
2462 then the client will block writes while waiting for another RPC
2463 to complete instead of consuming its dirty limit. With change
2464 we get improved performance when max_dirty_mb is small.
2466 Severity : enhancement
2467 Bugzilla : 3389, 6253
2468 Description: Add support for supplementary groups on the MDS.
2469 Details : The MDS has an upcall /proc/fs/lustre/mds/{mds}/group_upcall
2470 (set to /usr/sbin/l_getgroups if enabled) which will do MDS-side
2471 lookups for user supplementary groups into a cache.
2475 Description: O_CREAT|O_EXCL open flags in liblustre always return -EEXIST
2476 Details : Make libsysio to not enforce O_EXCL by clearing the flag,
2477 for liblustre O_EXCL is enforced by MDS.
2481 Description: readdir never returns NULL in liblustre.
2482 Details : Corrected llu_iop_getdirentries logic, to return offset of next
2483 dentry in struct dirent.
2487 Frequency : liblustre only, depends on application IO pattern
2488 Description: liblustre clients evicted if not contacting servers
2489 Details : Don't put liblustre clients into the ping_evictor list, so
2490 they will not be evicted by the pinger ever.
2492 Severity : enhancement
2494 Description: Add ability to evict clients by NID from MDS.
2495 Details : By echoing "nid:$NID" string into
2496 /proc/fs/lustre/mds/.../evict_client client with nid that equals to
2497 $NID would be instantly evicted from this MDS and from all active
2498 OSTs connected to it.
2502 Description: Do not query file size twice, somewhat slowing stat(2) calls.
2503 Details : lookup_it_finish() used to query file size from OSTs that was not
2508 Description: service threads change working directory to that of init
2509 Details : Starting lustre service threads may pin the working directory
2510 of the parent thread, making that filesystem busy. Threads
2511 now change to the working directory of init to avoid this.
2515 Frequency : during shutdown only
2516 Description: shutdown with a failed MDS or OST can cause unmount to hang
2517 Details : Don't resend DISCONNECT messages in ptlrpc_disconnect_import()
2522 Frequency : 2.6 only
2523 Description: chmod/chown may include an extra supplementary group
2524 Details : ll{,u}_mdc_pack_op_data() does not properly initialize the
2525 supplementary group and if none is specified this is used.
2528 Bugzilla : 5479 (6816)
2530 Description: Racing open + rm can assert client in mdc_set_open_replay_data()
2531 Details : If lookup is in progress on a file that is unlinked we might try
2532 to revalidate the inode and fail in revalidate after lookup is
2533 complete and ll_file_open() enqueues the open again but
2534 it_open_error() was not checking DISP_OPEN_OPEN errors correctly.
2537 Frequency : always, if lconf --abort_recovery used
2539 Description: lconf --abort_recovery fails with 'Operation not supported'
2540 Details : lconf was attempting to abort recovery on the MDT device and not
2543 ------------------------------------------------------------------------------
2545 2005-08-08 Cluster File Systems, Inc. <info@clusterfs.com>
2550 Frequency : rare (only unsupported configurations with a node running as an
2552 Bugzilla : 6514, 5137
2553 Description: Mounting a Lustre file system on a node running as an OST could
2555 Details : OSTs now preallocates memory needed to write out data at
2556 startup, instead of when needed, to avoid having to
2557 allocate memory in possibly low memory situations.
2558 Specifically, if the file system is mounted on on OST,
2559 memory pressure could force it to try to write out data,
2560 which it needed to allocate memory to do. Due to the low
2561 memory, it would be unable to do so and the node would
2562 become unresponsive.
2564 Severity : enhancement
2566 Description: Addition of lconf --service command line option
2567 Details : lconf now accepts a '--service <arg>' option, which is
2568 shorthand for 'lconf --group <arg> --select <arg>=<hostname>'
2570 Severity : enhancement
2572 Description: Failover mode is now the default for OSTs.
2573 Details : By default, OSTs will now run in failover mode. To return to
2574 the old behaviour, add '--failout' to the lmc line for OSTs.
2576 Severity : enhancement
2578 Description: Health checks are now provided for MDS and OSTs
2579 Details : Additional detailed health check information on MSD and OSTs
2580 is now provided through the procfs health_check value.
2583 Frequency : occasional, depends on IO load
2585 Description: Disk fragmentation on the OSTs could eventually cause slowdowns
2586 after numerous create/delete cycles
2587 Details : The ext3 inode allocation policy would not allocate new inodes
2588 very well on the OSTs because there are no new directories
2589 being created. Instead we look for groups with free space if
2590 the parent directories are nearly full.
2595 Description: Network or server problems during mount may cause partially
2596 mounted clients instead of returning an error.
2597 Details : The config llog parsing code may overwrite the error return
2598 code during mount error handling, returning success instead
2604 Description: MDS can fail to allocate large reply buffers
2605 Details : After long uptimes the MDS can fail to allocate large reply
2606 buffers (e.g. zconf client mount config records) due to memory
2607 fragmentation or consumption by the buffer cache. Preallocate
2608 some large reply buffers so that these replies can be sent even
2609 under memory pressure.
2613 Frequency : rare (liblustre)
2614 Description: fsx running with liblustre complained that using truncate() to
2615 extend the file doesn't work. This patch corrects that issue.
2616 Details : This is the liblustre equivalent of the fix for bug 6196. Fixes
2617 ATTR_SIZE and lsm use in llu_setattr_raw.
2621 Frequency : rare, only 2.6 kernels
2622 Description: Unusual file access patterns on the MDS may result in inode
2623 data being lost in very rare circumstances.
2624 Details : Bad interaction between the ea-in-inode patch and the "no-read"
2625 code in the 2.6 kernel caused the inode and/or EA data not to
2626 be read from disk, causing single-file corruption.
2630 Frequency : rare, only 2.6 filesystems using extents
2631 Description: Heavy concurrent write and delete load may cause data corruption.
2632 Details : It was possible under high-load situations to have an extent
2633 metadata block in the block device cache from a just-unlinked
2634 file overwrite a newly-allocated data block. We now unmap any
2635 metadata buffers that alias just-allocated data blocks.
2639 Frequency : filesystems with default stripe_count larger than 77
2640 Description: lconf+mke2fs fail when formatting filesystem with > 77 stripes
2641 Details : lconf specifies an inode size of 4096 bytes when the default
2642 stripe_count is larger than 77. This conflicts with the default
2643 inode density of 1 per 4096 bytes. Allocate smaller inodes in
2644 this case to avoid pinning too much memory for large EAs.
2646 ------------------------------------------------------------------------------
2648 2005-07-07 Cluster File Systems, Inc. <info@clusterfs.com>
2653 Frequency : rare (extremely heavy IO load with hundreds of clients)
2655 Description: Client is evicted, gets IO error writing to file
2656 Details : lock ordering changes for bug 5492 reintroduced bug 3267 and
2657 caused clients to be evicted for AST timeouts. The fixes in
2658 bug 5192 mean we no longer need to have such short AST timeouts
2659 so ldlm_timeout has been increased.
2662 Frequency : occasional during --force or --failover shutdown under load
2663 Bugzilla : 5949, 4834
2664 Description: Server oops/LBUG if stopped with --force or --failover under load
2665 Details : a collection of import/export refcount and cleanup ordering
2666 issues fixed for safer force cleanup
2669 Frequency : only filesystems larger than 120 OSTs
2670 Bugzilla : 5990, 6223
2671 Description: lfs getstripe would oops on a very large filesystem
2672 Details : lov_getconfig used kfree on vmalloc'd memory
2675 Frequency : only filesystems exporting via NFS to Solaris 10 clients
2676 Bugzilla : 6242, 6243
2677 Description: reading from files that had been truncated to a non-zero size
2678 but never opened returned no data
2679 Details : ll_file_read() reads zeros from no-object files to EOF
2684 Description: A bug in MDS/OSS recovery could cause the OSS to fail an assertion
2685 Details : There's little harm in aborting MDS/OSS recovery and letting it
2686 try again, so I removed the LASSERT and return an error instead.
2688 Severity : enhancement
2690 Description: New debugging infrastructure for tracking down data corruption
2691 Details : The I/O checksum code was replaced to: (a) control it at runtime,
2692 (b) cover more of the client-side code path, and (c) try to narrow
2693 down where problems occurred
2697 Bugzilla : 3819, 4364, 4397, 6313
2698 Description: Racing close and eviction MDS could cause assertion in mds_close
2699 Details : It was possible to get multiple mfd references during close and
2700 client eviction, leading to one thread referencing a freed mfd.
2702 Severity: : enhancement
2703 Bugzilla : 3262, 6359
2704 Description: Attempts to reconnect to servers are now more aggressive.
2705 Details : This builds on the enhanced upcall-less recovery that was added
2706 in 1.4.2. When trying to reconnect to servers, clients will
2707 now try each server in the failover group every 10 seconds. By
2708 default, clients would previously try one server every 25 seconds.
