tbd Sun Microsystems, Inc.
* version 2.0.0
* Support for kernels:
- 2.6.16.60-0.27 (SLES 10),
- 2.6.18-92.1.10.el5 (RHEL 5),
+ 2.6.16.60-0.33 (SLES 10),
+ 2.6.18-128.1.1.el5 (RHEL 5),
2.6.22.14 vanilla (kernel.org).
* Client support for unpatched kernels:
- (see http://wiki.lustre.org/index.php?title=Patchless_Client)
- 2.6.16 - 2.6.21 vanilla (kernel.org)
- * Recommended e2fsprogs version: 1.40.11-sun1
+ (see http://wiki.lustre.org/index.php?title=Patchless_Client)
+ 2.6.16 - 2.6.21 vanilla (kernel.org)
+ * Recommended e2fsprogs version: 1.41.5.sun2
* Note that reiserfs quotas are disabled on SLES 10 in this kernel.
* RHEL 4 and RHEL 5/SLES 10 clients behaves differently on 'cd' to a
- removed cwd "./" (refer to Bugzilla 14399).
+ removed cwd "./" (refer to Bugzilla 14399).
* File join has been disabled in this release, refer to Bugzilla 16929.
Severity : enhancement
+Bugzilla : 17671
+Description: Update OFED support to 1.4.1
+
+Severity : normal
+Bugzilla : 18645
+Description: Reduce small size read RPC
+Details : Set read-ahead limite for every file and only do read-ahead when
+ available read-ahead pages are bigger than 1M to avoid small size
+ read RPC.
+
+Severity : enhancement
+Bugzilla : 17974
+Description: add lazystatfs mount option to allow statfs(2) to skip down OSTs
+Details : allow skip disconnected ost for send statfs request and hide error
+ in this case.
+
+Severity : major
+Frequency : rare
+Bugzilla : 18810
+Description: fix racy locking of mballoc block bitmaps causing BUG
+Details : The locking of the mballoc buddy bitmap and the in-memory
+ block bitmap was using two different spin locks in some
+ cases. This made it possible to incorrectly access the
+ mballoc bitmap while another process was modifying it,
+ causing a sanity assertion to fail. While no on-disk corruption
+ was reported, there was some risk of this happening.
+
+Severity : normal
+Frequency : rare, on llog test 6
+Bugzilla : 16839
+Descriptoin: don't allow connect to already connected import
+Details : allowing connect to already connected import is hide connecting problem.
+
+Severity : normal
+Frequency : rare
+Bugzilla : 18902
+Descriptoin: allow kill process which wait statahead result
+Details : for some reasons 'ls' can stick in waiting result from statahead,
+ in this case need way for kill this process.
+
+Severity : enhancement
+Bugzilla : 18798
+Description: Add state history info file, enhance import info file
+Details : Track import connection state changes in a new osc/mdc proc file;
+ add overview-type data to the osc/mdc import proc file.
+
+Severity : enhancement
+Bugzilla : 17536
+Description: MDS create should not wait for statfs RPC while holding DLM lock.
+
+Severity : enhancement
+Bugzilla : 18289
+Description: Update to RHEL5U3 kernel-2.6.18-128.1.1.el5.
+
+Severity : normal
+Frequency : normal
+Bugzilla : 12069
+Descriptoin: OST grant too much space to client even there are not enough space.
+Details : Client will shrink its grant cache to OST if there are no write
+ activity over 6 mins (GRANT_SHRINK_INTERVAL), and OST will retrieve
+ this grant cache if there are already not enough avaible space
+ (left_space < total_clients * 32M).
+
+Severity : normal
+Frequency : start MDS on uncleanly shutdowned MDS device
+Bugzilla : 16839
+Descriptoin: ll_sync thread stay in waiting mds<>ost recovery finished
+Details : stay in waiting mds<>ost recovery finished produce random bugs
+ due race between two ll_sync thread for one lov target. send
+ ACTIVATE event only if connect realy finished and import have
+ FULL state.
+
+Severity : normal
+Frequency : rare, connect and disconnect target at same time
+Bugzilla : 17310
+Descriptoin: ASSERTION(atomic_read(&imp->imp_inflight) == 0
+Details : don't call obd_disconnect under lov_lock. this long time
+ operation and can block ptlrpcd which answer to connect request.
+
+Severity : normal
+Frequency : rare
+Bugzilla : 18154
+Descriptoin: don't lose wakeup for imp_recovery_waitq
+Details : recover_import_no_retry or invalidate_import and import_close can
+ both sleep on imp_recovery_waitq, but we was send only one wakeup
+ to sleep queue.
