3 * See https://wiki.hpdd.intel.com/display/PUB/Lustre+Support+Matrix
4 for currently supported client and server kernel versions.
5 * Server known to build on patched kernels:
6 2.6.32-431.29.2.el6 (RHEL6.5)
7 2.6.32-504.30.3.el6 (RHEL6.6)
8 2.6.32-573.26.1.el6 (RHEL6.7)
9 2.6.32-642.15.1.el6 (RHEL6.8)
10 2.6.32-696.1.1.el6 (RHEL6.9)
11 3.10.0-514.16.1.el7 (RHEL7.3)
12 3.0.101-0.47.71 (SLES11 SP3)
13 3.0.101-100 (SLES11 SP4)
14 3.12.69-60.64.35 (SLES12 SP1)
15 4.4.59-92.17 (SLES12 SP2)
16 vanilla linux 4.6.7 (ZFS only)
17 * Client known to build on unpatched kernels:
18 2.6.32-431.29.2.el6 (RHEL6.5)
19 2.6.32-504.30.3.el6 (RHEL6.6)
20 2.6.32-573.26.1.el6 (RHEL6.7)
21 2.6.32-642.15.1.el6 (RHEL6.8)
22 2.6.32-696.1.1.el6 (RHEL6.9)
23 3.10.0-514.16.1.el7 (RHEL7.3)
24 3.0.101-0.47.71 (SLES11 SP3)
25 3.0.101-100 (SLES11 SP4)
26 3.12.69-60.64.35 (SLES12 SP1)
27 4.4.59-92.17 (SLES12 SP2)
29 * Recommended e2fsprogs version: 1.42.13.wc4 or newer
30 * Recommended ZFS / SPL version: 0.6.5.9
31 * Tested with ZFS / SPL version: 0.6.5.9
32 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
33 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
34 stack overflow. For more information, please refer to bugzilla 17630.
35 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
36 the re-exporting nodes to be mounted with "32bitapi" mount option
38 --------------------------------------------------------------------------------
40 12-07-2016 Intel Corporation
42 * See https://wiki.hpdd.intel.com/display/PUB/Lustre+Support+Matrix
43 for currently supported client and server kernel versions.
44 * Server known to build on patched kernels:
45 2.6.32-431.29.2.el6 (RHEL6.5)
46 2.6.32-504.30.3.el6 (RHEL6.6)
47 2.6.32-573.26.1.el6 (RHEL6.7)
48 2.6.32-642.11.1.el6 (RHEL6.8)
49 3.10.0-514.el7 (RHEL7.3)
50 3.0.101-0.47.71 (SLES11 SP3)
51 3.0.101-80 (SLES11 SP4)
52 3.12.62-60.64.8 (SLES12 SP1)
53 vanilla linux 4.5.7 (ZFS only)
54 * Client known to build on unpatched kernels:
55 2.6.32-431.29.2.el6 (RHEL6.5)
56 2.6.32-504.30.3.el6 (RHEL6.6)
57 2.6.32-573.26.1.el6 (RHEL6.7)
58 2.6.32-642.11.1.el6 (RHEL6.8)
59 3.10.0-514.el7 (RHEL7.3)
60 3.0.101-0.47.71 (SLES11 SP3)
61 3.0.101-80 (SLES11 SP4)
62 3.12.62-60.64.8 (SLES12 SP1)
64 * Recommended e2fsprogs version: 1.42.13.wc5 or newer
65 * Recommended ZFS / SPL version: 0.6.5.8
66 * Tested with ZFS / SPL version: 0.6.5.8
67 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
68 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
69 stack overflow. For more information, please refer to bugzilla 17630.
70 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
71 the re-exporting nodes to be mounted with "32bitapi" mount option
73 --------------------------------------------------------------------------------
75 02-29-2016 Intel Corporation
77 * See https://wiki.hpdd.intel.com/display/PUB/Lustre+Support+Matrix
78 for currently supported client and server kernel versions.
79 * Server known to build on patched kernels:
80 2.6.32-431.29.2.el6 (RHEL6.5)
81 2.6.32-504.30.3.el6 (RHEL6.6)
82 2.6.32-573.12.1.el6 (RHEL6.7)
83 3.10.0-327.3.1.el7 (RHEL7.2)
84 3.0.101-0.47.71 (SLES11 SP3)
85 3.0.101-68 (SLES11 SP4)
86 vanilla linux 4.2.1 (ZFS only)
87 * Client known to build on unpatched kernels:
88 2.6.32-431.29.2.el6 (RHEL6.5)
89 2.6.32-504.30.3.el6 (RHEL6.6)
90 2.6.32-573.12.1.el6 (RHEL6.7)
91 3.10.0-327.3.1.el7 (RHEL7.2)
92 3.0.101-0.47.71 (SLES11 SP3)
93 3.0.101-68 (SLES11 SP4)
96 * Recommended e2fsprogs version: 1.42.13.wc4 or newer
97 * Recommended ZFS / SPL version: 0.6.4.2
98 * Tested with ZFS / SPL version: 0.6.4.2
99 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
100 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
101 stack overflow. For more information, please refer to bugzilla 17630.
102 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
103 the re-exporting nodes to be mounted with "32bitapi" mount option
105 --------------------------------------------------------------------------------
107 03-10-2015 Intel Corporation
109 * See https://wiki.hpdd.intel.com/display/PUB/Lustre+Support+Matrix
110 for currently supported client and server kernel versions.
111 * Server known to build on patched kernels:
112 2.6.32-431.29.2.el6 (RHEL6.5)
113 2.6.32-504.8.1.el6 (RHEL6.6)
114 3.0.101-0.46 (SLES11 SP3)
115 * Client known to build on unpatched kernels:
116 2.6.32-431.29.2.el6 (RHEL6.5)
117 2.6.32-504.8.1.el6 (RHEL6.6)
118 3.10.0-123.20.1.el7 (RHEL7)
119 3.0.101-0.46 (SLES11 SP3)
120 * Recommended e2fsprogs version: 1.42.9.wc1 or newer
121 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
122 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
123 stack overflow. For more information, please refer to bugzilla 17630.
124 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
125 the re-exporting nodes to be mounted with "32bitapi" mount option
127 Severity : enhancement
129 Description: control OST-index in IDIF via ROCOMPAT flag.
130 Details : Introduce new flag OBD_ROCOMPAT_IDX_IN_IDIF that is stored in the
131 last_rcvd file. For new formatted OST device, it will be auto set;
132 for the case of upgrading from old OST device, you can enable it
133 via the lproc interface osd-ldiskfs.index_in_idif. With such flag
134 enabled, for new created OST-object, its IDIF-in-LMA will contain
135 the OST-index; for the existing OST-object, the OSD will convert
136 old format IDIF as new format IDIF with OST-index stored in the
137 LMA EA when accessing such OST-object or via OI scrub. Once such
138 flag is enabled, it cannot be reverted back, so the system cannot
139 be downgraded to the orignal incompatible version.
141 --------------------------------------------------------------------------------
143 07-30-2014 Intel Corporation
145 * See https://wiki.hpdd.intel.com/display/PUB/Lustre+Support+Matrix
146 for currently supported client and server kernel versions.
147 * Server known to build on patched kernels:
148 2.6.32-431.20.3.el6 (RHEL6.5)
149 3.0.101-0.31 (SLES11 SP3)
150 * Client known to build on unpatched kernels:
151 2.6.32-431.20.3.el6 (RHEL6.5)
152 3.0.101-0.31 (SLES11 SP3)
155 * Recommended e2fsprogs version: 1.42.9.wc1 or newer
156 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
157 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
158 stack overflow. For more information, please refer to bugzilla 17630.
159 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
160 the re-exporting nodes to be mounted with "32bitapi" mount option
162 --------------------------------------------------------------------------------
164 10-31-2013 Intel Corporation
166 * See https://wiki.hpdd.intel.com/display/PUB/Lustre+Support+Matrix
167 * Server builds for kernels:
168 2.6.32-358.18.1.el6 (RHEL6.4)
169 * Client builds for unpatched kernels:
170 2.6.32-358.18.1.el6 (RHEL6.4)
171 3.0.92-0.8 (SLES11 SP3)
173 * Recommended e2fsprogs version: 1.42.7.wc2 or newer
174 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
175 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
176 stack overflow. For more information, please refer to bugzilla 17630.
177 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
178 the re-exporting nodes to be mounted with "32bitapi" mount option
180 --------------------------------------------------------------------------------
182 05-30-2013 Intel Corporation
184 * See https://wiki.hpdd.intel.com/display/PUB/Lustre+Support+Matrix
185 * Server builds for kernels:
186 2.6.32-358.6.2.el6 (RHEL6.4)
187 * Client builds for unpatched kernels:
188 2.6.32-358.6.2.el6 (RHEL6.4)
189 3.0.74-0.6.6 (SLES11 SP2)
191 * Recommended e2fsprogs version: 1.42.7.wc1 or newer
192 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
193 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
194 stack overflow. For more information, please refer to bugzilla 17630.
195 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
196 the re-exporting nodes to be mounted with "32bitapi" mount option
198 --------------------------------------------------------------------------------
200 9-30-2012 Whamcloud, Inc.
202 * See https://wiki.hpdd.intel.com/display/PUB/Lustre+Support+Matrix
203 * Server support for kernels:
204 2.6.32-279.5.1.el6 (RHEL6)
205 * Client support for unpatched kernels:
206 2.6.32-279.5.1.el6 (RHEL6)
208 2.6.18-238.19.1.el5 (RHEL5)
209 2.6.16.60-0.69.1 (SLES10)
210 * Recommended e2fsprogs version: 1.41.90.wc4
211 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
212 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
213 stack overflow. For more information, please refer to bugzilla 17630.
214 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
215 the re-exporting nodes to be mounted with "32bitapi" mount option
217 Severity : enhancement
219 Description: Update RHEL6.3 kernel to 2.6.32-279.5.1.el6.
221 Severity : enhancement
223 Description: Update RHEL6.3 kernel to 2.6.32-279.2.1.el6.
225 Severity : enhancement
227 Description: Update RHEL6.2 kernel to 2.6.32-220.17.1.el6
229 Severity : enhancement
231 Description: Update RHEL6.2 kernel to 2.6.32-220.13.1.el6
233 Severity : enhancement
235 Description: Update RHEL6.2 kernel to 2.6.32-220.7.1.el6
237 --------------------------------------------------------------------------------
239 04-30-2012 Whamcloud, Inc.
241 * See https://wiki.hpdd.intel.com/display/PUB/Lustre+Support+Matrix
242 * Server support for kernels:
243 2.6.32-220.4.2.el6 (RHEL6)
244 * Client support for unpatched kernels:
245 2.6.32-220.4.2.el6 (RHEL6)
247 2.6.18-238.19.1.el5 (RHEL5)
248 2.6.16.60-0.69.1 (SLES10)
249 * Recommended e2fsprogs version: 1.41.90.wc4
250 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
251 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
252 stack overflow. For more information, please refer to bugzilla 17630.
253 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
254 the re-exporting nodes to be mounted with "32bitapi" mount option
256 Severity : enhancement
258 Description: Update RHEL6.2 kernel to 2.6.32-220.4.2.el6
260 Severity : enhancement
262 Description: Update RHEL6.2 kernel to 2.6.32-220.4.1.el6
264 Severity : enhancement
266 Description: Update RHEL6.2 kernel to 2.6.32-220.el6
268 Severity : enhancement
270 Description: Update RHEL6.1 kernel to 2.6.32-131.17.1.el6
272 --------------------------------------------------------------------------------
274 09-30-2011 Whamcloud, Inc.
276 * Server support for kernels:
277 2.6.18-238.19.1.el5 (RHEL5)
278 2.6.32-131.6.1.el6 (RHEL6)
279 * Client support for unpatched kernels:
280 (see http://wiki.lustre.org/index.php?title=Patchless_Client)
281 2.6.18-238.19.1.el5 (RHEL5)
282 2.6.32-131.6.1.el6 (RHEL6)
283 2.6.29.4-167.fc11 (FC11)
284 2.6.16.60-0.69.1 (SLES10)
286 * Recommended e2fsprogs version: 1.41.90.wc3
287 * NFS export disabled when stack size < 8192. Since the NFSv4 export of
288 Lustre filesystem with 4K stack may cause a stack overflow. For more
289 information, please refer to bugzilla 17630.
290 * NFSv4 reexport requires Lustre client on the re-exporting nodes to be
291 mounted with "32bitapi" mount option
293 Severity : enhancement
294 Description: Update RHEL6.1 kernel to 2.6.32-131.6.1.el6
296 Severity : enhancement
297 Description: Update RHEL5.6 kernel to 2.6.18-238.19.1.el5
299 Severity : enhancement
300 Description: Update RHEL5.6 kernel to 2.6.18-238.9.1.el5
303 Frequency : only with SLES10
305 Description: Use OFED "KMP" provided by Novell
306 Details : SLES10 SP3 ships with OFED in a separate "KMP" package.
307 Lustre is now built against this package. That means you need to
308 install the ofed-kmp package from Novell for the patchless client.
309 Note that the ofed-kmp that Novell ships may not exactly match the
310 kernel version but should still be compatible.
312 Severity : enhancement
314 Description: Update RHEL5.5 kernel to 2.6.18-194.17.1.el5
315 Update OEL5.5 kernel to 2.6.18-194.17.1.0.1.el5.
317 --------------------------------------------------------------------------------
319 2010-07-15 Oracle, Inc.
321 * Server support for kernels:
322 2.6.18-164.11.1.el5 (RHEL 5)
323 2.6.18-164.11.1.0.1.el5 (OEL 5)
324 * Client support for unpatched kernels:
325 (see http://wiki.lustre.org/index.php?title=Patchless_Client)
326 2.6.18-164.11.1.el5 (RHEL 5),
327 2.6.18-164.11.1.0.1.el5 (OEL 5)
328 2.6.16.60-0.42.8 (SLES 10),
330 2.6.29.4-167.fc11 (FC11)
331 * Recommended e2fsprogs version: 1.41.10-sun2
333 Severity : enhancement
335 Description: Distribute lfs_migrate script with lustre
336 Details : The lfs_migrate mentioned in the manual is now included in the
337 lustre tree in lustre/scripts and will distributed in lustre RPMs.