2713 Description: After recovery, certain operations trigger a failed
2714 assertion on a client.
2715 Details : Failing over an mds, using lconf -d --failover, while a
2716 client was doing a readdir() call would cause the client to
2717 LBUG after recovery completed and the readdir() was resent.
2719 Severity : enhancement
2721 Description: Default groups are now added by lconf
2722 Details : You can now run lconf --group <servicename> without having to
2723 manually add groups with lmc.
2726 Frequency : occasional
2728 Description: Nodes with an elan id of 0 trigger a failed assertion
2731 Frequency : always when accessing e.g. tty/console device nodes
2733 Description: tty and some other devices nodes cannot be used on lustre
2734 Details : file's private_data field is used by device data and lustre
2735 values in there got lost. New field was added to struct file to
2736 store fs-specific private data.
2739 Frequency : when exporting Lustre via NFS
2741 Description: NFSD failed occasionally when looking up a path component
2742 Details : NFSD is looking up ".." which was broken in ext3 directories
2743 that had grown large enough to become hashed.
2746 Frequency : Clusters with multiple interfaces not on the same subnet
2748 Description: Nodes will repeatedly try to reconnect to an interface which it
2749 cannot reach and report an error to the log.
2750 Details : Extra peer list entries will be created by lconf with some peers
2751 unreachable. lconf now validates the peer before adding it.
2754 Frequency : Only if a default stripe is set on the filesystem root.
2756 Description: Setting a default stripe on the filesystem root prevented the
2757 filesystem from being remounted.
2758 Details : The client was sending extra request flags in the root getattr
2759 request and did not allocate a reply buffer for the dir EA.
2762 Frequency : occasional, higher if lots of files are accessed by one client
2763 Bugzilla : 6159, 6097
2764 Description: Client trips assertion regarding lsm mismatch/magic
2765 Details : While revalidating inodes the VFS looks up inodes with ifind()
2766 and in rare cases can find an inode that is being freed.
2767 The ll_test_inode() code will free the lsm during ifind()
2768 when it finds an existing inode and then the VFS later attaches
2769 this free lsm to a new inode.
2773 Bugzilla : 6422, 7030
2774 Description: MDS deadlock between mkdir and client eviction
2775 Details : Creating a new file via mkdir or mknod (starting a transaction
2776 and getting the ns lock) can deadlock with client eviction
2777 (gets ns lock and trying to finish a synchronous transaction).
2780 Frequency : occasional
2781 Description: While starting a server, the fsfilt_ext3 module could not be
2783 Details : CFS's improved ext3 filesystem is named ldiskfs for 2.6
2784 kernels. Previously, lconf would still use the ext3 name
2785 when trying to load modules. Now, it will correctly use
2786 ext3 on 2.4 and ldiskfs on 2.6.
2788 Severity : enhancement
2789 Description: The default stripe count has been changed to 1
2790 Details : The interpretation of the default stripe count (0, to lfs
2791 or lmc) has been changed to mean striping across a single
2792 OST, rather than all available. For general usage we have
2793 found a stripe count of 1 or 2 works best.
2795 Severity : enhancement
2796 Description: Add support for compiling against Cray portals.
2797 Details : Conditional compiling for some areas that are different
2801 Frequency : occasional
2802 Bugzilla : 6409, 6834
2803 Description: Creating files with an explicit stripe count may lead to
2804 a failed assertion on the MDS
2805 Details : If some OSTs are full or unavailable, creating files may
2806 trigger a failed assertion on the MDS. Now, Lustre will
2807 try to use other servers or return an error to the
2811 Frequency : occasional
2813 Description: Multiple concurrent overlapping read+write on multiple SMP nodes
2814 caused lock timeout during readahead (since 1.4.2).
2815 Details : Processes doing readahead might match a lock that hasn't been
2816 granted yet if there are overlapping and conflicting lock
2817 requests. The readahead process waits on ungranted lock
2818 (original lock is CBPENDING), while OST waits for that process
2819 to cancel CBPENDING read lock and eventually evicts client.
2821 Severity : enhancement
2823 Description: Initial enabling of flock support for clients
2824 Details : Implements fcntl advisory locking and file status functions.
2825 This feature is provided as an optional mount flag (default
2826 off), and is NOT CURRENTLY SUPPORTED. Not all types of record
2827 locking are implemented yet, and those that are are not guaranteed
2828 to be completely correct in production environments.
2829 mount -t lustre -o [flock|noflock] ...
2832 Frequency : occasional
2834 Description: OSTs running 2.4 kernels but with extents enabled might trip an
2835 assertion in the ext3 JBD (journaling) layer.
2836 Details : The b_committed_data struct is protected by the big kernel lock
2837 in 2.4 kernels, serializing journal_commit_transaction() and
2838 ext3_get_block_handle->ext3_new_block->find_next_usable_block()
2839 access to this struct. In 2.6 kernels there is finer grained
2840 locking to improve SMP performance of the JBD layer.
2844 Description: Changes the "SCSI I/O Stats" kernel patch to default to "enabled"
2849 Description: merge and cleanup kernel patches.
2852 -----------------------------------------------------------------------------
2854 2005-05-05 Cluster File Systems, Inc. <info@clusterfs.com>
2856 NOTE: Lustre 1.4.2 uses an incompatible network protocol than previous
2857 versions of Lustre. Please update all servers and clients to
2858 version 1.4.2 or later at the same time. You must also run
2859 "lconf --write-conf {config}.xml" on the MDS while it is stopped
2860 to update the configuration logs.
2862 - fix for HPUX NFS client breakage when NFS exporting Lustre (5781)
2863 - mdc_enqueue does not need max_mds_easize request buffer on send (5707)
2864 - swab llog records of type '0' so we get proper header size/idx (5861)
2865 - send llog cancel req to DLM cancel portal instead of cb portal (5515)
2866 - fix rename of one directory over another leaking an inode (5953)
2867 - avoid SetPageDirty on 2.6 (5981)
2868 - don't re-add just-being-destroyed locks to the waiting list (5653)
2869 - when creating new directories, inherit the parent's custom
2870 striping settings if present parent (3048)
2871 - flush buffers from cache before direct IO in 2.6 obdfilter (4982)
2872 - don't hold i_size_sem in ll_nopage() and ll_ap_refresh_count (6077)
2873 - don't hold client locks on temporary worklist from l_lru (5666)
2874 - handle IO errors in 2.6 obdfilter bio completion routine (6046)
2875 - automatically evict dead clients (5921)
2876 - Update file size properly in create+truncate+fstat case (6196)
2877 - Do not unhash mountpoint dentries, do not allow removal of
2879 - Avoid lock ordering deadlock issue with write/truncate (6203,5654)
2880 - reserve enough journal credits in fsfilt_start_log for setattr (4554)
2881 - ldlm_enqueue freed-export error path would always LBUG (6149,6184)
2882 - don't reference lr_lvb_data until after we hold lr_lvb_sem (6170)
2883 - don't overwrite last_rcvd if there is a *_client_add() error (6086)
2884 - Correctly handle reads of files with no objects (6243)
2885 - lctl recover will also mark a device active if deactivate used (5933)
2887 - by default create 1 inode per 4kB space on MDS, per 16kB on OSTs
2888 - allow --write-conf on an MDS with different nettype than client (5619)
2889 - don't write config llogs to MDS for mounts not from that MDS (5617)
2890 - lconf should create multiple TCP connections from a client (5201)
2891 - init scripts are now turned off by default; run chkconfig --on
2892 lustre and chkconfig --on lustrefs to use them
2893 - upcalls are no longer needed for clients to recover to failover
2895 - add --abort-recovery option to lconf to abort recovery on device
2897 - add support for an arbitrary number of OSTs (3026)
2898 - Quota support protocol changes.