+
+Severity : normal
+Frequency : always with long access acl
+Bugzilla : 17636
+Descriptoin: mds can't pack reply with long acl.
+Details : mds don't control size of acl but they limited by reint/getattr
+ reply buffer.
+
+Severity : enhancement
+Bugzilla : 18061
+Description: Update to SLES10 kernel-2.6.16.60-0.33.
+
+Severity : enhancement
+Bugzilla : 18060
+Description: Update to RHEL5 kernel-2.6.18-92.1.22.el5.
+
+Severity : normal
+Frequency : start MDS on uncleanly shutdowned MDS device
+Bugzilla : 18049
+Descriptoin: aborting recovery hang on MDS
+Details : don't throttle destroy RPCs for the MDT.
+
+Severity : major
+Frequency : on remount
+Bugzilla : 18018
+Description: external journal device not working after the remount
+Details : clear dev_rdonly flag for external journal devices in
+ blkdev_put()
+
+Severity : minor
+Frequency : rare
+Bugzilla : 17802
+Description: shutdown vs evict race
+Details : client_disconnect_export vs connect request race.
+ if client will evicted at this time - we start invalidate
+ thread without referece to import and import can be freed
+ at same time.
+
+Severity : normal
+Frequency : rare, need acl's on inode.
+Bugzilla : 16492
+Description: client can't handle ost additional correctly
+Details : if ost was added after client connected to mds client can have
+ hit lnet_try_match_md ... to big messages to wide striped files.
+ in this case need teach client to handle config events about add
+ lov target and update client max ea size at that event.
+
+Severity : enhancement
+Bugzilla : 15699
+Description: Changelogs
+Details : Changelogs are a lightweight mechanism to track filesystem
+ metadata and namespace changes. The changelog is recorded
+ permanently on the MDTs, and is periodically "consumed" / purged
+ when records are no longer needed.
+
+Severity : enhancement
+Bugzilla : 15957
+Description: compact fld format with extents
+Details : Store range of seq rather than every seq in FLD. Seq
+ controller update FLD rather than clients. In Case of CMD, mdt0
+ has FLD, all other metadata server act as non persistent proxy
+ for FLD queries and cache fld entries in fld cache.
+
+Severity : normal
+Frequency : rare
+Bugzilla : 16081
+Description: don't skip ost target if they assigned to file
+Details : Drop slow OSCs if we can, but not for requested start idx.
+ This means "if OSC is slow and it is not the requested
+ start OST, then it can be skipped, otherwise skip it only
+ if it is inactive/recovering/out-of-space.
+
+Severity : normal
+Bugzilla : 16080
+Description: more cleanup in mds_lov
+Details : not send LOV EA under replay, we can't know about they size at this
+ time. Don't allow client connect to mds before any ost connected,
+ for avoid problems with LOV EA size and returning EIO to client.
+
+Severity : enhancement
+Bugzilla : 11826
+Description: Interoperability at server side (Disk interoperability)
+
+Severity : enhancement
+Bugzilla : 17201
+Description: Update to RHEL5 kernel-2.6.18-92.1.17.el5.
+
+Severity : enhancement
+Bugzilla : 17458
+Description: Update to SLES10 SP2 kernel-2.6.16.60-0.31.
+
+Severity : enhancement
+Bugzilla : 14166
+Description: New client IO stack (CLIO).
+
+Severity : enhancement
+Bugzilla : 15393
+Description: Commit on sharing. Eliminate inter-client dependencies between
+ uncommitted transactions by doing transaction commits.
+ Thereby clients may recovery independently.
+
+Severity : normal
+Frequency : Create a symlink file with a very long name
+Bugzilla : 16578
+Description: ldlm_cancel_pack()) ASSERTION(max >= dlm->lock_count + count)
+Details : If there is no extra space in the request for early cancels,
+ ldlm_req_handles_avail() returns 0 instead of a negative value.
+
+Severity : enhancement
+Bugzilla : 1819
+Description: Add /proc entry for import status
+Details : The mdc, osc, and mgc import directories now have
+ an import directory that contains useful import data for debugging
+ connection problems.
+
+Severity : enhancement
Bugzilla : 15966
Description: Re-disable certain /proc logging
Details : Enable and disable client's offset_stats, extents_stats and
- extents_stats_per_process stats logging on the fly.
+ extents_stats_per_process stats logging on the fly.
Severity : major
Frequency : Only on FC kernels 2.6.22+
Bugzilla : 16643
Description: Generic /proc file permissions
Details : Set /Proc file permissions in a more generic way to enable non-
- root users operate on some /proc files.
+ root users operate on some /proc files.