339 Severity : enhancement
341 Description: Failover nid list added to import proc file.
343 Severity : enhancement
345 Description: "som_preview" mount option required to use SOM
346 Details : The clients will need to use som_preview mount option
350 Description: Lustre does not do 1MB IOs to HW RAID
351 Details : Bump MAX_PHYS/HW_SEGMENTS and SG_ALL to 256 in the RHEL5 kernel.
353 Severity : enhancement
355 Description: lfs quota output is not very convenient for awk/sed-parsing
356 Details : Some positions in lfs quota output table could be empty or
357 non-empty which made it hard to parse it with scripts, now
358 a dash is put instead of space where there is not supposed
363 Description: Update to OFED 1.5.1
364 Details : OFED 1.5.1 will be used in environments that don't use
365 vendor supplied OFED.
369 Description: Remove lnet. prefix from lctl params display
370 Details : Also renamed lnet.memused to lnet_memused to
375 Description: Use conf_param -d to remove permanant settings.
379 Description: Add list_param -R
380 Details : lctl list_param now supports recursive mode.
383 Bugzilla : 21829, 22312
384 Description: Fix llobdstat.
385 Details : 1. Now updating the write_bytes counter
386 2. Port script fixes from 1.8.
390 Description: decrease the usage of memory on clients.
391 Details : 1. On clients, recycle dentries and inodes unused.
392 2. Delete the code related to ll_deathrow(att 6215 in bug 1443). It
397 Description: llobdstat fix and enhancement
398 Details : add a counter to set a limit to how many samples will be returned
399 fix a wildcard in the path to limit to obdfilter stats only
403 Description: lfs check only allowed for root
404 Details : Code cleanups and added a regresion test of non-root use of
409 Description: MDS Oopses in ptlrpc_dispatch_difficult_reply()/__list_add()
410 Details : Fix hr->hr_index overload.
414 Description: Fix FIEMAP functionality.
418 Description: FC11 patchless client support added
422 Description: Update RHEL5.4 kernel to 2.6.18-164.11.1.el5 and
423 OEL5.4 kernel to 2.6.18-164.11.1.0.1.el5.
427 Description: New acc-sm script and various test-framework enhancments.
431 Description: Previously landed patch was reverted.
435 Description: Update SLES10 kernel to 2.6.16.60-0.42.8 (patchless)
439 Description: Add ldiskfs maxdirsize mount option.
443 Description: Fix mkfs.lustre support for 16TB LUNs.
447 Description: Print mmp_check_interval
448 Details : print mmp_check_interval and make it possible to abort
449 mount operation in case it takes too long.
453 Description: Add cascading_rw to lustre mpi tests.
457 Description: Store SOM data in EA.
458 Details : Also several SOM related cleanups.
462 Description: Add refcount to md_open_data
466 Description: Use refcount on lov_request_set to prevent memory corruption.
470 Description: Statahead: use parent dir's i_mutex for synchronization.
474 Description: loadgen improvements.
478 Description: Enable peer health detection in ksocklnd and ko2iblnd.
482 Description: Control DCACHE_LUSTRE_INVALID flag with MDS_INODE_LOOKCUP lock
486 Description: Fix race on obd_devcie:md_stats
490 Description: Fix SLES 11 client builds.
491 Details : Resolved uninitalized pointer gcc warnings.
495 Description: Allow non-root access for "lfs check".
496 Details : Added a check in obd_class_ioctl() for OBD_IOC_PING_TARGET.
500 Description: Clear imp_force_reconnect correctly in ptlrpc_connect_interpret()
502 Severity : enhancement
504 Description: Update kernel to RHEL5.4 2.6.18-164.6.1.el5 and
505 OEL5 2.6.18-164.6.1.0.1.el5(Both in-kernel OFED enabled).
509 Description: Sanity test_27p fails.
510 Details : OBD_FAIL_OST_ENOSPC has been moved to filter_statfs().
511 Sanity tests 27 were cleaned up and improved.
515 Description: Unify req format on client/servers
516 Details : Use new req_capsule API [almost] everywhere instead of old PTLRPC
517 buffers and swabbers approach..
522 Description: drop join file stuff.
524 Severity : enhancement
526 Description: Add 2.6.27 and SLES11 (patchless client) support
530 Description: Fix in ptlrpc_expire_one_request() to print the signed time
533 Severity : enhancement
535 Description: Build kernels (RHEL5, OEL5 and SLES10/11) using the vendor's own
538 Severity : enhancement
540 Description: Remove set_info(KEY_UNLINKED) from MDS/OSC
542 Severity : enhancement
544 Description: correctly handle big reply message.
545 Details : send LNet event if reply is bigger than buffer and adjust this buffer
550 Description: Drop unnecessary __GFP_NOMEMALLOC flag from filter_get_page()
552 Severity : enhancement
554 Description: Add support for OEL5.
558 Description: Conf-sanity.sh 50g test - deactivated OST should not cause a panic.
560 Severity : enhancement
562 Description: "weak-modules" support
563 Details : Implement "weak-modules" support which enables kernel modules
564 to be used with any kernel that implements the same kABI. In
565 order to achieve this modules are now installed in
566 /lib/modules/$(uname -r)/updates/kernel on all distributions.
570 Description: client could not reconnect to OST because of an active request.
571 Details : The client now retries to reconnect to the same server, if a
572 connect request failed with EBUSY or -EAGAIN. Test case 35b
573 conf-sanity.sh has been created.
577 Description: Don't allow make backward step on assignin osc next id.
578 Details : race between allocation next id and ll_sync thread can be cause
579 of set wrong osc next id and can be kill valid ost objects.
583 Description: Changes in raid5-large-io-rhel5.patch to calculate sectors properly
587 Description: Increase the default BLK_DEF_MAX_SECTORS value for RHEL5 and SLES11
591 Description: Error handling in osc_statfs_interpret() has been improved.
592 Details : Check in osc_statfs_interpret() for EBADR.
596 Description: Do not send statfs() requests to OSTs disabled by administrator.
597 Details : Check in lov_prep_statfs_set() for non-NULL ltd_exp.
599 Severity : enhancement
601 Description: Added sanity-quota test to for lfs(1) to work with numeric uid/gid.
603 Severity : enhancement
605 Description: Update kernel to RHEL5 2.6.18-128.7.1.el5.
607 Severity : enhancement
609 Description: Enhancement for lfs(1) command to use numeric uid/gid.
613 Description: Improved cleanup procedure for conf-sanity test_46a.
617 Description: Do not start bulk transfer, if client tried to reconnect.
618 Details : Do not start bulk transfer, if client tried to reconnect,
619 but failed due to active rpcs. Check for exp_abort_active_req
620 has been implemented.
624 Description: Prevent inconsistences between linux and lustre mount structures.
625 Details : Wait indefinitely in server_wait_finished() until mnt_count drops.
626 Make the sleep interruptible.
628 Severity : enhancement
630 Description: provide server to client comms path
631 Details : server to client communications path via new LDLM_SET_INFO rpc
635 Description: truncate starts GFP_FS allocation under transaction causing deadlock
636 Details : ldiskfs_truncate calls grab_cache_page which may start page
637 allocation under an open transaction. This may lead to
638 calling prune_icache with consequent lustre reentrance.
642 Description: send correctly lsm on open replay
643 Details : MDS is trust to LSM size on replay open, but client can set wrong size
648 Description: enable client interface failover
649 Details : When a child reconnects from another NID, properly update export
650 nid hash position and ldlm reverse import.
652 Severity : enhancement
654 Description: Communicate OST degraded/readonly state via statfs to MDS
655 Details : Flags in the statfs returned from OSTs indicate whether the
656 OST is in a degraded RAID state, or if the filesystem has
657 turned read-only after a filesystem error is detected.
662 Description: don't panic if EPROTO was hit when reading symlink
663 Details : correctly handling request reference in error cases.
665 Severity : enhancement
667 Description: Add LustreNetLink, a kernel-userspace communcation path.
669 Severity : enhancement
671 Description: Update kernel to SLES10 SP2 2.6.16.60-0.39.3.
676 Description: access to llog context before init.
677 Details : move handling CATALOGS file at osc layer and forbid access to llog
681 Frequency : rare, only when client is writing to OST on local node
683 Description: Avoid deadlock for local client writes
684 Details : Use new OBD_BRW_MEMALLOC flag to notify OST about writes in the
685 memory freeing context. This allows OST threads to set the
686 PF_MEMALLOC flag on task structures in order to allocate memory
687 from reserved pools and complete IO.
688 Use GFP_HIGHUSER for OST allocations for non-local client writes,
689 so that the OST threads generate memory pressure and allow
690 inactive pages to be reclaimed.
692 Severity : enhancement
694 Description: Update kernel to RHEL5.3 2.6.18-128.1.14.el5.
699 Description: lock ordering violation between &cli->cl_sem and _lprocfs_lock
700 Details : move ldlm namespace creation in setup phase to avoid grab
701 _lprocfs_lock with cli_sem held.
705 Description: Temporarily disable grant shrink.
706 Details : Disable the feature for debugging.
709 Frequency : only when formatting test filesystems
711 Description: Unable to run several mkfs.lustre on loop devices at the same time
712 Details : mkfs.lustre returns error 256 on the concurrent loop devices
713 formatting. The solution is to proper handle the error.
715 Severity : enhancement
717 Description: Update kernel to RHEL5.3 2.6.18-128.1.6.el5.
719 Severity : enhancement
721 Description: Update kernel to SLES10 SP2 2.6.16.60-0.37.
726 Description: resolve race between obd_disconnect and class_disconnect_exports
727 Details : if obd_disconnect will be called to already disconnected export he
728 forget release one reference and osc module can't unloaded.
730 Severity : enhancement
732 Description: Allow tuning service thread via /proc
733 Details : For each service a new
734 /proc/fs/lustre/{service}/*/thread_{min,max,started} entry is
735 created that can be used to set min/max thread counts, and get the
736 current number of running threads.
741 Descriptoin: don't return error if have partially created objects for file.
742 Details : lov_update_create_set uses set->set_success as index for created
743 objects, so if some requests will be failed, they will have hole
744 at end of array and qos_shrink_lsm for allocate correct lsm.
746 Severity : enhancement
748 Description: Update OFED support to 1.4.1
753 Description: Reduce small size read RPC
754 Details : Set read-ahead limit for every file and only do read-ahead when
755 available read-ahead pages are bigger than 1M to avoid small size
758 Severity : enhancement
760 Description: move AT tunable parameters for more consistent usage
761 Details : add AT tunables under /proc/sys/lustre, add to conf_param parsing
763 Severity : enhancement
765 Description: add lazystatfs mount option to allow statfs(2) to skip down OSTs
766 Details : allow skip disconnected ost for send statfs request and hide error
772 Description: fix racy locking of mballoc block bitmaps causing BUG
773 Details : The locking of the mballoc buddy bitmap and the in-memory
774 block bitmap was using two different spin locks in some
775 cases. This made it possible to incorrectly access the
776 mballoc bitmap while another process was modifying it,
777 causing a sanity assertion to fail. While no on-disk corruption
778 was reported, there was some risk of this happening.
781 Frequency : rare, on llog test 6
783 Descriptoin: don't allow connect to already connected import
784 Details : allowing connect to already connected import is hide connecting problem.
789 Descriptoin: allow kill process which wait statahead result
790 Details : for some reasons 'ls' can stick in waiting result from statahead,
791 in this case need way for kill this process.
793 Severity : enhancement
795 Description: Add state history info file, enhance import info file
796 Details : Track import connection state changes in a new osc/mdc proc file;
797 add overview-type data to the osc/mdc import proc file.
799 Severity : enhancement
801 Description: MDS create should not wait for statfs RPC while holding DLM lock.
803 Severity : enhancement
805 Description: Update to RHEL5U3 kernel-2.6.18-128.1.1.el5.
810 Descriptoin: OST grant too much space to client even there are not enough space.
811 Details : Client will shrink its grant cache to OST if there are no write
812 activity over 6 mins (GRANT_SHRINK_INTERVAL), and OST will retrieve
813 this grant cache if there are already not enough avaible space
814 (left_space < total_clients * 32M).
817 Frequency : start MDS on uncleanly shutdowned MDS device
819 Descriptoin: ll_sync thread stay in waiting mds<>ost recovery finished
820 Details : stay in waiting mds<>ost recovery finished produce random bugs
821 due race between two ll_sync thread for one lov target. send
822 ACTIVATE event only if connect realy finished and import have
826 Frequency : rare, connect and disconnect target at same time
828 Descriptoin: ASSERTION(atomic_read(&imp->imp_inflight) == 0
829 Details : don't call obd_disconnect under lov_lock. this long time
830 operation and can block ptlrpcd which answer to connect request.
835 Descriptoin: don't lose wakeup for imp_recovery_waitq
836 Details : recover_import_no_retry or invalidate_import and import_close can
837 both sleep on imp_recovery_waitq, but we was send only one wakeup
841 Frequency : always with long access acl
843 Descriptoin: mds can't pack reply with long acl.
844 Details : mds don't control size of acl but they limited by reint/getattr
847 Severity : enhancement
849 Description: Update to SLES10 kernel-2.6.16.60-0.33.
851 Severity : enhancement
853 Description: Update to RHEL5 kernel-2.6.18-92.1.22.el5.
856 Frequency : start MDS on uncleanly shutdowned MDS device
858 Descriptoin: aborting recovery hang on MDS
859 Details : don't throttle destroy RPCs for the MDT.
862 Frequency : on remount
864 Description: external journal device not working after the remount
865 Details : clear dev_rdonly flag for external journal devices in
871 Description: shutdown vs evict race
872 Details : client_disconnect_export vs connect request race.
873 if client will evicted at this time - we start invalidate
874 thread without referece to import and import can be freed
878 Frequency : rare, need acl's on inode.
880 Description: client can't handle ost additional correctly
881 Details : if ost was added after client connected to mds client can have
882 hit lnet_try_match_md ... to big messages to wide striped files.