2899 - forward compatibility changes to wire structs (6007)
2900 - rmmod NALs that might be loaded because of /etc/modules.conf (6133)
2901 - support for mountfsoptions and clientoptions to the Lustre LDAP (5873)
2902 - improved "lustre status" script
2903 - initialize blocksize for non-regular files (6062)
2904 - added --disable-server and --disable-client configure options (5782)
2905 - introduce a lookup cache for lconf to avoid repeated DB scans (6204)
2906 - Vanilla 2.4.29 support
2907 - increase maximum number of obd devices to 520 (6242)
2908 - remove the tcp-zero-copy patch from the suse-2.4 series (5902)
2909 - Quadrics Elan drivers are now included for the RHEL 3 2.4.21 and
2910 SLES 9 2.6.5 kernels
2911 - limit stripes per file to 160 (the maximum EA size) (6093)
2913 2005-03-22 Cluster File Systems, Inc. <info@clusterfs.com>
2916 - don't LASSERT in ll_release on NULL lld with NFS export (4655, 5760)
2917 - hold NS lock when calling handle_ast_error->del_waiting_lock (5746)
2918 - fix setattr mtime regression from lovcleanup merge (4829, 5669)
2919 - workaround for 2.6 crash in ll_unhash_aliases (5687, 5210)
2920 - small ext3 extents cleanups and fixes (5733)
2921 - improved mballoc code, several small races and bugs fixed (5733, 5638)
2922 - kernel version 43 - fix remove_suid bugs in both 2.4 and 2.6 (5695)
2923 - avoid needless client->OST connect, fix handle mismatch (5317)
2924 - fix DLM error path that led to out-of-sync client, long delays (5779)
2925 - support common vfs-enforced mount options (nodev,nosuid,noexec) (5637)
2926 - fix several locking issues related to i_size (5492,5624,5654,5672)
2927 - don't move pending lock onto export if it is already evicted (5683)
2928 - fix kernel oops when creating .foo in unlinked directory (5548)
2929 - fix deadlock in obdfilter statistics vs. object create (5811)
2930 - use time_{before,after} to avoid timer jiffies wrap (5882)
2931 - shutdown --force/--failover stability (3607,3651,4797,5203,4834)
2932 - Do not leak request if server was not able to process it (5154)
2933 - If mds_open unable to find parent dir, make that negative lookup(5154)
2934 - don't create new directories with extent-mapping (5909, 5936)
2936 - fix lustre/lustrefs init scripts for SuSE (patch from Scali, 5702)
2937 - don't hold the pinger_sem in ptlrpc_pinger_sending_on_import
2938 - change obd_increase_kms to obd_adjust_kms (up or down) (5654)
2939 - lconf, lmc search both /usr/lib and /usr/lib64 for Python libs (5800)
2940 - support for RHEL4 kernel on i686 (5773)
2941 - provide error messages when incompatible logs are encountered (5898)
2943 2005-02-18 Cluster File Systems, Inc. <info@clusterfs.com>
2944 * version 1.4.0.10 (1.4.1 release candidate 1)
2946 - don't keep a lock reference when lock is not granted (4238)
2947 - unsafe list practices (rarely) led to infinite eviction loop (4908)
2948 - add per-fs limit of Lustre pages in page cache, avoid OOM (4699)
2949 - drop import inflight refcount on signal_completed_replay error (5255)
2950 - unlock page after async write error during send (3677)
2951 - handle missing objects in filter_preprw_read properly (5265)
2952 - no transno return for symlink open, don't save no-trasno open (3440)
2953 - don't try to complete elan receive that already failed (4012)
2954 - free RPC server reply state on error (5406)
2955 - clean up thread from ptlrpc_start_thread() on error (5160)
2956 - readahead could read extra page into cache that wasn't ejected (5388)
2957 - prevent races in class_attach/setup/cleanup/detach (5260)
2958 - don't dereference de->d_inode after l_dput of de (5458)
2959 - use "int" for stripe value returned from lock_to_stripe (5544)
2960 - mballoc allocation and error-checking fixes in 2.6 (5504)
2961 - block device patches to fix I/O request sizes in 2.6 (5482)
2962 - look up hostnames for IB nals (5602)
2963 - 2.6 changed lock ordering of 2 semaphores, caused deadlock (5654)
2964 - don't start multiple acceptors for the same port (5277)
2965 - fix incorrect LASSERT in mds_getattr_name (5635)
2966 - export a proc file for general "ping" checking (5628)
2967 - fix "lfs check" to not block when the MDS is down (5628)
2969 - service request history (4965)
2970 - put {ll,lov,osc}_async_page structs in a single slab (4699)
2971 - create an "evict_client" /proc entry on OSTs, like the MDS has
2972 - fix mount usage message, return errors per mount(8) (5168)
2973 - change grep [] to grep "[]" in tests so they work in more UMLs
2974 - fix ppc64/x86_64 spec to use %{_libdir} instead of /usr/lib (5389)
2975 - remove ancient LOV_MAGIC_V0 EA support (5047)
2976 - add "disk I/Os in flight" and "I/O req time" stats in obdfilter
2977 - align r/w RPCs to PTLRPC_MAX_BRW_SIZE boundary for performance (3451)
2978 - allow readahead allocations to fail when low on memory (5383)
2979 - mmap locking landed again, after considerable improvement (2828)
2980 - add get_hostaddr() to lustreDB.py for LDAP support (5459)
2982 2004-11-23 Cluster File Systems, Inc. <info@clusterfs.com>
2985 - send OST transaction number in read/write reply to free req (4966)
2986 - don't ASSERT in ptl_send_rpc() if we run out of memory (5119)
2987 - lock /proc/sys/portals/routes internal state, avoiding oops (4827)
2988 - the watchdog thread now runs as interruptible (5246)
2989 - flock/lockf fixes (but it's still disabled, pending 5135)
2990 - don't use EXT3 constants in llite code (5094)
2991 - memory shortage at startup could cause assertion (5176)
2993 - reorganization of lov code
2994 - single portals codebase
2996 - add extents/mballoc support (5025)
2997 - direct I/O reads in the obdfilter (4048)
2998 - kernel patches from LNXI for 2.6 (bluesmoke, perfctr, mtd, kexec)
3000 tbd Cluster File Systems, Inc. <info@clusterfs.com>
3003 - send OST transaction number in read/write reply to free req (4966)
3004 - don't ASSERT in ptl_send_rpc() if we run out of memory (5119)
3005 - lock /proc/sys/portals/routes internal state, avoiding oops (4827)
3006 - the watchdog thread now runs as interruptible (5246)
3007 - handle missing objects in filter_preprw_read properly (5265)
3008 - unsafe list practices (rarely) led to infinite eviction loop (4908)
3009 - drop import inflight refcount on signal_completed_replay error (5255)
3010 - unlock page after async write error during send (3677)
3011 - return original error code on reconstructed replies (3761)
3012 - no transno return for symlink open, don't save no-trasno open (3440)
3014 - add pid to ldlm debugging output (4922)
3015 - bump the watchdog timeouts -- we can't handle 30sec yet
3016 - extra debugging for orphan dentry/inode bug (5259)
3018 2004-11-16 Cluster File Systems, Inc. <info@clusterfs.com>
3021 - fix TCP_NODELAY bug, which caused extreme perf regression (5134)
3022 - allocate qswnal tx descriptors singly to avoid fragmentation (4504)
3023 - don't LBUG on obdo_alloc() failure, use OBD_SLAB_ALLOC() (4800)
3024 - fix NULL dereference in /proc/sys/portals/routes (4827)
3025 - allow failed mdc_close() operations to be interrupted (4561)
3026 - stop precreate on OST before MDS would time out on it (4778)
3027 - don't send partial-page writes before EOF from client (4410)
3028 - discard client grant for sub-page writes on large-page clients (4520)
3029 - don't free dentries not owned by NFS code, check generation (4806)
3030 - fix lsm leak if mds_create_objects() fails (4801)
3031 - limit debug_daemon file size, always print CERROR messages (4789)
3032 - use transno after validating reply (3892)
3033 - process timed out requests if import state changes (3754)
3034 - update mtime on OST during writes, return in glimpse (4829)
3035 - add mkfsoptions to LDAP (4679)
3036 - use ->max_readahead method instead of zapping global ra (5039)
3037 - don't interrupt __l_wait_event() during strace
3039 - add software watchdogs to catch hung threads quickly (4941)
3040 - make lustrefs init script start after nfs is mounted
3041 - fix CWARN/ERROR duplication (4930)
3042 - return async write errors to application if possible (2248)
3043 - add /proc/sys/portal/memused (bytes allocated by PORTALS_ALLOC)
3044 - print NAL number in %x format (4645)
3045 - update barely-supported suse-2.4.21-171 series (4842)
3046 - support for sles 9 %post scripts
3047 - support for building 2.6 kernel-source packages
3048 - support for sles km_* packages
3050 2004-10-07 Cluster File Systems, Inc. <info@clusterfs.com>
3053 - ignore -ENOENT errors in osc_destroy (3639)
3054 - notify osc create thread that OSC is being cleaned up (4600)