Severity : major
Bugzilla : 16561
Description: Hitting mdc_commit_close() ASSERTION
Details : Properly handle request reference release in
- ll_release_openhandle().
+ ll_release_openhandle().
+
+Severity : major
+Bugzilla : 14840
+Description: quota recovery deadlock during mds failover
+Details : This patch includes att18982, att18236, att18237 in bz14840.
+ Slove the problems:
+ 1. fix osts hang when mds does failover with quotaon
+ 2. prevent watchdog storm when osts threads wait for the
+ recovery of mds
Severity : normal
Bugzilla : 15975
Severity : minor
Bugzilla : 16717
Description: LBUG when llog conf file is full
-Details : When llog bitmap is full, ENOSPC should be returned for plain
- log.
+Details : When llog bitmap is full, ENOSPC should be returned for plain log.
Severity : normal
Bugzilla : 16907
Frequency : on recovery
Description: I/O failures after umount during fail back
Details : if client reconnected to restarted server we need join to recovery
- instead of find server handler is changed and process self eviction
- with cancel all locks.
+ instead of find server handler is changed and process self
+ eviction with cancel all locks.
Severity : enhancement
Bugzilla : 16633
into CONN_USED_HASH and this prodice warning when put connection
again in unused hash.
+
Severity : enhancement
Bugzilla : 15899
Description: File striping can now be set to use an arbitrary pool of OSTs.
-
+
Severity : enhancement
Bugzilla : 16573
Description: Export bytes_read/bytes_write count on OSC/OST.
the connect flags are properly negotiated.
Severity : normal
+Frequency : often
+Bugzilla : 16125
+Description: quotas are not honored with O_DIRECT
+Details : all writes with the flag O_DIRECT will use grants which leads to
+ this problem. Now using OBD_BRW_SYNC to guard this.
+
+Severity : normal
+Bugzilla : 15058
+Description: add quota statistics
+Details : 1. sort out quota proc entries and proc code.
+ 2. add quota statistics
+
+Severity : enhancement
+Bugzilla : 13058
+Description: enable quota support for HEAD.
+
+Severity : normal
Bugzilla : 16006
Description: Properly propagate oinfo flags from lov to osc for statfs
Details : restore missing copy oi_flags to lov requests.
Severity : normal
Bugzilla : 15210
-Description: add recount protection for osc callbacks, so avoid panic on shutdown
+Description: add refcount protection for osc callbacks, avoid panic on shutdown
Severity : normal
Bugzilla : 12653
Severity : minor
Bugzilla : 15837
Description: oops in page fault handler
-Details : kernel page fault handler can return two special 'pages' in error case, don't
- try dereference NOPAGE_SIGBUS and NOPAGE_OMM.
+Details : kernel page fault handler can return two special 'pages' in error
+ case, don't try dereference NOPAGE_SIGBUS and NOPAGE_OMM.
Severity : minor
Bugzilla : 15716
Description: timeout with invalidate import.
-Details : ptlrpcd_check call obd_zombie_impexp_cull and wait request which should be
- handled by ptlrpcd. This produce long age waiting and -ETIMEOUT
- ptlrpc_invalidate_import and as result LASSERT.
+Details : ptlrpcd_check call obd_zombie_impexp_cull and wait request which
+ should be handled by ptlrpcd. This produce long age waiting and
+ -ETIMEOUT ptlrpc_invalidate_import and as result LASSERT.
Severity : enhancement
Bugzilla : 15741
Severity : major
Bugzilla : 14326
Description: Use old size assignment to avoid deadlock
-Details : This reverts the changes in bugs 2369 and bug 14138 that introduced
+Details : Reverts the changes in bugs 2369 and bug 14138 that introduced
the scheduling while holding a spinlock. We do not need locking
for size in ll_update_inode() because size is only updated from
the MDS for directories or files without objects, so there is no
Frequency : rare, on recovery
Description: read procfs can produce deadlock in some situation
Details : Holding lprocfs lock which send rpc can produce block for destroy
- obd objects and this also block reconnect with -EALREADY. This isn't
- fix all lprocfs bugs - but make it rare.
+ obd objects and this also block reconnect with -EALREADY. This
+ isn't fix all lprocfs bugs - but make it rare.
Severity : enhancement
Bugzilla : 15152
Frequency : occasional
Bugzilla : 13537
Description: Correctly check stale fid, not start epoch if ost not support SOM
-Details : open with flag O_CREATE need set old fid in op_fid3 because op_fid2
- overwrited with new generated fid, but mds can anwer with one of these
- two fids and both is not stale. setattr incorectly start epoch and
- assume will be called done_writeting, but without SOM done_writing
- never called.