883 in this case need teach client to handle config events about add
884 lov target and update client max ea size at that event.
886 Severity : enhancement
888 Description: Changelogs
889 Details : Changelogs are a lightweight mechanism to track filesystem
890 metadata and namespace changes. The changelog is recorded
891 permanently on the MDTs, and is periodically "consumed" / purged
892 when records are no longer needed.
894 Severity : enhancement
896 Description: compact fld format with extents
897 Details : Store range of seq rather than every seq in FLD. Seq
898 controller update FLD rather than clients. In Case of CMD, mdt0
899 has FLD, all other metadata server act as non persistent proxy
900 for FLD queries and cache fld entries in fld cache.
905 Description: don't skip ost target if they assigned to file
906 Details : Drop slow OSCs if we can, but not for requested start idx.
907 This means "if OSC is slow and it is not the requested
908 start OST, then it can be skipped, otherwise skip it only
909 if it is inactive/recovering/out-of-space.
913 Description: more cleanup in mds_lov
914 Details : not send LOV EA under replay, we can't know about they size at this
915 time. Don't allow client connect to mds before any ost connected,
916 for avoid problems with LOV EA size and returning EIO to client.
918 Severity : enhancement
920 Description: Interoperability at server side (Disk interoperability)
922 Severity : enhancement
924 Description: Update to RHEL5 kernel-2.6.18-92.1.17.el5.
926 Severity : enhancement
928 Description: Update to SLES10 SP2 kernel-2.6.16.60-0.31.
930 Severity : enhancement
932 Description: New client IO stack (CLIO).
934 Severity : enhancement
936 Description: Commit on sharing. Eliminate inter-client dependencies between
937 uncommitted transactions by doing transaction commits.
938 Thereby clients may recovery independently.
941 Frequency : Create a symlink file with a very long name
943 Description: ldlm_cancel_pack()) ASSERTION(max >= dlm->lock_count + count)
944 Details : If there is no extra space in the request for early cancels,
945 ldlm_req_handles_avail() returns 0 instead of a negative value.
947 Severity : enhancement
949 Description: Add /proc entry for import status
950 Details : The mdc, osc, and mgc import directories now have
951 an import directory that contains useful import data for debugging
954 Severity : enhancement
956 Description: Re-disable certain /proc logging
957 Details : Enable and disable client's offset_stats, extents_stats and
958 extents_stats_per_process stats logging on the fly.
961 Frequency : Only on FC kernels 2.6.22+
963 Description: oops in statahead
964 Details : Do not drop reference count for the dentry from VFS when lookup,
965 VFS will do that by itself.
967 Severity : enhancement
969 Description: Generic /proc file permissions
970 Details : Set /Proc file permissions in a more generic way to enable non-
971 root users operate on some /proc files.
975 Description: Hitting mdc_commit_close() ASSERTION
976 Details : Properly handle request reference release in
977 ll_release_openhandle().
981 Description: quota recovery deadlock during mds failover
982 Details : This patch includes att18982, att18236, att18237 in bz14840.
984 1. fix osts hang when mds does failover with quotaon
985 2. prevent watchdog storm when osts threads wait for the
990 Frequency : only patchless client
991 Description: add workaround for race between add/remove dentry from hash
993 Severity : enhancement
995 Description: Allow OST glimpses to return PW locks
999 Description: LBUG when llog conf file is full
1000 Details : When llog bitmap is full, ENOSPC should be returned for plain log.
1004 Description: Prevent import from entering FULL state when server in recovery
1008 Description: service mount cannot take device name with ":"
1009 Details : Only when device name contains ":/" will mount treat it as
1015 Description: replace ptlrpcd with the statahead thread to interpret the async
1016 statahead RPC callback
1020 Frequency : on recovery
1021 Description: I/O failures after umount during fail back
1022 Details : if client reconnected to restarted server we need join to recovery
1023 instead of find server handler is changed and process self
1024 eviction with cancel all locks.
1026 Severity : enhancement
1028 Description: Update to RHEL5 kernel-2.6.18-92.1.10.el5.
1030 Severity : enhancement
1032 Description: Update to SLES10 SP2 kernel-2.6.16.60-0.27.
1034 Severity : enhancement
1036 Description: Upcall on Lustre log has been dumped
1037 Details : Allow for a user mode script to be called once a Lustre log has
1038 been dumped. It passes the filename of the dumped log to the
1039 script, the location of the script can be specified via
1040 /proc/sys/lnet/debug_log_upcall.
1045 Description: avoid idr_remove called for id which is not allocated.
1046 Details : Move assigment s_dev for clustered nfs to end of initialization,
1047 to avoid problem with error handling.
1052 Description: avoid Already found the key in hash [CONN_UNUSED_HASH] messages
1053 Details : When connection is reused this not moved from CONN_UNUSED_HASH
1054 into CONN_USED_HASH and this prodice warning when put connection
1055 again in unused hash.
1058 Severity : enhancement
1060 Description: File striping can now be set to use an arbitrary pool of OSTs.
1062 Severity : enhancement
1064 Description: Export bytes_read/bytes_write count on OSC/OST.
1068 Description: Early reply size mismatch, MGC loses connection
1069 Details : Apply the MGS_CONNECT_SUPPORTED mask at reconnect time so
1070 the connect flags are properly negotiated.
1075 Description: quotas are not honored with O_DIRECT
1076 Details : all writes with the flag O_DIRECT will use grants which leads to
1077 this problem. Now using OBD_BRW_SYNC to guard this.
1081 Description: add quota statistics
1082 Details : 1. sort out quota proc entries and proc code.
1083 2. add quota statistics
1085 Severity : enhancement
1087 Description: enable quota support for HEAD.
1091 Description: Properly propagate oinfo flags from lov to osc for statfs
1092 Details : restore missing copy oi_flags to lov requests.
1094 Severity : enhancement
1096 Description: Add man pages for llobdstat(8), llstat(8), plot-llstat(8),
1097 : l_getgroups(8), lst(8), routerstat(8)
1098 Details : included man pages for llobdstat(8), llstat(8),
1099 : plot-llstat(8), l_getgroups(8), lst(8), routerstat(8)
1101 Severity : enhancement
1103 Description: configure's --enable-quota should check the
1104 : kernel .config for CONFIG_QUOTA
1105 Details : configure is terminated if --enable-quota is passed but
1106 : no quota support is in kernel
1110 Description: Remove portals compatibility
1111 Details : Remove portals compatibility, not interoperable with releases
1116 Description: Resolve device initialization race
1117 Details : Prevent proc handler from accessing devices added to the
1118 obd_devs array but yet be intialized.
1120 Severity : enhancement
1122 Description: Update to SLES10 SP2 kernel-2.6.16.60-0.23.
1124 Severity : enhancement
1126 Description: Update to RHEL5 kernel-2.6.18-92.1.6.el5.
1131 Description: Using wrong pointer in osc_brw_prep_request
1132 Details : Access to array[-1] can produce panic if kernel compiled with
1133 CONFIG_PAGE_ALLOC enabled
1137 Description: Client runs out of low memory
1138 Details : Consider only lowmem when counting initial number of llap pages
1142 Description: *optional* service tags registration
1143 Details : if the "service tags" package is installed on a Lustre node
1144 When the filesystem is mounted, a local-node service tag will
1145 be created. See http://inventory.sun.com/ for more information
1146 about the Service Tags asset management system.
1150 Description: Kernel BUG tries to release flock
1151 Details : Lustre does not destroy flock lock before last reference goes
1152 away. So always drop flock locks when client is evicted and
1153 perform unlock regardless of successfulness of speaking to MDS.
1157 Description: add refcount protection for osc callbacks, avoid panic on shutdown
1161 Description: sanity test 65a fails if stripecount of -1 is set
1162 Details : handle -1 striping on filesystem in ll_dirstripe_verify
1167 Description: ASSERTION(CheckWriteback(page,cmd)) failed
1168 Details : badly clear PG_Writeback bit in ll_ap_completion can produce false
1171 Severity : enhancement
1173 Description: Update to RHEL5 kernel-2.6.18-53.1.21.el5.
1177 Description: do not process already freed flock
1178 Details : flock can possibly be freed by another thread before it reaches
1179 to ldlm_flock_completion_ast.
1183 Description: LBUG during stress test
1184 Details : Need properly lock accesses the flock deadlock detection list.
1188 Description: oops in page fault handler
1189 Details : kernel page fault handler can return two special 'pages' in error
1190 case, don't try dereference NOPAGE_SIGBUS and NOPAGE_OMM.
1194 Description: timeout with invalidate import.
1195 Details : ptlrpcd_check call obd_zombie_impexp_cull and wait request which
1196 should be handled by ptlrpcd. This produce long age waiting and
1197 -ETIMEOUT ptlrpc_invalidate_import and as result LASSERT.
1199 Severity : enhancement
1201 Description: Update to RHEL5 kernel-2.6.18-53.1.19.el5.
1205 Description: enable MGS and MDT services start separately
1206 Details : add a 'nomgs' option in mount.lustre to enable start a MDT with
1207 a co-located MGS without starting the MGS, which is a complement
1208 to 'nosvc' mount option.
1212 Frequency : after recovery
1213 Description: precreate to many object's after del orphan.
1214 Details : del orphan st in oscc last_id == next_id and this triger growing
1215 count of precreated objects. Set flag LOW to skip increase count
1216 of precreated objects.
1220 Frequency : rare, on clear nid stats
1221 Description: ASSERTION(client_stat->nid_exp_ref_count == 0)
1222 Details : when clean nid stats sometimes try destroy live entry,
1223 and this produce panic in free.
1227 Description: Stack overflow during MDS log replay
1228 ease stack pressure by using a thread dealing llog_process.
1232 Description: wait until IO finished before start new when do lock cancel.
1233 Details : VM protocol want old IO finished before start new, in this case
1234 need wait until PG_writeback is cleared until check dirty flag and
1235 call writepages in lock cancel callback.
1237 Severity : enhancement
1239 Description: using special macro for print time and cleanup in includes.
1243 Description: mds_mfd_close() ASSERTION(rc == 0)
1244 Details : In mds_mfd_close(), we need protect inode's writecount change
1245 within its orphan write semaphore to prevent possible races.
1249 Description: Obsolete CURRENT_SECONDS and use cfs_time_current_sec() instead.
1253 Frequency : rare, on shutdown ost
1254 Description: don't hit live lock with umount ost.
1255 Details : shrink_dcache_parent can be in long loop with destroy dentries,
1256 use shrink_dcache_sb instead.
1260 Description: don't panic with use echo client
1261 Details : echo client pass NULL as client nid pointer and this produce null
1262 pointer dereference.
1266 Description: fix build on ppc32
1267 Details : compile code with -m64 flag produce wrong object file for ppc32.
1271 Description: add message levels for liblustreapi
1275 Description: fix for occasional failure case of -ENOSPC in recovery-small tests
1276 Details : Move the 'good_osts' check before the 'total_bavail' check. This
1277 will result in an -EAGAIN and in the exit call path we call
1278 alloc_rr() which will with increasing aggressiveness attempt to
1279 aquire precreated objects on the minimum number of required OSCs.
1283 Description: Use old size assignment to avoid deadlock
1284 Details : Reverts the changes in bugs 2369 and bug 14138 that introduced
1285 the scheduling while holding a spinlock. We do not need locking
1286 for size in ll_update_inode() because size is only updated from
1287 the MDS for directories or files without objects, so there is no
1288 other place to do the update, and concurrent access to such inodes
1289 are protected by the inode lock.
1293 Description: resolve "_IOWR redefined" build error on SLES10
1297 Description: dump the memory debugging after all modules are unloaded to
1298 suppress false negative in conf_sanity test 39
1300 Severity : enhancement
1302 Description: build kernel-ib packages for OFED 1.3 in our release cycle
1307 Description: fix SLES kernel versioning
1308 Details : the kernel version for our SLES 10 kernel did not include a "-"
1309 before the "smp" at the end. while this was not a problem in
1310 general, it did mean that software trying to use the kernel
1311 version to try to detect a vendor specific kernel would fail.
1312 this was most evident by the OFED build scripts.
1316 Description: Don't update lov_desc members until making sure they are valid
1317 Details : When updating lov_desc members via proc fs, need fix their
1318 validities before doing the real update.
1322 Description: don't put request into delay list while invalidate in flight.
1323 Details : ptlrpc_delay_request sometimes put in delay list while invalidate
1324 import in flight. this produce timeout for invalidate and sometimes
1325 can cause stale data.
1329 Frequency : on ppc only
1330 Description: not convert ost objects for directory because it's not exist.
1331 Details : ll_dir_getstripe assume dirrectory has ost objects but this wrong.
1335 Description: Add FMODE_EXEC file flag for SLES10 SP1 kernel.
1337 Severity : enhancement
1339 Description: Update to support 2.6.22.14 vanilla kernel.
1343 Frequency : rare, on recovery
1344 Description: read procfs can produce deadlock in some situation
1345 Details : Holding lprocfs lock which send rpc can produce block for destroy
1346 obd objects and this also block reconnect with -EALREADY. This
1347 isn't fix all lprocfs bugs - but make it rare.
1349 Severity : enhancement
1351 Description: Update kernel to RHEL5 2.6.18-53.1.14.el5.
1354 Frequency : frequent on X2 node
1356 Description: mdc_set_open_replay_data LBUG
1357 Details : Set replay data for requests that are eligible for replay.
1361 Description: lustre_mgs: operation 101 on unconnected MGS
1362 Details : When MGC is disconnected from MGS long enough, MGS will evict the
1363 MGC, and late on MGC cannot successfully connect to MGS and a lot
1364 of the error messages complaining that MGS is not connected.