3055 - add nettype argument for llmount in #5d in conf-sanity.sh (3936)
3056 - reconstruct ost_handle() like mds_handle() (4657)
3057 - create a new thread to do import eviction to avoid deadlock (3969)
3058 - let lconf resolve symlinked-to devices (4629)
3059 - don't unlink "objects" from directory with default EA (4554)
3060 - hold socknal file ref over connect in case target is down (4394)
3061 - allow more than 32000 subdirectories in a single directory (3244)
3062 - fix blocks count for O_DIRECT writes (3751)
3063 - OST returns ENOSPC from object create when no space left (4539)
3064 - don't send truncate RPC if file size isn't changing (4410)
3065 - limit OSC precreate to 1/2 of value OST considers bogus (4778)
3066 - bind to privileged port in socknal and tcpnal (3689)
3068 - rate limit CERROR/CWARN console message to avoid overload (4519)
3069 - GETFILEINFO dir ioctl returns LOV EA + MDS stat in 1 call (3327)
3070 - basic mmap support (3918)
3071 - kernel patch series update from b1_4 (4711)
3073 2004-09-16 Cluster File Systems, Inc. <info@clusterfs.com>
3076 - avoid crash during MDS cleanup with OST shut down (2775)
3077 - fix loi_list_lock/oig_lock inversion on interrupted IO (4136)
3078 - don't use bad inodes on the MDS (3744)
3079 - dynamic object preallocation to improve recovery speed (4236)
3080 - don't hold spinlock over lock dumping or change debug flags (4401)
3081 - don't zero obd_dev when it is force cleaned (3651)
3082 - print grants to console if they go negative (4431)
3083 - "lctl deactivate" will stop automatic recovery attempts (3406)
3084 - look for existing locks in ldlm_handle_enqueue() (3764)
3085 - don't resolve lock handle twice in recovery avoiding race (4401)
3086 - revalidate should check working dir is a directory (4134)
3088 - don't always mark "slow" obdfilter messages as errors (4418)
3090 2004-08-24 Cluster File Systems, Inc. <info@clusterfs.com>
3093 - don't close LustreDB during write_conf until it is done (3860)
3094 - fix typo in lconf for_each_profile (3821)
3095 - allow dumping logs from multiple threads at one time (3820)
3096 - don't allow multiple threads in OSC recovery (3812)
3097 - fix debug_size parameters (3864)
3098 - fix mds_postrecov to initialize import for llog ctxt (3121)
3099 - replace config semaphore with spinlock (3306)
3100 - be sure to send a reply for a CANCEL rpc with bad export (3863)
3101 - don't allow enqueue to complete on a destroyed export (3822)
3102 - down write_lock before checking llog header bitmap (3825)
3103 - recover from lock replay timeout (3764)
3104 - up llog sem before sending rpc (3652)
3105 - reduce ns lock hold times when setting kms (3267)
3106 - change a dlm LBUG to LASSERTF, to maybe learn something (4228)
3107 - fix NULL deref and obd_dev leak on setup error (3312)
3108 - replace some LBUG about llog ops with error handling (3841)
3109 - don't match INVALID dentries from d_lookup and spin (3784)
3110 - hold dcache_lock while marking dentries INVALID and hashing (4255)
3111 - fix invalid assertion in ptlrpc_set_wait (3880)
3113 - add libwrap support for the TCP acceptor (3996)
3114 - add /proc/sys/portals/routes for non-root route listing (3994)
3115 - allow setting MDS UUID in .xml (2580)
3116 - print the stack of a process that LBUGs (4228)
3118 2004-07-14 Cluster File Systems, Inc. <info@clusterfs.com>
3121 - don't cleanup request in ll_file_open() on failed MDS open (3430)
3122 - make sure to unset replay flag from failed open requests (3440)
3123 - if default stripe count is 0, use OST count for inode size (3636)
3124 - update parent mtime/ctime on client for create/unlink (2611)
3125 - drop dentry ref in ext3_add_link from open_connect_dentry (3266)
3126 - free recovery state on server during a forced cleanup (3571)
3127 - unregister_reply for resent reqs (3063)
3128 - loop back devices mounting and status check on 2.6 (3563)
3129 - fix resource-creation race that can provoke i_size == 0 (3513)
3130 - don't try to use bad inodes returned from MDS/OST fs lookup (3688)
3131 - more debugging for page-accounting assertion (3746)
3132 - return -ENOENT instead of asserting if ost getattr+unlink race (3558)
3133 - avoid deadlock after precreation failure (3758)
3134 - fix race and lock order deadlock in orphan handling (3450, 3750)
3135 - add validity checks when grabbing inodes from l_ast_data (3599)
3137 - add /proc/.../recovery_status to obdfilter (3428)
3138 - lightweight CDEBUG infrastructure, debug daemon (3668)
3139 - change default OSC RPC parameters to be better on small clusters
3140 - turn off OST read cache for files smaller than 32MB
3141 - install man pages and include them in rpms (3100)
3142 - add new init script for (un)mounting lustre filesystems (2593)
3143 - run chkconfig in %post for init scripts (3701)
3144 - drop scimac NAL (unmaintained)
3146 2004-06-17 Cluster File Systems, Inc. <info@clusterfs.com>
3149 - clean kiobufs before and after use (3485)
3150 - strip trailing '/'s before comparing paths with /proc/mounts (3486)
3151 - remove assertions to work around "in-flight rpcs" recovery bug (3063)
3152 - change init script to fail more clearly if not run as root (1528)
3153 - allow clients to reconnect during replay (1742)
3154 - fix ns_lock/i_sem lock ordering deadlock for kms update (3477)
3155 - don't do DNS lookups on NIDs too small for IP addresses (3442)
3156 - re-awaken ptlrpcd if new requests arrive during check_set (3554)
3157 - fix cond_resched (3554)
3158 - only evict unfinished clients after recovery (3515)
3159 - allow bulk resend, prevent data loss (3570)
3160 - dynamic ptlrpc request buffer allocation (2102)
3161 - don't allow unlinking open directory if it isn't empty (2904)
3162 - set MDS/OST threads to umask 0 to not clobber client modes (3359)
3163 - remove extraneous obd dereference causing LASSERT failure (3334)
3164 - don't use get_cycles() when creating temp. files on the mds (3156)
3165 - hold i_sem when setting i_size in ll_extent_lock() (3564)
3166 - handle EEXIST for set-stripe, set proper directory name (3336)
3168 - servers can dump a log evicting a client - lustre.dump_on_timeout=1
3169 - fix ksocknal_fmb_callback() error messages (2918)
3171 2004-05-27 Cluster File Systems, Inc. <info@clusterfs.com>
3174 - don't copy lvb into (possibly NULL) reply on error (2983)
3175 - don't deref dentry after dput, don't free lvb on error (2922)
3176 - use the kms to determine writeback rpc length (2947)
3177 - increment oti_logcookies when osc is inactive (2948)
3178 - update client's i_blocks count via lvb messages (2543)
3179 - handle intent open/close of special files properly (1557)
3180 - mount MDS with errors=remount-ro, like obdfilter (2009)
3181 - initialize lock handle to avoid ASSERT on error cleanup (3057)
3182 - don't use cancelling-locks' kms values (2947)
3183 - use highest lock extent for kms, not last one (2925)
3184 - don't dereference ERR_PTR() dentry in error handling path (3107)
3185 - fix thread race in portals_debug_dumplog() (3122)
3186 - create lprocfs device entries at setup instead of at attach (1519)
3187 - common AST error handler, don't evict client on completion race (3145)
3188 - zero nameidata in detach_mnt in 2.6 (3118)
3189 - verify d_inode after revalidate_special is valid in 2.6 (3116)
3190 - use lustre_put_super() to handle zconf unmounts in 2.6 (3064)
3191 - initialize RPC timeout timer earlier for 2.6 (3219)
3192 - don't dereference NULL reply buffer if mdc_close was never sent (2410)
3193 - print nal/nid for unknown nid (3258)
3194 - additional checks for oscc recovery before doing precreate (3284)
3195 - fix ll_extent_lock() error return code for 64-bit systems (3043)
3196 - don't crash in mdc_close for bad permissions on open (3285)
3197 - zero i_rdev for non-device files (3147)
3198 - clear page->private before handing to FS, better assertion (3119)
3199 - tune the read pipeline (3236)
3200 - fix incorrect decref of invalidated dentry (2350)
3201 - provide read-ahead stats and refine rpc in flight stats (3328)
3202 - don't hold journal transaction open across create RPC (3313)
3203 - update atime on MDS at close time (3265)
3204 - close LDAP connection when recovering to avoid server load (3315)
3205 - update iopen-2.6 patch with fixes from 2399,2517,2904 (3301)
3206 - don't leak open file on MDS after open resend (3325)
3207 - serialize filter_precreate and filter_destroy_precreated (3329)
3208 - loop device shouldn't call sync_dev() for nul device (3092)
3209 - clear page cache after eviction (2766)
3210 - resynchronize MDS->OST in background (2824)