1368 Frequency : on network error
1369 Description: panic with double free request if network error
1370 Details : mdc_finish_enqueue is finish request if any network error ocuring,
1371 but it's true only for synchronus enqueue, for async enqueue
1372 (via ptlrpcd) this incorrect and ptlrpcd want finish request
1375 Severity : enhancement
1377 Description: client-side metadata stat-ahead during readdir(directory readahead)
1378 Details : perform client-side metadata stat-ahead when the client detects
1379 readdir and sequential stat of dir entries therein
1382 Frequency : on start mds
1384 Description: Implement get_info(last_id) in obdfilter.
1387 Frequency : occasional
1389 Description: Correctly check stale fid, not start epoch if ost not support SOM
1390 Details : open with flag O_CREATE need set old fid in op_fid3 because
1391 op_fid2 was overwritten with new generated fid, but mds can answer
1392 with one of these two fids and both is not stale. Setattr
1393 incorrectly started an epoch and assume will be called
1394 done_writing, but without SOM done_writing ever being called.
1397 Frequency : rare, depends on device drivers and load
1399 Description: MDS or OSS nodes crash due to stack overflow
1400 Details : Code changes in 1.8.0 increased the stack usage of some functions.
1401 In some cases, in conjunction with device drivers that use a lot
1402 of stack the MDS (or possibly OSS) service threads could overflow
1403 the stack. One change which was identified to consume additional
1404 stack has been reworked to avoid the extra stack usage.
1407 Frequency : occasional
1409 Description: Do not fail import if osc_interpret_create gets -EAGAIN
1410 Details : If osc_interpret_create got -EAGAIN it immediately exits and
1411 wakeup oscc_waitq. After wakeup oscc_wait_for_objects call
1412 oscc_has_objects and see OSC has no objests and call
1413 oscc_internal_create to resend create request.
1415 Severity : enhancement
1417 Description: Update to SLES10 SP1 latest kernel-2.6.16.54-0.2.5.
1419 Severity : enhancement
1421 Description: Update to RHEL5 latest kernel-2.6.18-53.1.13.el5.
1424 Frequency : very rare
1426 Description: Fix replay if there is an un-replied request and open
1427 Details : In some cases, older replay request will revert the
1428 mcd->mcd_last_xid on MDS which is used to record the client's
1429 latest sent request.
1431 Severity : enhancement
1433 Description: Update to RHEL5 latest kernel-2.6.18-53.1.6.el5.
1435 Severity : enhancement
1437 Description: Add rhel5 support to HEAD.
1439 Serverity : enhancement
1441 Description: Update RHEL4 kernel to 2.6.9-67.0.4.
1446 Description: Don't allow skipping OSTs if index has been specified.
1447 Details : Don't allow skipping OSTs if index has been specified, make
1448 locking in internal create lots better.
1452 Description: LBUG in ptlrpc_check_set() bad phase ebc0de00
1453 Details : access to bitfield in structure is always rounded to long
1454 and this produce problem with not atomic change any bit.
1458 Description: Lustre make rpms failed.
1459 Details : Remove ldiskfs spec file to avoids rpmbuild be confused when
1460 builds Lustre rpms from tarball.
1463 Frequency : rare on shutdown ost
1465 Description: If llog cancel was not send before clean_exports phase, this can
1466 produce deadlock in llog code.
1467 Details : If llog thread has last reference to obd and call class_import_put
1468 this produce deadlock because llog_cleanup_commit_master wait when
1469 last llog_commit_thread exited, but this never success because was
1470 called from llog_commit_thread.
1474 Description: allow userland application know is lost one of stripes.
1475 Details : fill lvb_blocks with error code on ost and return it to
1476 application if error flag found.
1480 Description: NULL lov_tgts causing MDS oops
1481 Details : more safe checks for NULL lov_tgts for avoid oops.
1483 Severity : enhancement
1485 Description: Update to RHEL4 latest kernel-2.6.9-67.0.1.EL.
1489 Descriptoin: make lov_create() will not stuck in obd_statfs_rqset()
1490 Details : If an OST is down the MDS will hang indefinitely in
1491 obd_statfs_rqset() waiting for the statfs data. While for
1492 MDS QOS usage of statfs, it should not stuck in waiting.
1494 Severity : enhancement
1496 Description: remote_acl support
1497 Details : Support ACL-based permission check for remote user.
1498 Support setfacl/getfacl for remote user with the utils
1499 "lfs {l,r}{s,g}etfacl" which follow the same parameter format as
1500 the system "{s,g}etfacl" utils.
1502 Severity : enhancement
1504 Description: Update to RHEL4 U6 kernel-2.6.9-67.EL.
1506 Severity : enhancement
1508 Description: Update to RHEL5 latest kernel-2.6.18-53.1.4.el5.
1512 Description: make mgs_setparam() handle fsname containing dash
1513 Details : fsname containing a dash does not work with lctl conf_param
1515 Severity : enhancement
1517 Description: Update to SLES10 SP1 latest kernel-2.6.16.54-0.2.3.
1519 Severity : enhancement
1521 Description: Update to RHEL5 Update-1 kernel 2.6.18-53.el5.
1525 Frequency : rare, at shutdown
1526 Description: access already free / zero obd_namespace.
1527 Details : if client_disconnect_export was called without force flag set,
1528 and exist connect request in flight, this can produce access to
1529 NULL pointer (or already free pointer) when connect_interpret
1530 store ocd flags in obd_namespace.
1534 Frequency : only at startup
1535 Description: not alloc memory with spinlock held.
1536 Details : allocation memory with GFP_KERNEL can produce sleep deadlock,
1537 if any spinlock held.
1539 Severity : enhancement
1541 Description: make lustre randomly fail allocating memory
1542 Details : Make lustre randomly failed allocating memory for testing purpose.
1544 Severity : enhancement
1546 Description: lost problems with lov objid file
1547 Details : Fixes some scability and access to not inited memory problems
1548 in work with lov objdid file.
1553 Description: lfs find does not continue on file error
1554 Details : Continue other files processing when a file/dir is absent.
1558 Description: Inconsistent usage of lustre_pack_reply()
1559 Details : Standardize the usage of lustre_pack_reply() such that it
1560 always generate a CERROR on failure.
1563 Frequency : occasional
1565 Description: MDS hang or stay in waiting lock
1566 Details : If client receive lock with CBPENDING flag ldlm need send lock
1567 cancel as separate rpc, to avoid situation when cancel request
1568 can't processed due all i/o threads stay in wait lock.
1572 Description: Update to RHEL5 kernel 2.6.18-8.1.15.el5.
1576 Description: Update to SLES10 SP1 kernel 2.6.16.53-0.16
1580 Description: Update to SLES9 kernel-2.6.5-7.287.3.
1584 Description: Update to RHEL4 latest kernel.
1586 Severity : enhancement
1588 Description: Build SLES10 patchless client fails
1589 Details : The configure was broken by run ./configure with
1590 --with-linux-obj=.... argument for patchless client. When the
1591 configure use --with-linux-obj, the LINUXINCLUDE= -Iinclude
1592 can't search header adequately. Use absolute path such as
1593 -I($LINUX)/include instead.
1597 Description: interrupt oig_wait produce painc on resend.
1598 Details : brw_redo_request can be used for resend requests from ptlrpcd and
1599 private set, and this produce situation when rq_ptlrpcd_data not
1600 copyed to new allocated request and triggered LBUG on assert
1601 req->rq_ptlrpcd_data != NULL. But this member used only for wakeup
1602 ptlrpcd set if request is changed and can be safety changed to use
1607 Description: LASSERT_{REQ,REP}SWAB macros are buggy
1608 Details : If SWAB_PARANOIA is disabled, the LASSERT_REQSWAB and
1609 LASSERT_REPSWAB macros become no-ops, which is incorrect. Drop
1610 these macros and replace them with their difinitions instead.
1614 Description: Update kernel patches for SLES10 2.6.16.53-0.8.
1615 Details : Update which_patch & target file for SLES10 latest kernel.
1618 Description: Remove client patches from SLES 10 kernel.
1619 Details : This causes SLES 10 clients to behave as patchless clients
1620 even on a Lustre-patched (server) kernel.
1622 Severity : enhancement
1624 Description: self-adjustable client's lru lists
1625 Details : use adaptive algorithm for managing client cached locks lru
1626 lists according to current server load, other client's work
1627 pattern, memory activities, etc. Both, server and client
1628 side namespaces provide number of proc tunables for controlling
1631 Severity : enhancement
1633 Description: light-weight GSS support
1634 Details : Support krb5n and krb5a mode, which keep Kerberos 5 authentication
1635 and reduce performance overhead.
1637 Severity : enhancement
1639 Description: Linux keyring support
1640 Details : Support using service of Linux keyring for Lustre GSS internal
1641 context refresh/cache mechanism.
1645 Description: Fix errors in lfs documentation
1646 Details : Fixes man pages
1650 Description: don't use GFP_* in generic Lustre code.
1651 Details : Use cfs_alloc_* functions and CFS_* flags for code portability.
1655 Description: obdclass is limited by single OBD_ALLOC(idarray)
1656 Details : replace OBD_ALLOC/OBD_FREE with OBD_VMALLOC/OBD_VFREE
1660 Description: warnings with build patchless client with vanila 2.6.19 and up
1661 Details : change old ctl_table style and replace ctl_table/ctl_table_header
1662 with cfs_sysctl_table_t/cfs_sysctl_table_header_t
1666 Frequency : Only for SLES
1667 Description: sanity_quota fail test_1
1668 Details : There are multiple occurences of $TSTUSR in SLES's /etc/group
1669 file, which makes TSTID[2] inunique.
1673 Frequency : Only for SLES9
1674 Description: Kernel patches for SLES9 2.6.5-7.286 kernel
1675 Details : Update target/ChangeLog/which_patch .
1679 Frequency : Only for test_10 in sanity-quota.sh
1680 Description: a bug in quota test code
1681 Details : checking a test flag in a wrong place
1685 Frequency : Only for test_13 in sanity-quota.sh
1686 Description: a bug in quota test script
1687 Details : shouldn't check overfull allocated quota
1691 Description: jbd statistics
1692 Details : Port older jbd statistics patch for sles10
1694 Severity : enhancement
1696 Description: Add printing inode info into message about error in writepage.
1701 Description: reply_lock_interpret crash due to race with it and lock cancel.
1702 Details : Do not replay locks that are being cancelled. Do not reference
1703 locks by their address during replay, just by their handle.
1707 Frequency : When flocks are used.
1708 Description: assertion failure in ldlm_cli_enquque_fini for non NULL lock.
1709 Details : Flock locks might destroy just granted lock if it could be merged
1710 with another existing flock, this is done in completion handler,
1711 so teach ldlm_cli_enquque_fini that this is a valid case for
1717 Description: Oops in read and write path when failing to allocate lock.
1718 Details : Check if lock allocation failed and return error back.
1722 Description: lstripe command fails for valid OST index
1723 Details : The stripe offset is compared to lov->desc.ld_tgt_count
1724 instead of lov->desc.ld_active_tgt_count.
1728 Description: sanity.sh failed test 103
1729 Details : RHEL mis-interpret setfacl "-X" param, so we won't test setfacl
1734 Description: df doesn't work properly if diskfs blocksize != 4K
1735 Details : Choose biggest blocksize of OST's as the LOV's blocksize.
1739 Description: lfs find on -1 stripe looping in lsm_lmm_verify_common()
1740 Details : Avoid lov_verify_lmm_common() on directory with -1 stripe count.
1742 Severity : enhancement
1744 Description: Adaptive timeouts
1745 Details : RPC timeouts adapt to changing server load and network
1746 conditions to reduce resend attempts and improve recovery time.
1750 Description: llapi_file_create() does not allow some changes
1751 Details : add llapi_file_open() that allows specifying the mode and
1752 open flags, and also returns an open file handle.
1756 Description: merge and cleanup kernel patches.
1757 Details : Remove mnt_lustre_list in vfs_intent-2.6-rhel4.patch.
1761 Description: Add journal checksum support.(Kernel part)
1762 Details : The journal checksum feature adds two new flags i.e
1763 JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT and
1764 JBD2_FEATURE_COMPAT_CHECKSUM. JBD2_FEATURE_CHECKSUM flag
1765 indicates that the commit block contains the checksum for
1766 the blocks described by the descriptor blocks. Now commit
1767 record can be sent to disk without waiting for descriptor
1768 blocks to be written to disk. This behavior is controlled
1769 using JBD2_FEATURE_ASYNC_COMMIT flag.
1773 Description: OSS needs mutliple precreate threads
1774 Details : Add ability to start more than one create thread per OSS.
1778 Description: Sanity.sh test_65k failed: setstripe should have succeeded
1779 Details : execute lfs setstripe on client
1783 Description: mds_obd_create error creating tmp object
1784 Details : When the user sets quota on root, llog will be affected and can't
1785 create files and write files.
1788 Frequency : Always on ia64 patchless client, and possibly others.
1790 Description: Add EXPORT_SYMBOL check for node_to_cpumask symbol.
1791 Details : This allows the patchless client to be loaded on architectures
1792 without this export.
1796 Description: RedHat Update kernel for RHEL5
1797 Details : Add the kernel config file for RHEL5.
1801 Description: RedHat Update kernel for RHEL5
1802 Details : Modify the kernel config file more closer RHEL5.
1806 Description: Build failure against Centos5 (RHEL5)
1807 Details : Define PAGE_SIZE when it isn't present.
1811 Description: test_7 on sanity-quota.sh can't be used on separate machines
1812 Details : add facet to handle it
1816 Description: "ll_intent_file_open()) lock enqueue: err: -13" with nfs
1817 Details : with NFS, the anon dentry's parent was set to itself in
1818 d_alloc_anon(), so in MDS, we use rec->ur_fid1 to find the
1819 corresponding dentry other than use rec->ur_name.
1821 Severity : enhancement
1823 Description: lfs setstripe enhancement
1824 Details : Make lfs setstripe understand 'k', 'm' and 'g' for stripe size.
1828 Description: enable data checksumming by default
1829 Details : enable checksum by default, allow --disable-checksum
1830 configure option and "-o nochecksum" mount option. Checksums
1831 can also be disabled at runtime via $LPROC/osc/*/checksum_pages.
1835 Description: lustre support for RHEL5
1836 Details : Add support for RHEL5.
1840 Description: Client eviction due to failover config
1841 Details : after a connection loss, the lustre client should attempt to
1842 reconnect to the last active server first before trying the
1843 other potential connections.
1847 Description: when mds and osts use different quota unit(32bit and 64bit),
1848 quota will be released repeatly.
1849 Details : void sending multiple quota reqs to mds, which will keep the
1850 status between the reqs.
1854 Description: osts not allocated evenly to files
1855 Details : change the condition to increase offset_idx
1858 Frequency : Always for filesystems larger than 2TB on 32-bit systems.
1860 Description: Data corruption for OSTs that are formatted larger than 2TB
1862 Details : When generating the bio request for lustre file writes the
1863 sector number would overflow a temporary variable before being
1864 used for the IO. The data reads correctly from Lustre (which
1865 will overflow in a similar manner) but other file data or
1866 filesystem metadata may be corrupted in some cases.
1870 Description: Tune the kernel for good SCSI performance.
1871 Details : Set the value of /sys/block/{dev}/queue/max_sectors_kb
1872 to the value of /sys/block/{dev}/queue/max_hw_sectors_kb
1877 Description: rewrite ext2-derived code in obdclass/uuid.c
1878 Details : rewrite inherited code (uuid parsing code from ext2 utils)
1879 from scratch preserving functionality.
1883 Description: "lfs find -obd UUID" prints directories
1884 Details : "lfs find -obd UUID" will return all directory names instead
1885 of just file names. It is incorrect because the directories
1886 do not reside on the OSTs.
1890 Description: use i_size_read and i_size_write in 2.6 port
1891 Details : replace inode->i_size access with i_size_read/write()
1894 Frequency : when removing large files
1896 Description: scheduling issue during removal of large Lustre files
1897 Details : Don't take the BKL in fsfilt_ext3_setattr() for 2.6 kernels.
1898 It causes scheduling issues when removing large files (17TB in the
1902 Frequency : only with liblustre clients on XT3
1904 Description: evictions taking too long
1905 Details : allow llrd to evict clients directly on OSTs
1908 Frequency : only on ppc
1910 Description: /proc/fs/lustre/devices broken on ppc
1911 Details : The patch as applied to 1.6.2 doesn't look correct for all arches.
1912 We should make sure the type of 'index' is loff_t and then cast
1913 explicitly as needed below. Do not assign an explicitly cast
1917 Frequency : only for rhel5
1919 Description: Kernel patches update for RHEL5 2.6.18-8.1.10.el5.
1920 Details : Modify the target file & which_kernel.
1922 Severity : enhancement
1924 Description: omit set fsid for export NFS
1925 Details : fix set/restore device id for avoid EMFILE error and mark lustre
1926 fs as FS_REQUIRES_DEV for avoid problems with generate fsid.
1930 Frequency : Always, for kernels after 2.6.16
1931 Description: Fix warning idr_remove called for id=.. which is not allocated.
1932 Details : Last kernels save old s_dev before kill super and not allow
1933 to restore from callback - restore it before call kill_anon_super.
1937 Description: buffer overruns could theoretically occur
1938 Details : llapi_semantic_traverse() modifies the "path" argument by
1939 appending values to the end of the origin string, and a
1940 overrun may occur. Adding buffer overrun check in liblustreapi.
1944 Description: Fix error on 'ls .' at the top of the Lustre mount.
1945 Details : Don't revalidate dentry if it is a root dentry.
1949 Description: Kernel patches update for RHEL4 2.6.9-55.0.6.
1950 Details : Modify vm-tunables-rhel4.patch.
1954 Description: Kernel config for 2.6.18-vanilla.
1955 Details : Modify targets/2.6-vanilla.target.in.
1956 Add config file kernel-2.6.18-2.6-vanilla-i686.config.
1957 Add config file kernel-2.6.18-2.6-vanilla-i686-smp.config.
1958 Add config file kernel-2.6.18-2.6-vanilla-x86_64.config.
1959 Add config file kernel-2.6.18-2.6-vanilla-x86_64-smp.config.
1963 Description: improve handling recoverable errors
1964 Details : if request processig with error which can be recoverable on server
1965 request should be resend, otherwise page released from cache and
1970 Description: Kernel patches update for RHEL5 2.6.18-8.1.14.el5.
1971 Details : Modify target file & which_patch.
1972 A flaw was found in the IA32 system call emulation provided
1973 on AMD64 and Intel 64 platforms. An improperly validated 64-bit
1974 value could be stored in the %RAX register, which could trigger an
1975 out-of-bounds system call table access. An untrusted local user
1976 could exploit this flaw to run code in the kernel
1977 (ie a root privilege escalation). (CVE-2007-4573).
1981 Description: O_DIRECT bypasses client statistics.
1982 Details : When running with O_DIRECT I/O, neither the client rpc_stats nor
1983 read_ahead_stats were updated. copied the stats section from
1984 osc_send_oap_rpc() into async_internal().
1988 Description: Add jbd statistics patch for RHEL5 and 2.6.18-vanilla
1992 Description: change order of libsysio includes
1993 Details : '#include sysio.h' should always come before '#include xtio.h'
1997 Description: handle "serious error: objid * already exists" more gracefully
1998 Details : If LAST_ID value on disk is smaller than the objects existing in
1999 the O/0/d* directories, it indicates disk corruption and causes an
2000 LBUG(). If the object is 0-length, then we should use the existing
2001 object. This will help to avoid a full fsck in most cases.
2003 Severity : enhancement
2005 Description: adapt the lustre_config script to support the upgrade case
2006 Details : Add "-u" option for lustre_config script to support upgrading 1.4
2007 server targets to 1.6 in parallel.
2011 Description: To avoid grant space > avaible space when the disk is almost
2012 full. Without this patch you might see the error "grant XXXX >
2013 available" or some LBUG about grant, when the disk is almost
2015 Details : In filter_check_grant, for non_grant cache write, we should
2016 check the left space by if (*left > ungranted + bytes), instead
2017 of (*left > ungranted), because only we are sure the left space
2018 is enough for another "bytes", then the ungrant space should be
2019 increase. In client, we should update cl_avail_grant only there
2020 is OBD_MD_FLGRANT in the reply.
2024 Description: Update RHEL 4 kernel to fix local root privilege escalation.
2025 Details : Update to the latest RHEL 4 kernel to fix the vulnerability
2026 described in CVE-2007-4573. This problem could allow untrusted
2027 local users to gain root access.
2030 Frequency : when using O_DIRECT and quotas
2032 Description: Incorrect file ownership on O_DIRECT output files
2033 Details : block usage reported by 'lfs quota' does not take into account
2034 files that have been written with O_DIRECT.
2039 Description: touch file failed when fs is not full
2040 Details : OST in recovery should not be discarded by MDS in alloc_qos(),
2041 otherwise we can get ENOSP while fs is not full.
2045 Description: parallel lock callbacks
2046 Details : Instead of sending blocking and completion callbacks as separated
2047 requests, adding them to a set and sending in parallel.
2050 Frequency : only for Cray XT3
2051 Bugzilla : 12829/13455
2052 Description: Changing primary group doesn't change the group lustre assigns to
2054 Details : When CRAY_XT3 is defined, the fsgid supplied by the client is
2055 overridden with the primary group provided by the group upcall,
2056 whereas the supplied fsgid can be trusted if it is in the list of
2057 supplementary groups returned by the group upcall.
2059 Severity : enhancement
2061 Description: Allow masking D_WARNING, D_ERROR messages from console
2062 Details : Console messages can now be disabled via lnet.printk.
2066 Description: User code with malformed file open parameter crashes client node
2067 Details : Before packing join_file req, all the related reference should be
2068 checked carefully in case some malformed flags cause fake
2069 join_file req on client.
2073 Description: LDLM_ENQUEUE races with LDLM_CP_CALLBACK
2074 Details : ldlm_completion_ast() assumes that a lock is granted when the req
2075 mode is equal to the granted mode. However, it should also check
2076 that LDLM_FL_CP_REQD is not set.
2080 Description: Heavy nfs access might result in deadlocks
2081 Details : After ELC code landed, it is now improper to enqueue any mds
2082 locks under och_sem, because enqueue might want to decide to
2083 cancel open locks for same inode we are holding och_sem for.
2087 Description: Client eviction while running blogbench
2088 Details : A lot of unlink operations with concurrent I/O can lead to a
2089 deadlock causing evictions. To address the problem, the number of
2090 oustanding OST_DESTROY requests is now throttled to
2091 max_rpcs_in_flight per OSC and LDLM_FL_DISCARD_DATA blocking
2092 callbacks are processed in priority.
2096 Description: enable ACLs on MDS by default
2097 Details : ACLs must be enabled on MDS by default.
2100 Frequency : PPC/PPC64 only
2102 Description: conflicts between asm-ppc64/types.h and lustre_types.h
2103 Details : fix duplicated definitions between asm-ppc64/types.h and
2104 lustre_types.h on PPC.
2107 Frequency : PPC/PPC64 only
2109 Description: asm-ppc/segment.h does not exist
2110 Details : fix compile issue on PPC.
2114 Description: better handle error messages in extents code
2117 Frequency : RHEL4 only
2119 Description: mkfs is very slow on IA64/RHEL4
2120 Details : A performance regression has been discovered in the MPT Fusion
2121 driver between versions 3.02.73rh and 3.02.99.00rh. As a
2122 consequence, we have downgraded the MPT Fusion driver in the RHEL4
2123 kernel from 3.02.99.00 to 3.02.73 until this problem is fixed.
2125 Severity : enhancement
2127 Description: SNMP support enhancement
2128 Details : Adding total number of sampled request for an MDS node in snmp
2131 Severity : enhancement
2133 Description: Optimize ldlm waiting list processing for PR extent locks
2134 Details : When processing waiting list for read extent lock and meeting read
2135 lock that is same or wider to it that is not contended, skip
2136 processing rest of the list and immediatelly return current
2137 status of conflictness, since we are guaranteed there are no
2138 conflicting locks in the rest of the list.
2142 Description: Time out and refuse to reconnect
2143 Details : When the failover node is the primary node, it is possible
2144 to have two identical connections in imp_conn_list. We must
2145 compare not conn's pointers but NIDs, otherwise we can defeat
2146 connection throttling.
2150 Description: port llog fixes from b1_6 into HEAD
2151 Details : Port llog reference couting and some llog cleanups from b1_6
2152 (bug 10800) into HEAD, for protect from panic and access to already
2153 free llog structures.
2157 Description: Detect stride IO mode in read-ahead
2158 Details : When a client does stride read, read-ahead should detect that and
2159 read-ahead pages according to the detected stride pattern.
2163 Description: data checksumming impacts single node performance
2164 Details : add support for several checksum algorithm. Currently, only CRC32
2165 and Adler-32 are supported. The checksum type can be changed on
2166 the fly via /proc/fs/lustre/osc/*/checksum_type.
2170 Description: use adler32 for page checksums
2171 Details : when available, use the Adler-32 algorithm instead of CRC32 for
2176 Description: build for x2 fails
2177 Details : fix compile issue on Cray systems.
2181 Description: Properly match for duplicate locks
2182 Details : Due to different lock order from skiplists code, we need to
2183 traverse entire list for now
2186 Frequency : only on PPC/SLES10
2188 Description: "BITS_PER_LONG is not 32 or 64" in linux/idr.h
2189 Details : On SLES10/PPC, fs.h includes idr.h which requires BITS_PER_LONG to
2190 be defined. Add a hack in mkfs_lustre.c to work around this compile
2195 Description: LASSERT on MDS when client holding flock lock dies
2196 Details : ldlm pool logic depends on number of granted locks equal to
2197 number of released locks which is not true for flock locks, so
2198 just exclude such locks from consideration.
2202 Description: MDS deadlock with many ll_sync_lov threads and I/O stalled
2203 Details : Use fsfilt_sync() for both the whole filesystem sync and
2204 individual file sync to eliminate dangerous inode locking
2205 with I_LOCK that can lead to a deadlock.
2209 Description: performance in 1.6.3
2210 Details : Force q->max_phys_segments to MAX_PHYS_SEGMENTS on SLES10 to be
2211 sure that 1MB requests are not fragmented by the block layer.
2213 Severity : enhancement
2215 Description: organize the server-side client stats on per-nid basis
2216 Details : Change the structure of stats under obdfilter and mds to
2224 The "uuid"s file would list the uuids of _active_ exports.
2225 And the clear entry is to clear all stats and stale nids.
2227 Severity : enhancement
2229 Description: eliminate client locks in face of contention
2230 Details : file contention detection and lockless i/o implementation
2231 for contended files.
2235 Description: Reinitialize optind to 0 so that interactive lfs works in all cases
2238 Frequency : very rare, if additional xattrs are used on kernels >= 2.6.12
2240 Description: MDS may lose file striping (and hence file data) in some cases
2241 Details : If there are additional extended attributes stored on the MDS,
2242 in particular ACLs, SELinux, or user attributes (if user_xattr
2243 is specified for the client mount options) then there is a risk
2244 of attribute loss. Additionally, the Lustre file striping
2245 needs to be larger than default (e.g. striped over all OSTs),
2246 and an additional attribute must be stored initially in the
2247 inode and then increase in size enough to be moved to the
2248 external attribute block (e.g. ACL growing in size) for file
2253 Description: skiplist implementation simplification
2254 Details : skiplists are used to group compatible locks on granted list
2255 that was implemented as tracking first and last lock of each
2256 lock group the patch changes that to using doubly linked lists
2260 Description: MDS LBUG: ASSERTION(!IS_ERR(dchild))
2261 Details : Change LASSERTs to client eviction (i.e. abort client's recovery)
2262 because LASSERT on both the data supplied by a client, and the
2263 data on disk is dangerous and incorrect.