3211 - refuse to mount the same filesystem twice on same mountpoint (3394)
3212 - allow llmount to create routes for mounting behind routers (3320)
3213 - push lock cancellation to blocking thread for glimpse ASTs (3409)
3214 - don't call osc_set_data_with_check() for TEST_LOCK matches (3159)
3215 - fix rare problem with rename on htree directories (3417)
3217 - allow default OST striping configuration per directory (1414)
3218 - fix compilation for qswnal for 2.6 kernels (3125)
3219 - increase maximum number of MDS request buffers for large systems
3220 - change liblustreapi to be useful for external progs like lfsck (3098)
3221 - increase local configuration timeout for slow disks (3353)
3222 - allow configuring ldlm AST timeout - lustre.ldlm_timeout=<seconds>
3224 2004-03-22 Cluster File Systems, Inc. <info@clusterfs.com>
3227 - fixes for glimpse AST timeouts / incorrectly 0-sized files (2818)
3228 - don't overwrite extent policy data in reply if lock was blocked (2901)
3229 - drop filter export grants atomically with removal from device (2663)
3230 - del obd_self_export from work_list in class_disconnect_exports (2908)
3231 - don't LBUG if MDS recovery times out during orphan cleanup (2530)
3232 - swab reply message in mdc_close, other PPC fixes (2464)
3233 - fix destroying of named logs (2325)
3234 - overwrite old logs when running lconf --write_conf (2264)
3235 - bump LLOG_CHUNKSIZE to 8k to allow for larger clusters (2306)
3236 - fix race in target_handle_connect (2898)
3237 - mds_reint_create() should take same inode create lock (2926)
3238 - correct journal credits calculated for CANCEL_UNLINK_LOG (2931)
3239 - don't close files for self_export to avoid uninitialized obd (2936)
3240 - allow MDS with the same name as client node (2939)
3241 - hold dentry reference for closed log files for unlink (2325)
3242 - reserve space for all logs during transactions (2059)
3243 - don't evict page beyond end of stripe extent (2925)
3244 - don't oops on a deleted current working directory (2399)
3245 - handle hard links to targets without a parent properly (2517)
3246 - don't dereference NULL lock when racing during eviction (2867)
3247 - don't grow lock extents when lots of conflicting locks (2919)
3249 2004-03-04 Cluster File Systems, Inc. <info@clusterfs.com>
3252 - account for cache space usage on clients to avoid data loss (974)
3253 - lfsck support in lustre kernel code (2349)
3254 - reduce journal credits needed for BRW writes (2370)
3255 - orphan handling to avoid losing space on client/server crashes
3256 - ptlrpcd can be blocked, stopping ALL progress (2477)
3257 - use lock value blocks to assist in proper KMS, faster stat (1021)
3258 - takes i_sem instead of DLM locks internally on obdfilter (2720)
3259 - recovery for initial connections (2355)
3260 - fixes for mds_cleanup_orphans (1934)
3261 - abort_recovery crashes MDS in b_eq (mds_unlink_orphan) (2584)
3262 - block all file creations until orphan recovery completes (1901)
3263 - client remove rq_connection from request struct (2423)
3264 - conf-sanity test_5, proper cleanup in umount log not availale (2640)
3265 - recovery timer race (2670)
3266 - mdc_close recovey bug (2532)
3267 - ptlrpc cleanup bug (2710)
3268 - mds timeout on local locks (2588)
3269 - namespace lock held during RPCs (2431)
3270 - handle interrupted sync write properly (2503)
3271 - don't try to handle a message that hasn't been replied to (2699)
3272 - client assert failure during cleanup after abort recovery (2701)
3273 - leak mdc device after failed mount (2712)
3274 - ptlrpc_check_set allows timedout requests to complete (2714)
3275 - wait for inflight reqs when ptlrpcd finishes (2710)
3276 - make sure unregistered services are removed from the srv_list
3277 - reset bulk XID's when resending them (caught by 1138 test)
3278 - unregister_bulk after timeout
3279 - fix lconf error (2694)
3280 - handle write after unfinished setstripe, stripe-only getstripe (2388)
3281 - readahead locks pages, leaves pending causing memory pressure (2673)
3282 - increase OST request buffers to 4096 on large machines (2729)
3283 - fix up permission of existing directories in simple_mkdir (2661)
3284 - init deleted item, add assertions ptlrpc_abort_inflight() (2725)
3285 - don't assign transno to errored transactions (2742)
3286 - don't delete objects on OST if given a bogus objid from MDS (2751)
3287 - handle large client PAGE_SIZE readdir on small PAGE_SIZE MDS (2777)
3288 - if rq_no_resend, then timeout request after recovery (2432)
3289 - fix MDS llog_logid record size, 64-bit array alignment (2733)
3290 - don't call usermode_helper from ptlrpcd, DEFAULT upcall (2773)
3291 - put magic in mount.lustre data, check for bad/NULL mount data (2529)
3292 - MDS recovery shouldn't delete objects that it has given out (2730)
3293 - if enqueue arrives after completion, don't clobber LVB (2819)
3294 - don't unlock pages twice when trigger_group_io returns error (2814)
3295 - don't deref NULL rq_repmsg if ldlm_handle_enqueue failed (2822)
3296 - don't write pages to disk if there was an error (1450)
3297 - don't ping imports that have recovery disabled (2676)
3298 - take buffered bytes into account when balancing socknal conn (2817)
3299 - hold a DLM lock over readdir always, use truncate_inode_pages (2706)
3300 - reconnect unlink llog connection after MDS reconnects to OST (2816)
3301 - remove little-endian swabbing of llog records (1987)
3302 - set/limit i_blksize to LL_MAX_BLKSIZE on client (2884)
3303 - retry reposting request buffers if they fail (1191)
3304 - grow extent at grant time to avoid granting a revoked lock (2809)
3305 - lock revoke doesn't evict page if covered by a second lock (2765)
3306 - disable VM readahead to avoid reading outside lock extents (2805)
3308 - return LL_SUPER_MAGIC from statfs for the filesystem type (1972)
3309 - updated kernel patches for hp-2.4.20 kernel (2681)
3311 2004-02-07 Cluster File Systems, Inc. <info@clusterfs.com>
3314 - fix truncated write corruption (2366)
3315 - fix for failed assertion in iopen_connect_dentry (1792,2517)
3317 - don't flag the ptlrpcd thread with PF_MEMALLOC (2636)
3318 - ensure len(uuid) < 37 in lmc (1171)
3319 - fix ia64 OOPS in llog_test (2255)
3320 - zero end of page at obdfilter for partial page writes (2648)
3321 - don't leave stale dentries around after renames (bug 2428)
3322 - fix timeouts when evicting a client with a single lock held (2642)
3323 - set deadline for the initial HELLO message to drain (2634)
3324 - print out dotted-quad IP addresses in the socknal (2302)
3326 - additional debugging for MDS client eviction problem (2443)
3327 - fix mkfsoptions support for osts (2603, 2604)
3329 2004-01-27 Cluster File Systems, Inc. <info@clusterfs.com>
3332 - add series for the vanilla 2.6.0 kernel
3333 - add series for the vanilla 2.4.24 kernel
3334 - add series for a cray x86/64 UL kernel drop
3335 - fix xattr patches for the vanilla 2.4.19 series
3337 - generate true UUIDs in lmc (1171)
3338 - have portals stack dumping break in UML (2466)
3339 - avoid bad dchild deref; avoid inum lock w/o creation (2362)
3340 - allocate with _NOFS in ldlm to avoid deadlock (1933)
3341 - wake callback waiting threads on client eviction (2460)
3342 - Add --ptldebug and --subsystem to lmc (1719)
3343 - update assertion to allow safe interrupt allocation
3344 - set rq_no_resend for cancel requests (2432)
3345 - recalculate ptlrpcd timeout after resend (2494)
3346 - call vfs_rmdir when removing pending directories (2368)
3347 - fix renaming a file to itself (2429)
3348 - lmc creates a default one-stripe lov (2454)
3349 - expand procfs space to handle large clusters (2326)
3350 - increase UML stack to avoid overflow
3351 - update lconf's list of debug and subsystem masks
3352 - fix lfs find --obd (2510)
3353 - /proc tunable for disabling filter read caching (2591)
3354 - stop rpm packages from altering slapd.conf (2301)
3355 - disable nagle in the socknal under 0conf (2578)
3356 - choose mds inode size based on stripe count (2572)
3357 - fix kernel-source rpm problems (2516)
3359 - add --disable-doc to avoid pdf generation (2421)
3360 - update documentation, tests, type-os, comments
3361 - avoid format warnings on ia64
3362 - remove the TOE NAL
3363 - tiny code cleanups by removing unused fields
3365 2004-01-07 Cluster File Systems, Inc. <info@clusterfs.com>
3368 - fix obvious semaphore misuse in as-yet-unused setattr path (2348)
3369 - remove the most blatant lies from BUILDING file (2371)
3370 - change default debug level to reasonable production setting