2265 Severity : enhancement
2267 Description: Slow truncate/writes to huge files at high offsets.
2268 Details : Directly associate cached pages to lock that protect those pages,
2269 this allows us to quickly find what pages to write and remove
2270 once lock callback is received.
2274 Description: more ldlm soft lockups
2275 Details : In ldlm_resource_add_lock(), call to ldlm_resource_dump()
2276 starve other threads from the resource lock for a long time in
2277 case of long waiting queue, so change the debug level from
2278 D_OTHER to the less frequently used D_INFO.
2280 Severity : enhancement
2282 Description: add -gid, -group, -uid, -user options to lfs find
2286 Description: Hung threads in invalidate_inode_pages2_range
2287 Details : The direct IO path doesn't call check_rpcs to submit a new RPC
2288 once one is completed. As a result, some RPCs are stuck in the
2289 queue and are never sent.
2293 Description: filter threads hungs on waiting journal commit
2294 Details : Cleanup filter group llog code, then only filter group llog will
2295 be only created in the MDS/OST syncing process.
2299 Description: Procfs and llog threads access destoryed import sometimes.
2300 Details : Sync the import destoryed process with procfs and llog threads by
2301 the import refcount and semaphore.
2303 Severity : enhancement
2305 Description: openlock cache of b1_6 port to HEAD
2310 Description: kernel BUG at ldiskfs2_ext_new_extent_cb
2311 Details : If insertion of an extent fails, then discard the inode
2312 preallocation and free data blocks else it can lead to duplicate
2317 Description: don't always update ctime in ext3_xattr_set_handle()
2318 Details : Current xattr code updates inode ctime in ext3_xattr_set_handle.
2319 In some cases the ctime should not be updated, for example for
2320 2.0->1.8 compatibility it is necessary to delete an xattr and it
2321 should not update the ctime.
2325 Bugzilla : 15713/16362
2326 Description: Assertion in iopen_connect_dentry in 1.6.3
2327 Details : looking up an inode via iopen with the wrong generation number can
2328 populate the dcache with a disconneced dentry while the inode
2329 number is in the process of being reallocated. This causes an
2330 assertion failure in iopen since the inode's dentry list contains
2331 both a connected and disconnected dentry.
2335 Description: assertion failure in ldlm_handle2lock()
2336 Details : fix a race between class_handle_unhash() and class_handle2object()
2337 introduced in lustre 1.6.5 by bug 13622.
2342 Description: Kernel BUG: sd_iostats_bump: unexpected disk index
2343 Details : remove the limit of 256 scsi disks in the sd_iostat patch
2348 Description: oops in sd_iostats_seq_show()
2349 Details : unloading/reloading the scsi low level driver triggers a kernel
2350 bug when trying to access the sd iostat file.
2355 Description: Kernel panics during QLogic driver reload
2356 Details : REQ_BLOCK_PC requests are not handled properly in the sd iostat
2357 patch, causing memory corruption.
2362 Description: journal_dev option does not work in b1_6
2363 Details : pass mount option during pre-mount.
2365 Severity : enhancement
2367 Description: Add a FIEMAP(FIle Extent MAP) ioctl
2368 Details : FIEMAP ioctl will allow an application to efficiently fetch the
2369 extent information of a file. It can be used to map logical blocks
2370 in a file to physical blocks in the block device.
2374 Description: LDLM soft lockups - improvement
2375 Details : It is be possible to send the lock handle along with each read
2376 or write request because the client is already doing a lock match
2377 itself so there isn't any reason the OST should have to re-do that
2381 Frequency : only on Cray X2
2383 Description: X2 build failures
2384 Details : fix build failures on Cray X2.
2388 Description: xid & resent requests
2389 Details : Initialize RPC XID from clock at startup (randomly if clock is
2392 Severity : enhancement
2394 Description: Add lustre_start utility to start or stop multiple Lustre servers
2399 Description: Lustre GPF in {:ptlrpc:ptlrpc_server_free_request+373}
2400 Details : In case of memory pressure, list_del() can be called twice on
2401 req->rq_history_list, causing a kernel oops.
2405 Description: kptllnd_peer_check_sends()) ASSERTION(!in_interrupt()) failed
2406 Details : fix stack overflow in the distributed lock manager by defering
2407 export eviction after a failed AST to the elt thread instead of
2408 handling it in the dlm interpret routine.
2412 Description: Convert some comments to new format.
2413 Details : Update documenting comments to match doxygen conventions.
2417 Description: Grammar fixes.
2418 Details : A couple of trivial spelling fixes.
2422 Description: OSD_COUNTERS-mandatory
2423 Details : Make previously optional ->oti_{w,r}_locks sanity checks mandatory
2424 to simplify the code.
2428 Description: simplify cmm_device freeing logic.
2429 Details : Call cmm_device_free() in the failure path of cmm_device_alloc().
2433 Description: Add lockdep support to dt_object_operations locking interface.
2434 Details : Augment ->do_{read,write}_lock() prototypes with a `role'
2435 parameter indicating lock ordering. Update mdd code to use new
2440 Description: Introduce failloc constants for lockless IO tests.
2441 Details : Add two new failloc constants to test lockless IO. Only one of
2442 them in implemented---another is checked in yet to be landed
2447 Description: Add lockdep support for inode mutex.
2448 Details : Introduce and use new LOCK_INODE_MUTEX_PARENT() macro to be used
2449 in the situations where Lustre has to lock more than one inode
2454 Description: Add optional invariants checking support.
2455 Details : Add new LINVRNT() macro, optional on new --enable-invariants
2456 configure switch. This macro is to be used for consistency and
2457 sanity checks that are too expensive to be left in `production'
2462 Description: Zap lock->l_granted_mode with explicit LCK_MINMODE.
2463 Details : Use LCK_MINMODE rather than 0 to reset lock->l_granted_mode to
2468 Description: Add lockdep support for ldlm_lock and ldlm_resource.
2469 Details : Use spin_lock_nested() in (the only) situation where more than
2470 one ldlm_lock is locked simultaneously. Also, fix possible
2471 dead-lock in ldlm_lock_change_resource() by enforcing particular
2476 Description: Use struct ldlm_callback_suite in ldlm_lock_create().
2477 Details : Instead of specifying each ldlm_lock call-back through separate
2478 parameter, wrap them into struct ldlm_callback_suite.
2482 Description: Kill join_lru obd method and its callers.
2483 Details : CLIO uses lock weighting policy to keep locks over mmapped regions
2484 in memory---a requirement implemented through ->o_join_lru() obd
2485 method in HEAD. Remove this method and its users.
2489 Description: Add asynchronous ldlm ENQUEUE completion handler.
2490 Details : CLIO posts ENQUEUE requests asynchronously through ptlrpcd---a
2491 case that stock ldlm_completion_ast() cannot handle as it waits
2492 until lock is granted. Introduce new ldlm_completion_ast_async()
2493 for this. Also comment ldlm_completion_ast().
2497 Description: ldlm_error <-> errno conversion.
2498 Details : Add functions to map (rather arbitrary) between LDLM error codes
2499 and standard errno values. CLIO needs this to prevent LDLM specific
2500 constants from escaping ldlm and osc.
2504 Description: Kill unused ldlm_handle2lock_ns() function.
2505 Details : Kill unused ldlm_handle2lock_ns() function.
2509 Description: Add lu_ref support to ldlm_lock
2510 Details : lu_ref support for ldlm_lock and ldlm_resource. See lu_ref patch.
2511 lu_ref fields ->l_reference and ->lr_reference are added to ldlm_lock
2512 and ldlm_resource. LDLM interface has to be changed, because code that
2513 releases a reference on a lock, has to "know" what reference this is.
2514 In the most frequent case
2516 lock = ldlm_handle2lock(handle);
2518 LDLM_LOCK_PUT(lock);
2520 no changes are required. When any other reference (received _not_ from
2521 ldlm_handle2lock()) is released, LDLM_LOCK_RELEASE() has to be called
2522 instead of LDLM_LOCK_PUT().
2524 Arguably, changes are pervasive, and interface requires some discipline
2525 for proper use. On the other hand, it was very instrumental in finding
2526 a few leaked lock references.
2530 Description: Add ldlm_lock_addref_try().
2531 Details : Introduce ldlm_lock_addref_try() function (used by CLIO) that
2532 attempts to addref a lock that might be being canceled
2537 Description: Add ldlm_weigh_callback().
2538 Details : Add new ->l_weigh_ast() call-back to ldlm_lock. It is called
2539 by ldlm_cancel_shrink_policy() to estimate lock "value", instead of
2540 hard-coded `number of pages' logic.
2544 Description: Add lockdep annotations to llog code.
2545 Details : Use appropriately tagged _nested() locking calls in the places
2546 where llog takes more than one ->lgh_lock lock.
2550 Description: Add loi_kms_set().
2551 Details : Wrap kms updates into a helper function.
2555 Description: Constify instances of struct lsm_operations.
2556 Details : Constify instances of struct lsm_operations.
2560 Description: lu_conf support.
2561 Details : On a server, a file system object is uniquely identified
2562 by a fid, which is sufficient to locate and load all object
2563 state (inode). On a client, on the other hand, more data are
2564 necessary instantiate an object. Change lu_object_find() and
2565 friends to take additional `lu_conf' argument describing object.
2566 Typically this includes layout information.
2570 Description: lu_context fixes.
2571 Details : Introduce new lu_context functions that are needed on the client
2572 side, where some system threads (ptlrpcd) are shared by multiple
2573 modules, and so cannot be stopped during module shutdown.
2577 Description: Add start and stop methods to lu_device_type_operations.
2578 Details : Introduce two new methods in lu_device_type_operations, that are
2579 invoked when first instance of a given type is created and last one
2580 is destroyed respectively. This is need by CLIO.
2584 Description: Add lu_ref support to struct lu_device.
2585 Details : Add lu_ref support to lu_object and lu_device. lu_ref is used to
2586 track leaked references.
2590 Description: Introduce lu_kmem_descr.
2591 Details : lu_kmem_descr and its companion interface allow to create
2592 and destroy a number of kmem caches at once.
2596 Description: Fix lu_object finalization race.
2597 Details : Fix a race between lu_object_find() finding an object and its
2598 concurrent finalization. This race is (most likely) not possible
2599 on the server, but might happen on the client.
2603 Description: Introduce lu_ref interface.
2604 Details : lu_ref is a debugging module allowing to track references to
2605 a given object. It is quite cpu expensive, and has to be
2606 explicitly enabled with --enable-lu_ref. See usage description
2611 Description: Factor lu_site procfs stats into a separate function.
2612 Details : Separate lu_site stats printing code into a separate function
2613 that can be reused on a client.
2617 Description: Constify instances of struct {lu,dt,md}_device_operations.
2618 Details : Constify instances of struct {lu,dt,md}_device_operations.
2622 Description: Introduce struct md_site and move meta-data specific parts of
2623 struct lu_site here.
2624 Details : Move md-specific fields out of struct lu_site into special struct
2625 md_site, so that lu_site can be used on a client.
2629 Description: Kill mdd_lov_destroy().
2630 Details : Remove unused mdd code.
2634 Description: Add st_block checking to multistat.c.
2635 Details : Add st_block checking to multistat.c.
2639 Description: Add lu_ref support to struct obd_device.
2640 Details : Add lu_ref tracking to obd_device.
2644 Description: Kill obd_set_fail_loc().
2645 Details : Remove unused code.
2649 Description: Add special type for ptlrpc_request interpret functions.
2650 Details : Add lu_env parameter to ->rq_interpreter call-back. NULL is passed
2651 there. Actual usage will be in CLIO.
2655 Description: Replace RW_LOCK_UNLOCKED() macro with rwlock_init().
2656 Details : Replace RW_LOCK_UNLOCKED() with rwlock_init() as the former
2657 doesn't work with lockdep.
2661 Description: Add rwv.c test program.
2662 Details : New testing program exercising readv(2) and writev(2) (Qian).
2666 Description: Add sendfile.c test program.
2667 Details : New testing program exercising sendfile(2) (Jay).
2671 Description: Ratelimit a message that can be very frequent.
2672 Details : Ratelimit a memory allocation failure message that can
2677 Description: Use cdebug_show() in CDEBUG-style macros defined outside of libcfs.
2678 Details : Use cdebug_show() in CDEBUG-style macros defined outside of libcfs.
2682 Description: Liblustre build fixes.
2683 Details : Liblustre build fixes.
2687 Description: libcfs: add cfs_{need,cond}_resched() interface.
2688 Details : libcfs: add cfs_{need,cond}_resched() definition and
2689 implementations for Linux, NT, and liblustre.
2691 Severity : enhancement
2693 Description: More exported tunables for mballoc
2694 Details : Add support for tunable preallocation window and new tunables for
2695 large/small requests
2699 Description: Detect corruption of block bitmap and checking for preallocations
2700 Details : Checks validity of on-disk block bitmap. Also it does better
2701 checking of number of applied preallocations. When corruption is
2702 found, it turns filesystem readonly to prevent further corruptions.
2706 Description: (rw.c:1323:ll_read_ahead_pages()) ASSERTION(page_idx > ria->ria_stoff) failed
2707 Details : Once the unmatched stride IO mode is detected, shrink the stride-ahead
2708 window to 0. If it does hit cache miss, and read-pattern is still
2709 stride-io mode, does not reset the stride window, but also does not
2710 increase the stride window length in this case.
2714 Frequency : only for big-endian servers
2715 Description: Check if system is big-endian while mounting fs with extents feature
2716 Details : Mounting a filesystem with extents feature will fail on big-endian
2717 systems since ext3-based ldiskfs is not supported on big-endian
2718 systems. This can be over-riden with "bigendian_extents" mount option.