3371 - reduce client side cache size to reduce cache flush time
3372 - reduce max RPCs in flight to avoid unnecessary file fragmentation
3373 - make TCP zerocopy and pinger support enabled by default (2476)
3374 - sync writes completed after process exits caused crashes (2319)
3375 - maintain correct mount count on the MDS (2356)
3376 - backout 1557, because 2316 wasn't really fixed
3377 - better file I/O statistics gathering in /proc
3378 - don't take unnecessary, deadlock-inducing bug in readpage (2383)
3379 - another kernel patch to fix zero-copy TCP function export
3380 - don't take duplicate lock when processing re-sent getattr (2420)
3381 - lctl uses obd_self_export instead of creating new conn (2353)
3382 - MDS/OST recovery case which requires object creation asserted (2425)
3383 - move lfs from /usr/sbin to /usr/bin in packages
3384 - fix race between mds_client_add and mds_client_free (2417)
3385 - use kmalloc instead of slabs in portals (2430)
3386 - don't create duplicate records when a failover MDS is present (2442)
3387 - remove unnecessary mount age check (2332)
3388 - don't remove directory inodes from locks prematurely (2451)
3389 - don't break if MDS service name is the same as hostname (2103)
3390 - fix races in client write RPC generation when cache full (2482)
3392 2003-12-13 Cluster File Systems, Inc. <info@clusterfs.com>
3395 - remove now-unused request->rq_obd (278)
3396 - if an allocation fails, print out how much memory we've used (1933)
3397 - use PORTAL_SLAB_ALLOC for structures, to get GFP_MEMALLOC (1933)
3398 - add the "configurable stack size" patch to most series files (1256)
3399 - ability to write large log records, for 100+ OST configs (2306)
3400 - fix NULL deref when filter_prep fails (2314)
3401 - fix operator precedence error in filter_sync
3402 - dynamic allocation of socknal TX descriptors (2315)
3403 - fix a missed case in the GFP_MEMALLOC patch, can cause deadlock (2310)
3404 - fix gcc 2.96 compilation problem in xattr kernel patch (2294)
3405 - ensure that CWARN messages in Portals always get to the syslog
3406 - __init/__exit are not for prototype decls (ldlm_init/exit)
3407 - x86-64 compile warning fixes
3408 - fix gateway LMC keyword conflict (2318)
3409 - fix MDS lock inversions in getattr/reint paths (1844)
3410 - fix a rare lock re-ordering bug, which caused deadlock (2322)
3411 - fix i_sem/journal inversion in fsfilt_ext3_write_record (2306)
3412 - DLM race condition prevented some lock evictions (2328)
3413 - ENOMEM detection and retry on socknal sends (2230)
3414 - use GFP_NOFS throughout Lustre, to combat ENOMEM (2230)
3415 - move osc_rpcd into ptlrpc, for use in MDC and others (2329)
3416 - protect MDS inode fsdata with stronger locking; fixes assertion (2313)
3417 - better error messages when a client is rejected during recovery (1505)
3418 - avoid cancelling locks which were never granted, after failure (2330)
3419 - fix i_sem/journal inversion in mds_client_add (2333)
3420 - fix truncate/getattr lock cycle deadlock (2334)
3421 - use rpcd to send close; allows resend after timeout, avoid leak (1897)
3422 - fix two rare exit paths which could leak an l_lock() ref (2321)
3423 - fencepost error in MDS/OST orphan recovery (2226)
3424 - make log record alignment 8 bytes (1988)
3425 - lstripe now fails when requested offset > ost_count (2237)
3426 - ensure that all kernel series have a complete list.h (1607)
3427 - fix crashes in special-file operations (2316)
3428 - lctl create/brw OID mismatch, caused by obsolete filter loop (2339)
3430 - allow configurable automake binary, for testing new versions
3431 - small update to the lfs documentation
3433 2003-12-03 Cluster File Systems, Inc. <info@clusterfs.com>
3435 * fix negative export reference count in fsfilt_sync (2312)
3437 2003-12-01 Cluster File Systems, Inc. <info@clusterfs.com>
3438 * release candidate 0.9.1
3440 - orphans are moved into the PENDING directory for possible recovery
3441 - replayed opens now open by fid for orphan/rename safety (1042)
3442 - last close of an orphan inode generates a transno (683)
3443 - chdir() and mount() now pin the directory entry (1020)
3444 - avoid CERROR in normal ll_setattr_raw() error case (1500)
3445 - discard very old requests without processing them (1502)
3446 - remove some common, well-understood CERRORs (1505)
3447 - require O_DIRECT I/O to be page-sized to workaround IA64 crash (1609)
3448 - clear "grant" flags in OST replies until OST grant code lands (1644)
3449 - fix read performance by not clobbering i_blksize on client (1598)
3450 - fix __ldlm_handle2lock oops by not dereferencing lock after PUT (1625)
3451 - make LRU size a /proc tunable, clears locks when reduced (707)
3452 - fix some lprocfs rot that prevented ptlbd from loading (1732)
3453 - server locks take references on exports now (1558)
3454 - build fixes for 2.4.20-rh trees (1663)
3455 - return an error from lov_create if all OSCs are inactive (1751)
3456 - fix import levels when a reconnect happens without a timeout (1597)
3457 - exit early from mds_open if we get a lookup error (1749)
3458 - partial page read at EOF wouldn't wait for disk before sending (1642)
3459 - avoid NULL deref in obdfilter when reading page past EOF (1592)
3460 - avoid LASSERT in ll_intent_lock if server failed very early (1090)
3461 - fix LBUG in ll_it_open_error with rc = -2 (1861)
3462 - write/truncate lock inversion (1639)
3463 - Don't auto-load obdclass, portals modules during cleanup (1495)
3464 - fix timestamps from jumping to "now" (1763)
3465 - extra journal assertions (1648)
3466 - add an extra multiunlink test (1771)
3467 - fix read_record/write_record API (1776)
3468 - fix leak of offset_extent, possible incorrect i_size later (1772)
3469 - fix lasserts in mis-matched transnos during open-unlink testing (1541)
3470 - Debugging for the kqswnal_get_idle_tx problems (1820)
3471 - Allow recovery to be attempted multiple times (1536)
3472 - Write out MDS last_rcvd file after it is first created (1600)
3473 - Fix tx_descriptor leak in failed transmit situations (1827)
3474 - ext3 journaling fixes for assertion failure after IO error (1871)
3475 - class_export_put() on freed export after completion AST error (1896)
3476 - Fix revalidate looping in VFS (1322)
3477 - Don't access a freed export during MDS_REINT timeout (1521)
3478 - Add open-unlink recovery support on the MDS (1673,1764)
3479 - Return an error if no MDS data was read from last_rcvd (1946)
3480 - Fix for lookup "." or ".." crash on error (1932,1931,1935)
3481 - Don't setup a disk device that doesn't match exported UUID (317)
3482 - Reduce bulk RPC timeout to avoid cascading client/OST failures (1845)
3483 - avoid committing NULL handle in force close
3484 - local.sh is now a one-stripe LOV configuration
3485 - POSIX utime.4 -EPERM on FIFO not owned by user (56)
3486 - fix ext3 htree duplicate directory entry corruption (1516)
3487 - POSIX creat.13, fstat.1, open.18, stat.3 new file atime/mtime (2020)
3488 - update to new LOV EA format (2097)
3489 - interoperability for different PAGE_SIZE/wordsize (686,1821,1343,2042)
3491 2003-06-15 Phil Schwan <phil@clusterfs.com>
3494 - imports and exports cleanup too early, need refcounts (349, 879, 1045)
3495 - per-import/export recovery handling (958, 931, 959)
3496 - multiple last-rcvd slots, for serving multiple FSes (949)
3497 - connections are again shared between multiple imp/exports (963, 964)
3498 - "umount -f" would hang if any requests needed to be sent (393, 978)
3499 - avoid pinning large req buffer by copying for queued messages (989)
3500 - add "uuid" to "lctl device" command to help upcalls (991)
3501 - "open" RPCs with transnos would confuse recovery counters (1037)
3502 - do proper endian conversion of all wire messages (288, 340, 891)
3503 - remove OST bulk get LBUGs, fix ost_brw_write cleanup (1126)
3504 - call waiting locks callback from LDLM recovery thread (1127, 1151)
3505 - fix ptlrpc_connection leak in target_handle_connect (1174)
3506 - fix import refcounting bug in OST and MDS cleanup (1134)
3507 - if an invalid-at-open-time OSC returned before close(), LBUG (1150)
3508 - fix very unlikely obd_types race condition (501)
3509 - remove osc_open hack for echo_client (1187)
3510 - we leaked exports/dlmimps for forcibly disconnected clients (1143)
3511 - a failure in read_inode2 leads to deadlock (1139)
3512 - cancel ack-locks as soon as transaction is committed (1072)
3513 - fix major leaks and crashes in the bulk I/O path (937, 1057)