2720 Severity : enhancement
2722 Description: The root squash functionality
2723 Details : A security feature, which is to prevent users from being able
2724 to mount lustre on their desktop, run as root, and delete
2725 all of the files in the filesystem. The goal is accomplished by
2726 remapping user id (UID) and group id (GID) of the root user to
2727 a UID and GID specified by the system administartor via Lustre
2728 configuration management server (MGS). The functionality also
2729 allows to specify sets of clients for which the remapping does
2734 Description: Excessive recovery window
2735 Details : With AT enabled, the recovery window can be excessively long (6000+
2736 seconds). To address this problem, we no longer use
2737 OBD_RECOVERY_FACTOR when extending the recovery window (the connect
2738 timeout no longer depends on the service time, it is set to
2739 INITIAL_CONNECT_TIMEOUT now) and clients report the old service
2740 time via pb_service_time.
2744 Description: Watchdog triggered on MDS failover
2745 Details : enable OBD_CONNECT_MDT flag when connecting from the MDS so that
2746 the OSTs know that the MDS "UUID" can be reused for the same export
2747 from a different NID, so we do not need to wait for the export to be
2751 Frequency : rare, only if using MMP with Linux RAID
2753 Description: MMP doesn't work with Linux RAID
2754 Details : While using HA for Lustre servers with Linux RAID, it is possible
2755 that MMP will not detect multiple mounts. To make this work we
2756 need to unplug the device queue in RAID when the MMP block is being
2757 written. Also while reading the MMP block, we should read it from
2758 disk and not the cached one.
2760 Severity : enhancement
2762 Description: open file using fid
2763 Details : A file can be opened using just its fid, like
2764 <mntpt>/.lustre/fid/SEQ:OID:VER - this is needed for HSM and replication
2767 Frequency : Only in RHEL5 when mounting multiple ext3 filesystems
2770 Description: "kmem_cache_create: duplicate cache jbd_4k" error message
2771 Details : add proper locking for creation of jbd_4k slab cache
2775 Description: MMP check in ext3_remount() fails without displaying any error
2776 Details : When multiple mount protection fails during remount, proper error
2779 Severity : enhancement
2781 Description: Allow stripe size to be up to 4G-64k
2782 Details : Fix math logic to allow large stripe sizes.
2786 Description: add check for >8TB ldiskfs filesystems
2787 Details : ext3-based ldiskfs does not support greater than 8TB LUNs.
2788 Don't allow >8TB ldiskfs filesystems to be mounted without
2789 force_over_8tb mount option
2794 Descriptoin: OSS complains "too many blocks" and crashes
2795 Details : In filter_commitrw_write():
2796 1. lquota_chkquota();
2797 2. obdo_from_inode();
2798 3. lquota_pending_commit();
2799 "2." has changed uid and gid in this case, then caused
2800 lquota_chkquota() and lquota_pending_commit() to use
2801 different uid and gid. That is the root of the bug.
2805 Descriptoin: getstripe doesn't report stripe count = -1 sanely
2806 Details : Detect and print out the 'stripe count = -1' case properly.
2810 Description: Out or order replies might be lost on replay
2811 Details : In ptlrpc_retain_replayable_request if we cannot find retained
2812 request with tid smaller than one currently being added, add it
2813 to the start, not end of the list.
2815 --------------------------------------------------------------------------------
2817 2007-08-10 Cluster File Systems, Inc. <info@clusterfs.com>
2819 * Support for kernels:
2820 2.6.5-7.283 (SLES 9),
2821 2.6.9-55.EL (RHEL 4),
2822 2.6.16.46-0.14 (SLES 10),
2823 2.6.18.8 vanilla (kernel.org)
2824 * Client support for unpatched kernels:
2825 (see http://wiki.lustre.org/index.php?title=Patchless_Client)
2826 2.6.16 - 2.6.22 vanilla (kernel.org)
2827 * Due to recently discovered recovery problems, we do not recommend
2828 using patchless RHEL 4 clients with this or any earlier release.
2829 * Recommended e2fsprogs version: 1.39.cfs8
2830 * Note that reiserfs quotas are disabled on SLES 10 in this kernel.
2831 * Starting with this release, the ldiskfs backing filesystem required
2832 by Lustre is now in its own package, lustre-ldiskfs. This package
2833 should be installed. It is versioned separately from Lustre and
2834 may be released separately in future.
2838 Description: block reactivating mgc import until all deactivates complete
2839 Details : Fix race when failing back MDT/MGS to itself (testing)
2842 Frequency : at statup only
2844 Description: mds_lov_synchronize race leads to various problems
2845 Details : simultaneous MDT->OST connections at startup can cause the
2846 sync to abort, leaving the OSC in a bad state.
2848 Severity : enhancement
2850 Description: add optional extra BUILD_VERSION info
2851 Details : add a new environment variable (namely LUSTRE_VERS) which allows
2852 to override the lustre version.
2855 Frequency : 2.6.18 servers only
2857 Description: ll_kern_mount() doesn't release the module reference
2858 Details : The ldiskfs module reference count never drops down to 0
2859 because ll_kern_mount() doesn't release the module reference.
2864 Description: server LBUG when using old ost_num_threads parameter
2865 Details : Accept the old ost_num_threads parameter but warn that it
2866 is deprecated, and fix an off-by-one error that caused an LBUG.
2871 Description: Transient SCSI error results in persistent IO issue
2872 Details : iobuf->dr_error is not reinitialized to 0 between two
2876 Frequency : sometimes when underlying device returns I/O errors
2878 Description: OSTs not going read-only during write failures
2879 Details : OSTs are not remounted read-only when the journal commit threads
2880 get I/O errors because fsfilt_ext3 calls journal_start/stop()
2881 instead of the ext3 wrappers.
2885 Description: poor connect scaling with increasing client count
2886 Details : Don't run filter_grant_sanity_check for more than 100 exports
2887 to improve scaling for large numbers of clients.
2890 Frequency : SLES10 only
2892 Description: sanity-quota.sh quotacheck failed: rc = -22
2893 Details : Quotas cannot be enabled on SLES10.
2896 Frequency : liblustre clients only
2898 Description: getdirentries does not give error when run on compute nodes
2899 Details : getdirentries does not fail when the size specified as an argument
2900 is too small to contain at least one entry
2902 Severity : enhancement
2904 Description: Add LNET router traceability for debug purposes
2905 Details : If a checksum failure occurs with a router as part of the
2906 IO path, the NID of the last router that forwarded the bulk data
2907 is printed so it can be identified.
2912 Description: OST "spontaneously" evicts client; client has imp_pingable == 0
2913 Details : Due to a race condition, liblustre clients were occasionally
2914 evicted incorrectly.
2916 Severity : enhancement
2918 Description: lfs setstripe use optional parameters instead of postional
2921 Severity : enhancement
2923 Description: Nanosecond timestamp support for ldiskfs
2924 Details : The on-disk ldiskfs filesystem has added support for nanosecond
2925 resolution timestamps. There is not yet support for this at
2926 the Lustre filesystem level.
2929 Frequency : during server recovery
2931 Description: MDS failing to send precreate requests due to OSCC_FLAG_RECOVERING
2932 Details : request with rq_no_resend flag not awake l_wait_event if they get
2936 Frequency : nfs export on patchless client
2938 Description: connectathon hang when test nfs export over patchless client
2939 Details : Disconnected dentry cannot be found with lookup, so we do not need
2940 to unhash it or make it invalid
2943 Description: fix llapi_lov_get_uuids() to allow many OSTs to be returned
2944 Details: : Change llapi_lov_get_uuids() to read the UUIDs from /proc instead
2945 of using an ioctl. This allows lfsck for > 160 OSTs to succeed.
2950 Description: open req refcounting wrong on reconnect
2951 Details : If reconnect happened between getting open reply from server and
2952 call to mdc_set_replay_data in ll_file_open, we will schedule
2953 replay for unreferenced request that we are about to free.
2954 Subsequent close will crash in variety of ways.
2955 Check that request is still eligible for replay in
2956 mdc_set_replay_data().
2961 Description: disable writes to filesystem when reading health_check file
2962 Details : the default for reading the health_check proc file has changed
2963 to NOT do a journal transaction and write to disk, because this
2964 can cause reads of the /proc file to hang and block HA state
2965 checking on a healthy but otherwise heavily loaded system. It
2966 is possible to return to the previous behaviour during configure
2967 with --enable-health-write.
2969 Severity : enhancement
2971 Description: 64-bit inode version
2972 Details: : Add a on-disk 64-bit inode version for ext3 to track changes made
2973 to the inode. This will be required for version-based recovery.
2978 Description: MDS fails to start if a duplicate client export is detected
2979 Details : in some rare cases it was possible for a client to connect to
2980 an MDS multiple times. Upon recovery the MDS would detect this
2981 and fail during startup. Handle this more gracefully.
2983 Severity : enhancement
2985 Description: Add -o localflock option to simulate old noflock
2987 Details : This will achieve local-only flock/fcntl locks
2993 Description: log_commit_thread vs filter_destroy race leads to crash
2994 Details : Take import reference before releasing llog record semaphore
2999 Description: Wrong request locking in request set processing
3000 Details : ptlrpc_check_set wrongly uses req->rq_lock for proctect add to
3001 imp_delayed_list, in this place should be used imp_lock.
3004 Frequency : when reconnection
3006 Description: Grant Leak when osc reconnect to OST
3007 Details : When osc reconnect ost, OST(filter) should check whether it
3008 should grant more space to client by comparing fed_grant and
3009 cl_avail_grant, and return the granted space to client instead
3010 of "new granted" space, because client will call osc_init_grant
3011 to update the client grant space info.
3014 Frequency : when client reconnect to OST
3016 Description: Grant Leak when osc do resend and replay bulk write
3017 Details : When osc reconnect to OST, OST(filter)should clear grant info of
3018 bulk write request, because the grant info while be sync between
3019 OSC and OST when reconnect, and we should ignore the grant info
3020 these of resend/replay write req.
3025 Description: Grant space more than available left space sometimes.
3026 Details : When then OST is about to be full, if two bulk writing from
3027 different clients came to OST. Accord the avaliable space of the
3028 OST, the first req should be permitted, and the second one
3029 should be denied by ENOSPC. But if the seconde arrived before
3030 the first one is committed. The OST might wrongly permit second
3031 writing, which will cause grant space > available space.
3034 Frequency : when client is evicted
3036 Description: Grant might be wrongly erased when osc is evicted by OST
3037 Details : when the import is evicted by server, it will fork another
3038 thread ptlrpc_invalidate_import_thread to invalidate the
3039 import, where the grant will be set to 0. While the original
3040 thread will update the grant it got when connecting. So if
3041 the former happened latter, the grant will be wrongly errased
3042 because of this race.
3047 Description: Checking Stale with correct fid
3048 Details : ll_revalidate_it should uses de_inode instead of op_data.fid2
3049 to check whether it is stale, because sometimes, we want the
3050 enqueue happened anyway, and op_data.fid2 will not be initialized.
3052 Severity : enhancement
3054 Description: update patchless client
3055 Details : Add support for patchless client with 2.6.20, 2.6.21 and RHEL 5
3058 Frequency : only with 2.4 kernel
3060 Description: random memory corruption
3061 Details : size of struct ll_inode_info is to big for union inode.u and this
3062 can be cause of random memory corruption.
3067 Description: Memory leak in recovery
3068 Details : Lov_mds_md was not free in an error handler in mds_create_object.
3069 It should also check obd_fail before fsfilt_start, otherwise if
3070 fsfilt_start return -EROFS,(failover mds during mds recovery).
3071 then the req will return with repmsg->transno = 0 and rc = EROFS.
3072 and we met hit the assert LASSERT(req->rq_reqmsg->transno ==
3073 req->rq_repmsg->transno) in ptlrpc_replay_interpret. Fcc should
3074 be freed no matter whether fsfilt_commit success or not.
3077 Frequency : only with huge count clients
3079 Description: Prevents from taking the superblock lock in llap_from_page for
3081 Details : using LL_ORIGIN_REMOVEPAGE origin flag instead of LL_ORIGIN_UNKNOW
3082 for llap_from_page call in ll_removepage prevents from taking the
3083 superblock lock for a soon died page.
3088 Description: Not check open intent error before release open handle
3089 Details : in some rare cases, the open intent error is not checked before
3090 release open handle, which may cause
3091 ASSERTION(open_req->rq_transno != 0), because it tries to release
3092 the failed open handle.
3097 Description: Set cat log bitmap only after create log success.
3098 Details : in some rare cases, the cat log bitmap is set too early. and it
3099 should be set only after create log success.
3103 Description: Accessing a block bevice can re-enable I/O when Lustre is
3104 tearing down a device.
3105 Details : dev_clear_rdonly(bdev) must be called in kill_bdev() instead of
3110 Description: service threads may hog cpus when there are a lot of requests
3111 Details : Insert cond_resched to give other threads a chance to use some CPU
3116 Description: the cat log was not initialized in recovery
3117 Details : When mds(mgs) do recovery, the tgt_count might be zero, so the
3118 unlink log on mds will not be initialized until mds post
3119 recovery. And also in mds post recovery, the unlink log will
3120 initialization will be done asynchronausly, so there will be race
3121 between add unlink log and unlink log initialization.
3125 Description: brw_stats were being printed incorrectly
3126 Details : brw_stats were being printed as log2 but all of them were not
3127 recorded as log2. Also remove some code duplication arising from
3128 filter_tally_{read,write}.
3132 Frequency : rare, only in recovery.
3133 Description: ASSERTION(req->rq_type != LI_POISON) failed
3134 Details : imp_lock should be held while iterating over imp_sending_list for
3135 prevent destroy request after get timeout in ptlrpc_queue_wait.
3139 Description: replay-single.sh test 52 fails
3140 Details : A lock's skiplist need to be cleanup when it being unlinked
3141 from its resource list.