3514 - make sure to commitrw after any preprw to avoid deadlock (1162)
3515 - failing to execute a file in a lustre FS would lock inode (1203)
3516 - small DEBUG_REQ fix to avoid dereferencing a NULL (1227)
3517 - don't ASSERT while cleaning up an incompletely-setup obd (1248)
3518 - obd_uuid2tgt would walk off the end of the list (1255)
3519 - on IA64 the osc would give portals incorrect bulk size (1258)
3520 - fix debug daemon ioctl interface; allows daemon on ia64 (1274)
3521 - fix lock inversion caused by new llite matching code (1282)
3522 - limit the number of dirty pages on a client to 10MB (1286)
3523 - timed out locks were not being corrected cancelled (1289)
3524 - fix O_DIRECT above 4GB on IA-32 (1292)
3525 * major user-visible changes
3526 - fail out/fail over policy now controlled by the upcall (993)
3528 - add OBD_PING to check server availability and failure (954)
3529 - lustre messages are now sent in sending host order (288, 340, 891)
3530 - add eadatalen to MDS getattr reply (340)
3531 - OST read replies may contain second buffer, with per-page status (593)
3533 2003-03-11 Phil Schwan <phil@clusterfs.com>
3536 - LDLM_DEBUG macro fix, for gcc 3.2 (850)
3537 - failed open()s could cause deadlock; fixed (867, 869)
3538 - stop cancelling OST locks when files are closed (481)
3539 - overlapping XID spaces caused network corruption (851, 853)
3540 - fix unsafe fsfilt counter arithmetic; change to atomic_t
3541 - setattr_raw added, to do single-RPC, server-side setattrs
3542 - lmc/lconf syntax change for OST UUIDs
3543 - fix crashy race condition between ptlrpc_free_req and osc_close
3544 - don't use request in mdc_enqueue if we hit a timeout (889)
3545 - don't set the inode i_size for regular files from the MDS (896)
3546 - handle out of order completion AST (842)
3547 - don't LBUG if a lock request times out after receiving AST (913)
3548 - avoid d_rehash race in ll_find_alias by rehashing inside dcache_lock
3549 - if a bad lock AST arrives, send an error instead of dropping entirely
3550 - return 0 from revalidate2 if ll_intent_lock returns -EINTR (912)
3551 - fix leak in bulk IO when only partially completed (899, 900, 926)
3552 - fix O_DIRECT for ia64 (55)
3553 - (almost) eliminate Lustre-kernel-thread effects on load average (722)
3554 - C-z after timeout could hang a process forever; fixed (977)
3556 - client-side I/O cache (678, 924, 929, 941, 970)
3558 - READPAGE and SETATTRs which don't take server-side locks get
3561 2003-02-11 Phil Schwan <phil@clusterfs.com>
3564 - Fix ldlm_lock_match on the MDS to avoid matching remote locks (592)
3565 - Fix fsfilt_extN_readpage() to read a full page of directory
3566 entries, or fake the remainder if PAGE_SIZE != blocksize (500)
3567 - Avoid extra mdc_getattr() in ll_intent_lock when possible (534, 604)
3568 - Fix imbalanced LOV object allocation and out-of-bound access (469)
3569 - Most intent operations were removed, in favour of a new RPC mode
3570 that does a single RPC to the server and bypasses most of the VFS
3571 - All LDLM resource ID arrays were removed in favour of ldlm_res_id
3572 - Aggressively cancel local locks on DLM servers
3573 - mds_reint_unlink sends EA to the client if it's the last nlink.
3574 client uses that EA to unlink OST objects.
3575 - mds_reint_{rename,unlink,link} were rewritten to take ordered locks
3576 - recursive symlinks were fixed (439)
3577 - fixed NULL deref in DEBUG_REQ
3578 - filter_update_lastobjid no longer calls sync, which annoyed extN
3579 - fixed multi-client small-writes to a single file problem (445)
3580 - fixed mtime updates during file writes (607)
3581 - fixed vector writes on obdfilter causing problems when ENOSPC (670)
3582 - fixed bug in obd_brw_read/write() (under guise of testing 367)
3583 - fixed Linux OST size reporting problem (444, 656)
3584 - OST now updates object mtime with writes or setattr (607, 619)
3585 - client verifies file size before zeroing page past EOF (445)
3586 - OST now writes last allocated objid to disk with allocation (108)
3587 - LOV on echo now works (409)
3589 - mds_reint_unlink sends a new buffer, with the EA included. this
3590 buffer is only valid if body->valid & OBD_MD_FLEASIZE, which is only
3591 set if a regular file was being unlinked, and it was the last link
3592 - use PtlGet from the target for bulk writes (315)
3593 - OST now updates object mtime with writes or setattr (607, 619)
3594 - LDLM now has a grant-time callback to revalidate locked items, if
3596 - Many MDS operations were reorganized to combat race conditions
3598 - Merge b_intel branch (updated lprocfs code) - now at /proc/fs/lustre
3599 - configure check to avoid gcc version 2.96 20000731-2.96-98) (606)
3601 2003-01-06 Andreas Dilger <adilger@clusterfs.com>
3604 - Fully reactivate OST imports after reconnection (512, others)
3605 - Make sure client sees our -ENOTCONN from mds_handle (513 - partial)
3606 - More graceful error handling for truncating on dead OST (515)
3607 - Don't error out unless we're actually accessing dead stripes (474)
3608 - Fix garbage sizes when stripes are missing (410)
3609 - LRU counters were broken, causing constant lock purge (433, 432)
3610 - garbage on read from stripes with failed OSTs (441)
3611 - mark OSCs as active before reconnecting during recovery (438)
3612 - lov_enqueue and lov_cancel need to handle inactive OSTs (403)
3613 - lfind did not preserve OST order in output (443)
3614 - symlinks cause hung clients, incorrect data (439)
3615 - stop dereferencing request after dropping refcount (457)
3616 - don't LASSERT(spin_is_locked) on non-SMP (455)
3617 - fixes for many rename() bugs
3618 - fstat didn't correctly synchronize attributes (399)
3619 - server must handle lock cancellation during blocking AST prep (487)
3620 - bulk descriptors were free()d too soon (511)
3621 - fix paths in lconf, which would load incorrect modules (451, 507)
3622 - fix confusing lconf 'host not found' error message (386)
3623 - fix lock order deadlock on OST (O/R i_sem before journal ops, 478)
3624 - fix race condition in mdc_blocking_ast() for inode access (526)
3625 - fix lov_unpackmd() unpacking wrong number of stripes (537)
3626 - fix lov_set_osc_active() marking wrong OSC inactive (440)
3627 - fix bad lstripe lov_unpackmd() assertion (fix layering too) (527)
3628 - fix multiple writes of stripe MD to MDS (358, maybe 519)
3629 - fix lstripe in several ways (kernel side) (527)
3630 - fix request leak in ldlm_cli_enqueue (262)
3631 - incorrect OSC was marked inactive after OST failure
3632 - call mds_fs_cleanup before unmounting filesystem (524)
3633 - fix races between taking ns_lock and ldlm_lock_change_resource
3634 - fix races updating LOV export open file list
3635 - fix lov_enqueue error path, avoid decref-ing bad lock handle
3636 - fix recovery NULL deref in ldlm_cli_cancel_unused
3637 - fix some DLM races by using new hash table for lock handles (419)
3638 - permit the client to specify desired inodes, at replay
3639 - duplicate requests when we queue them for replay reintegration
3640 - fix last_rcvd offset calculation
3641 - sync after each recovered transaction, so we always make progress
3642 - never, not always, ERESTART requests without transnos
3643 - store the lov_desc in the MDS, so we don't depend on getlovinfo to
3645 - skip replay if the MDS says that the client is already connected
3646 - don't check for a recovery-enabled export to match lctl's UUID
3647 - don't INC_USE_COUNT for phantom exports
3648 - don't crash when cleaning up phantom exports (567)
3649 - don't double-finish or set replay data for errored mdc_open requests
3650 - abort requests when they time out, so we don't get old replies
3651 - send/receive replies for AST messages again
3652 - if the client says that it doesn't have the lock, cancel it on the
3654 - if we timeout during I/O, don't try to cancel an in-use lock; instead
3655 mark it as destroyed, it will all work out when decref is called
3656 - fix module use counts (22, 581)
3658 - ASTs now expect a reply (server cancels lock on error reply)
3660 2002-12-02 Andreas Dilger <adilger@clusterfs.com>
3663 - fix many simultaneous client startup (392)
3664 - fix dentry->d_it clobbering
3665 - credentials weren't being shipped for readdir/getattr operations
3666 - remove invalid assertions triggered during some concurrent MD
3668 - proper Lustre versions added (336, 389)
3669 - fix memory leak for create error case (398)
3670 - fix LOV locking bug that would get cli/srv out of sync
3671 - fix echo client over LOV (409)
3672 - fix dbench 2, extN refcount problem (170, 258, 356, 418)
3673 - fix double-O_EXCL intent crash (424)
3674 - avoid sending multiple lock CANCELs (352)
3676 - MDS can do multi-client recovery (modulo bugs in new code)
3678 - many updates, edits, cleanups
3680 2002-11-18 Phil Schwan <phil@clusterfs.com>
3683 - fix null d_it dereference (346)
3684 - fix full OST/dbench hang (333)
3685 - fix permission problem with file removal (286)
3686 - fix removal of OSCs from LOV when they fail
3687 - fix NULL deref during bulk timeout (214)
3688 - fix problems related to multiple filesystems on one MDS (241)
3689 - fixed serious subtle metadata locking bugs
3690 - free locks on clients when inodes are removed due to memory
3692 - fix inode pointer in lock data (285)
3693 - partial support for multiple MDS on a single host (241)
3694 - data locks weren't cancelled at clear_inode time (290, 311)
3695 - intent locks could lead to unbounded lock growth (205)
3696 - added a maximum lock count, an LRU list, and a flusher
3697 - fix multiple rename (365)
3698 - properly abstracted the echo client
3699 - OSC locked 1 byte too many; fixed
3700 - rewrote brw callback code:
3701 - fixed recovery bugs related to LOVs (306)
3702 - fixed too-many-pages-in-one-write crash (191)
3703 - fixed (again) crash in sync_io_timeout (214)
3704 - probably fixed callback-related race (385)
3706 - Add capability to MDS protocol
3707 - LDLM cancellations and callbacks on different portals
3709 2002-10-28 Andreas Dilger <adilger@clusterfs.com>
3712 - limit client IOV size to PTL_MD_MAX_IOV (611336, 191)
3713 - defer open object destruction to close time (601981, 138)
3714 - open/close OST file handle in obdo (OBD_MD_FLHANDLE) (601981, 138)
3715 - move LDLM_ENQUEUE/CONVERT back to MDS portal (625069)
3716 - abstract ll_lookup2, fix ll_revalidate2 to use abstraction (256)
3717 - don't call obd_setattr in ll_file_release for destroyed objects
3718 * protocol change to lustre_msg: move |version| and add |flags|
3719 * protocol change to osc_punch: "start" in "o_size", "end" in "o_blocks"
3720 * lock replay: for LDLM_FL_REPLAY trust client to do right thing
3721 * added replay of create, unlink, link and rename operations during
3722 MDS failover; recovery should be much more robust now
3723 * remove failed OSCs from LOVs (only lov_create uses this so far)
3724 * the lustre-HOWTO was brought (more) up to date (582544)
3726 2002-10-23 Phil Schwan <phil@clusterfs.com>
3729 - in-use dentries weren't being reused properly (617851)
3730 - prevent multiple LDLM setup (599178)
3731 - fix LOV size calculations for truncate (617853)
3732 - fix client handling of MDS intent errors (POSIX)
3733 - fix permission bug in lovstripe.c test (624321)
3734 - fix MDS thread deadlock - move LDLM handler to DLM portal (625069)
3735 - truncate past end of file could corrupt data
3736 - proper cleanup after timeouts, crashes, etc (592524, 550815)
3737 - a race in recovery could return ETIMEDOUT to apps (623947)
3738 - building outside the source directory was fixed
3739 * the lustre-HOWTO was brought (more) up to date (582544)
3740 * major progress was made on recovery functionality
3742 2002-10-10 Phil Schwan <phil@clusterfs.com>
3745 - recovery deadlock fix
3746 - rm -rf causes LBUG fix (617817)
3747 - file open by multiple tasks fix (618962)
3748 - directory permissions bugs (602707 and 620007)
3749 - journal_stop fixed with locking (611313)
3750 - O_APPEND failures resolved (618273, perhaps 614459)
3751 - lconf PATH fix (619770)
3752 - IA64 build fix (621450)
3753 - RPC buffer sizes scale with amount of memory
3755 2002-10-01 Phil Schwan <phil@clusterfs.com>
3758 - locks would be cancelled without throwing away data pages,
3759 resulting in inconsistent data (605627)
3760 - inode attributes were not always being refreshed (605627, 612449)
3761 - lconf now continues to cleanup after lctl reports an error
3762 - MDS now enforces user permissions (602707)
3763 - lprocfs cleanup fixed, but not yet enabled (614157)
3764 - fixed infinite server hang, should a client not respond to an AST
3765 - avoid going into recovery if user calls readlink() with a buffer
3766 that's too small (613941)
3767 - AST RPCs no longer require replies (614867) -- this may be changed
3768 - don't crash server if client sends an IOV that's too big (611336)
3769 - fixed lock conversion deadlock (611892)
3770 - fixed the following of symlinks (614622)
3771 * recovery: the server can remove locks from a client that dies, other
3772 clients can make progress
3773 * more extN patch fixes
3774 * compile-time configurable ptlrpc buffer allocations
3776 - collaborative read cache document
3777 - Lustre Lite Performance CDR document-in-progress
3779 2002-09-20 Andreas Dilger <adilger@clusterfs.com>
3782 - fix typo in patch-2.4.18
3784 2002-09-20 Andreas Dilger <adilger@clusterfs.com>
3787 - clear ptlrpc request each time in handle_incoming_request()
3788 - unlink of files now destroys the object on the OST
3790 2002-09-19 Peter Braam <braam@clusterfs.com>
3792 * add hard link support
3793 * change obdfile creation method
3794 * kernel patch changed
3796 2002-09-19 Peter Braam <braam@clusterfs.com>
3799 - stack overflow bug in extN fixed
3801 2002-09-18 Andreas Dilger <adilger@clusterfs.com>
3803 * documentation updates
3804 - add man pages for config tools
3805 - update tests/README to describe testing with new config tools
3806 - finish metadata API descriptions
3807 * bug fixes and cleanups
3808 - statfs workaround for 16TB limit
3809 - LOV stripe allocation improved, can stripe on subset of OSTs
3810 - LOV file size/IO offset was wrong for files > 4GB in size
3811 - object EA data was being dropped, caused files to be unreadable
3812 - memory overflow with non-LOV OST caused memory corruption
3813 - fixed regression tests to work with new config tools, obdfilter
3814 - fixed bug when directory size became larger than 1 block
3815 - fixed bug (for single client case) when PWD was deleted
3816 - invalidate local directory pages when doing intent-based ops
3817 - avoid LDLM oops when lock callback contained bad data
3819 2002-09-09 Andreas Dilger <adilger@clusterfs.com>
3821 * documentation updates
3822 * bug fixes and cleanups
3823 - configuration tools
3826 - 64-bit compile warnings
3827 - 64-bit internal statfs data
3829 * test_brw on persistent OST devices
3831 * lprocfs (disabled)
3833 2002-09-04 Andreas Dilger <adilger@clusterfs.com>
3835 * documentation updates
3836 * bug fixes and cleanups
3837 * configuration tools
3839 2002-08-30 Peter J. Braam <braam@clusterfs.com>
3842 * many small fixes to 0_5_4
3843 * io/network handling
3844 * thinkos in MDS operations
3846 2002-08-24 Peter J. Braam <braam@clusterfs.com>
3849 * crucial basic fixes to 0.5.3
3850 * IOR, Iozone work over Elan
3853 2002-08-07 Phil Schwan <phil@clusterfs.com>
3854 * version 0_5_3, our first alpha
3855 * we use the new Portals iovs
3856 * documentation updates
3857 * bug fixes and cleanups
3858 * small changes in the DLM wire protocol
3860 2002-07-25 Peter J. Braam <braam@clusterfs.com>
3861 * version 0_5_1 with some initial stability,
3862 * locking on MD and file I/O.
3863 * documentation updates
3864 * several bug fixes since 0.5.0
3865 * small changes in wire protocol
3867 2002-07-18 Phil Schwan <phil@clusterfs.com>
3869 * delivered as Lustre Light Alpha
3870 * fixed a crash after handling invalid MDS requests
3871 * fixed directory pages for architectures with non-4k pages sizes
3873 2002-07-11 Andreas Dilger <adilger@clusterfs.com>
3874 * release version v0_4_4
3875 * Moves TCP acceptor to be on port 2432 (unused Coda port) instead
3877 * Fixes a number of interruption problems with OST operations.
3878 * Update documentation for portals header changes
3879 * Move all wire protocol structs/defines to lustre_idl.h
3880 * Fixes symlink length bug.
3881 * Add tcpdump to repository.
3883 2002-07-05 Andreas Dilger <adilger@clusterfs.com>
3884 * release version v0_4_3
3885 * Fixes statfs for inodes on extN.
3886 * Fixes bug in runtests which would delete /etc/hosts.
3887 * Use 64-bit object IDs wherever possible (not into VFS though)
3888 Remove ost_get_info, which is unused by lustre, and out of date.
3890 2002-07-03 Peter Braam <braam@clusterfs.com>
3891 * release version v0_4_2 Fixes a lookup error (type not passed)
3892 * move forward to head of Portals
3893 * move forward to latest Lustre kernel
3895 2002-06-25 Peter Braam <braam@clusterfs.com>
3896 * release version v0_4_1. Hopefully stable on single node use.
git://git.whamcloud.com / fs / lustre-release.git / blob