3145 Description: Short directio read returns full requested size rather than
3147 Details : Direct I/O operations should return actual amount of bytes
3148 transferred rather than requested size.
3150 Severity : enhancement
3152 Description: metadata RPC reduction (e.g. for rm performance)
3153 Details : decrease the amount of synchronous RPC between clients and servers
3154 by canceling conflicing lock before the operation on the client
3155 and packing thier handles into the main operation RPC to server.
3157 Severity : enhancement
3159 Description: Async OSC create to avoid the blocking unnecessarily.
3160 Details : If an OST has no remaining object, system will block on the
3161 creation when it needs to create a new object on this OST. Now,
3162 ways use pre-created objects when available, instead of blocking on
3163 an empty osc while others are not empty. If we must block, we
3164 block for the shortest possible period of time.
3168 Description: improve handling recoverable errors
3169 Details : if request processig with error which can be recoverable on server
3170 request should be resend, otherwise page released from cache and
3173 Severity : enhancement
3175 Description: refine locking for avoid write wrong info into lov_objid file
3176 Details : fix possible races with add new target and write/update data in
3179 --------------------------------------------------------------------------------
3181 2007-05-03 Cluster File Systems, Inc. <info@clusterfs.com>
3186 Frequency : on some architectures
3188 Description: 1.6 client sometimes fails to mount from a 1.4 MDT
3189 Details : Uninitialized flags sometimes cause configuration commands to
3193 Frequency : patchless clients only
3195 Description: missing __iget() symbol export
3196 Details : The __iget() symbol export is missing. To avoid the need for
3197 this on patchless clients the deathrow inode reaper is turned
3198 off, and we depend on the VM to clean up old inodes. This
3199 dependency was during via the fix for bug 12181.
3201 --------------------------------------------------------------------------------
3203 2007-04-19 Cluster File Systems, Inc. <info@clusterfs.com>
3205 * CONFIGURATION CHANGE. This version of Lustre WILL NOT
3206 INTEROPERATE with older versions automatically. In many cases a
3207 special upgrade step is needed. Please read the
3208 user documentation before upgrading any part of a live system.
3209 * WIRE PROTOCOL CHANGE from previous 1.6 beta versions. This
3210 version will not interoperate with 1.6 betas before beta5 (1.5.95).
3211 * WARNING: Lustre configuration and startup changes are required with
3212 this release. See https://mail.clusterfs.com/wikis/lustre/MountConf
3216 Severity : enhancement
3218 Description: MountConf
3219 Details : Lustre configuration is now managed via mkfs and mount
3220 commands instead of lmc and lconf. New obd types (MGS, MGC)
3221 are added for dynamic configuration management. See
3222 https://mail.clusterfs.com/wikis/lustre/MountConf for
3225 Severity : enhancement
3227 Description: dynamic OST addition
3228 Details : OSTs can now be added to a live filesystem
3230 Severity : enhancement
3232 Description: startup order invariance
3233 Details : MDTs and OSTs can be started in any order. Clients only
3234 require the MDT to complete startup.
3236 Severity : enhancement
3238 Description: parallel, asynchronous orphan cleanup
3239 Details : orphan cleanup is now performed in separate threads for each
3240 OST, allowing parallel non-blocking operation.
3242 Severity : enhancement
3244 Description: optimized stripe assignment
3245 Details : stripe assignments are now made based on ost space available,
3246 ost previous usage, and OSS previous usage, in order to try
3247 to optimize storage space and networking resources.
3249 Severity : enhancement
3251 Description: Permanently set tunables
3252 Details : All writable /proc/fs/lustre tunables can now be permanently
3253 set on a per-server basis, at mkfs time or on a live system.
3255 Severity : enhancement
3257 Description: Lustre message v2
3258 Details : Add lustre message format v2.
3260 Severity : enhancement
3262 Description: client OST exclusion list
3263 Details : Clients can be started with a list of OSTs that should be
3264 declared "inactive" for known non-responsive OSTs.
3268 Description: SPEC SFS validation failure on NFS v2 over lustre.
3269 Details : Changes the blocksize for regular files to be 2x RPC size,
3270 and not depend on stripe size.
3272 Severity : enhancement
3274 Description: Multiple MD RPCs in flight.
3275 Details : Further unserialise some read-only MDS RPCs - learn about intents.
3276 To avoid overly-overloading MDS, introduce a limit on number of
3277 MDS RPCs in flight for a single client and add /proc controls
3278 to adjust this limit.
3280 Severity : enhancement
3282 Description: client read/write statistics
3283 Details : Add client read/write call usage stats for performance
3284 analysis of user processes.
3285 /proc/fs/lustre/llite/*/offset_stats shows non-sequential
3286 file access. extents_stats shows chunk size distribution.
3287 extents_stats_per_process show chunk size distribution per
3290 Severity : enhancement
3292 Description: mds statistics
3293 Details : Add detailed mds operations statistics in
3294 /proc/fs/lustre/mds/*/stats.
3298 Description: Failure of copying files with lustre special EAs.
3299 Details : Client side always return success for setxattr call for lustre
3300 special xattr (currently only "trusted.lov").
3305 Description: Refcount LNET uuids
3306 Details : The global LNET uuid list grew linearly with every startup;
3307 refcount repeated list entries instead of always adding to
3310 Severity : enhancement
3312 Description: Dynamic service threads
3313 Details : Within a small range, start extra service threads
3314 automatically when the request queue builds up.
3317 Frequency : mixed-endian client/server environments
3319 Description: mixed-endian crashes
3320 Details : The new msg_v2 system had some failures in mixed-endian
3323 Severity : enhancement
3325 Description: Easy OST removal
3326 Details : OSTs can be permanently deactivated with e.g. 'lctl
3327 conf_param lustre-OST0001.osc.active=0'
3329 Severity : enhancement
3331 Description: MGS proc entries
3332 Details : Added basic proc entries for the MGS showing what filesystems
3335 Severity : enhancement
3337 Description: provide MGS failover
3338 Details : Added config lock reacquisition after MGS server failover.
3340 Severity : enhancement
3342 Description: add Linux 2.4 support
3343 Details : Added support for RHEL 2.4.21 kernel for 1.6 servers and clients
3347 Description: a large application tries to do I/O to the same resource and dies
3348 in the middle of it.
3349 Details : Check the req->rq_arrival time after the call to
3350 ost_brw_lock_get(), but before we do anything about
3351 processing it & sending the BULK transfer request. This
3352 should help move old stale pending locks off the queue as
3353 quickly as obd_timeout.
3356 Frequency : when an incorrect nid is specified during startup
3358 Description: ptlrpc connect to non-existant node causes kernel crash
3359 Details : LNET can't be re-entered from an event callback, which
3360 happened when we expire a message after the export has been
3361 cleaned up. Instead, hand the zombie cleanup off to another
3364 Severity : enhancement
3366 Description: plain/inodebits lock performance improvement
3367 Details : Grouping plain/inodebits in granted list by their request modes
3368 and bits policy, thus improving the performance of search through
3372 Frequency : only if OST filesystem is corrupted
3374 Description: client incorrectly hits assertion in ptlrpc_replay_req()
3375 Details : for a short time RPCs with bulk IO are in the replay list,
3376 but replay of bulk IOs is unimplemented. If the OST filesystem
3377 is corrupted due to disk cache incoherency and then replay is
3378 started it is possible to trip an assertion. Avoid putting
3379 committed RPCs into the replay list at all to avoid this issue.
3382 Frequency : liblustre (e.g. catamount) on a large cluster with >= 8 OSTs/OSS
3384 Description: System hang on startup
3385 Details : This bug allowed the liblustre (e.g. catamount) client to
3386 return to the app before handling all startup RPCs. This
3387 could leave the node unresponsive to lustre network traffic
3388 and manifested as a server ptllnd timeout.
3390 Severity : enhancement
3392 Description: Add "/proc/sys/lustre/debug_peer_on_timeout"
3393 Details : liblustre envirable: LIBLUSTRE_DEBUG_PEER_ON_TIMEOUT
3394 boolean to control whether to print peer debug info when a
3395 client's RPC times out.
3398 Frequency : only for kernels with patches from Lustre below 1.4.3
3400 Description: Remove old rdonly API
3401 Details : Remove old rdonly API which unused from at least lustre 1.4.3
3404 Frequency : only for devices with external journals
3406 Description: Set external device read-only also
3407 Details : During a commanded failover stop, we set the disk device
3408 read-only while the server shuts down. We now also set any
3409 external journal device read-only at the same time.
3412 Frequency : when upgrading from 1.4 while trying to change parameters
3414 Description: The wrong (new) MDC name was used when setting parameters for
3415 upgraded MDT's. Also allows changing of OSC (and MDC)
3416 parameters if --writeconf is specified at tunefs upgrade time.
3419 Frequency : when setting specific ost indicies
3421 Description: QOS code breaks on skipped indicies
3422 Details : Add checks for missing OST indicies in the QOS code, so OSTs
3423 created with --index need not be sequential.
3425 Severity : enhancement
3427 Description: Add uninit_groups feature to ldiskfs2 to speed up e2fsck
3428 Details : The uninit_groups feature works in conjunction with the kernel
3429 filesystem code (ldiskfs2 only) and e2fsprogs-1.39-cfs6 to speed
3430 up the pass1 processing of e2fsck. This is a read-only feature
3431 in ldiskfs2 only, so older kernels and current ldiskfs cannot
3432 mount filesystems that have had this feature enabled.
3434 Severity : enhancement
3436 Description: Improve multi-block allocation algorithm to avoid fragmentation
3437 Details : The mballoc3 code (ldiskfs2 only) adds new mechanisms to improve
3438 allocation locality and avoid filesystem fragmentation.
3440 ------------------------------------------------------------------------------
3442 2007-04-01 Cluster File Systems, Inc. <info@clusterfs.com>
3444 * Support for kernels:
3445 2.4.21-47.0.1.EL (RHEL 3)
3446 2.6.5-7.283 (SLES 9)
3447 2.6.9-42.0.10.EL (RHEL 4)
3448 2.6.12.6 vanilla (kernel.org)
3449 2.6.16.27-0.9 (SLES 10)
3450 * Recommended e2fsprogs version: 1.39.cfs5
3452 * Note that reiserfs quotas are disabled on SLES 10 in this kernel
3456 Frequency : occasional, depends on client load and configuration
3457 Bugzilla : 12181, 12203
3458 Description: data loss for recently-modified files
3460 Details : In some cases it is possible that recently written or created
3461 files may not be written to disk in a timely manner (this should
3462 normally be within 30s unless client IO load is very high).
3463 The problem appears as zero-length files or files that are a
3464 multiple of 1MB in size after a client crash or client eviction
3465 that are missing data at the end of the file.
3467 This problem is more likely to be hit on clients where files are
3468 repeatedly created and unlinked in the same directory, clients
3469 have a large amount of RAM, have many CPUs, the filesystem has
3470 many OSTs, the clients are rebooted frequently, and/or the files
3471 are not accessed by other nodes after being written.
3473 The presence of the problem can be detected by looking at
3474 /proc/sys/fs/inode-state. If the first number (nr_inodes) is
3475 smaller than the second (nr_unused) then dirty files will not
3476 be flushed automatically to disk. "sync; sleep 10" should be
3477 run several times on the node before unmounting it to update
3478 Lustre (this is also safe to run on nodes without this problem).
3480 There is also a related kernel bug in the RHEL4 4 2.6.9 kernel
3481 that can cause this same problem, so customers using that kernel
3482 also need to update the kernel in addition to Lustre. In order
3483 to properly fix this bug, the RHEL3 2.4.21 kernel is also updated.
3485 It is normal that files written just before a client crash (less
3486 than 30s) may not yet have been flushed to disk, even for local
3490 Frequency : frequent on thin XT3 nodes
3492 Description: UUID collision on thin XT3 Linux nodes
3493 Details : UUIDs on Compute Node Linux XT3 nodes were not generated
3494 randomly, since we relied on an insufficiently-seeded PRNG.
3499 Description: OSS hangs after "All ost request buffers busy"
3500 Details : A deadlock between quota and journal operations caused OSS
3501 hangs after printing "All ost request buffers busy."
3504 Frequency : always on liblustre builds
3506 Description: Cleanup compiler warnings on liblustre
3509 Frequency : always on liblustre builds on XT3
3511 Description: LC_CONFIG_CDEBUG don't run while build liblustre on XT3.
3515 Description: Addition of EXT3_FEATURE_RO_COMPAT_DIR_NLINKS flag for
3516 > 32000 subdirectories
3517 Details : Add EXT3_FEATURE_RO_COMPAT_DIR_NLINK flag to
3518 EXT3_FEATURE_RO_COMPAT_SUPP. This flag will be set whenever
3519 subdirectory count crosses 32000. This will aid e2fsck to
3520 correctly handle more than 32000 subdirectories.
3523 Frequency : liblustre (e.g. catamount) on a large cluster with >= 8 OSTs/OSS
3525 Description: System hang on startup
3526 Details : This bug allowed the liblustre (e.g. catamount) client to
3527 return to the app before handling all startup RPCs. This
3528 could leave the node unresponsive to lustre network traffic
3529 and manifested as a server ptllnd timeout.
3531 Severity : enhancement
3533 Description: Add "/proc/sys/lustre/debug_peer_on_timeout"
3534 (liblustre envirable: LIBLUSTRE_DEBUG_PEER_ON_TIMEOUT)
3535 boolean to control whether to print peer debug info when a
3536 client's RPC times out.
3541 Description: make O_SYNC working on 2.6 kernels
3542 Details : 2.6 kernels use different method for mark pages for write,
3543 so need add a code to lustre for O_SYNC work.
3548 Description: Failure to close file and release space on NFS
3549 Details : Put inode details into lock acquired in ll_intent_file_open.
3550 Use mdc_intent_lock in ll_intent_open to properly
git://git.whamcloud.com / fs / lustre-release.git / blob