+Details : open with flag O_CREATE need set old fid in op_fid3 because
+ op_fid2 was overwritten with new generated fid, but mds can answer
+ with one of these two fids and both is not stale. Setattr
+ incorrectly started an epoch and assume will be called
+ done_writing, but without SOM done_writing ever being called.
Severity : major
Frequency : rare, depends on device drivers and load
Frequency : rare
Bugzilla : 13196
Description: Don't allow skipping OSTs if index has been specified.
-Details : Don't allow skipping OSTs if index has been specified, make locking
- in internal create lots better.
+Details : Don't allow skipping OSTs if index has been specified, make
+ locking in internal create lots better.
Severity : normal
Bugzilla : 12228
Severity : enhancement
Bugzilla : 10786
Description: omit set fsid for export NFS
-Details : fix set/restore device id for avoid EMFILE error and mark lustre fs
- as FS_REQUIRES_DEV for avoid problems with generate fsid.
+Details : fix set/restore device id for avoid EMFILE error and mark lustre
+ fs as FS_REQUIRES_DEV for avoid problems with generate fsid.
Severity : normal
Bugzilla : 13304
Severity : normal
Bugzilla : 15950
Description: Hung threads in invalidate_inode_pages2_range
-Details : The direct IO path doesn't call check_rpcs to submit a new RPC once
- one is completed. As a result, some RPCs are stuck in the queue
- and are never sent.
+Details : The direct IO path doesn't call check_rpcs to submit a new RPC
+ once one is completed. As a result, some RPCs are stuck in the
+ queue and are never sent.
Severity : normal
Bugzilla : 14629
Severity : normal
Bugzilla : 16199
Description: don't always update ctime in ext3_xattr_set_handle()
-Details : Current xattr code updates the inode ctime in ext3_xattr_set_handle.
+Details : Current xattr code updates inode ctime in ext3_xattr_set_handle.
In some cases the ctime should not be updated, for example for
2.0->1.8 compatibility it is necessary to delete an xattr and it
should not update the ctime.
Severity : enhancement
Bugzilla : 14095
Description: Add lustre_start utility to start or stop multiple Lustre servers
- from a CSV file.
+ from a CSV file.
Severity : major
Bugzilla : 17024
Severity : normal
Bugzilla : 17026
-Description: (ptllnd_peer.c:557:kptllnd_peer_check_sends()) ASSERTION(!in_interrupt()) failed
-Details : fix stack overflow in the distributed lock manager by defering export
- eviction after a failed ast to the elt thread instead of handling
- it in the dlm interpret routine.
+Description: kptllnd_peer_check_sends()) ASSERTION(!in_interrupt()) failed
+Details : fix stack overflow in the distributed lock manager by defering
+ export eviction after a failed AST to the elt thread instead of
+ handling it in the dlm interpret routine.
Severity : normal
Bugzilla : 16450
Description: simplify cmm_device freeing logic.
Details : Call cmm_device_free() in the failure path of cmm_device_alloc().
+Severity : normal
+Bugzilla : 16450
+Description: Add lockdep support to dt_object_operations locking interface.
+Details : Augment ->do_{read,write}_lock() prototypes with a `role'
+ parameter indicating lock ordering. Update mdd code to use new
+ locking interface.
+
+Severity : normal
+Bugzilla : 16450
+Description: Introduce failloc constants for lockless IO tests.
+Details : Add two new failloc constants to test lockless IO. Only one of
+ them in implemented---another is checked in yet to be landed
+ core CLIO code.
+
+Severity : normal
+Bugzilla : 16450
+Description: Add lockdep support for inode mutex.
+Details : Introduce and use new LOCK_INODE_MUTEX_PARENT() macro to be used
+ in the situations where Lustre has to lock more than one inode
+ mutex at a time.
+
+Severity : normal
+Bugzilla : 16450
+Description: Add optional invariants checking support.
+Details : Add new LINVRNT() macro, optional on new --enable-invariants
+ configure switch. This macro is to be used for consistency and
+ sanity checks that are too expensive to be left in `production'
+ mode.
+
+Severity : minor
+Bugzilla : 16450
+Description: Zap lock->l_granted_mode with explicit LCK_MINMODE.
+Details : Use LCK_MINMODE rather than 0 to reset lock->l_granted_mode to
+ its initial state.
+
+Severity : normal
+Bugzilla : 16450
+Description: Add lockdep support for ldlm_lock and ldlm_resource.
+Details : Use spin_lock_nested() in (the only) situation where more than
+ one ldlm_lock is locked simultaneously. Also, fix possible
+ dead-lock in ldlm_lock_change_resource() by enforcing particular
+ lock ordering.
+
+Severity : normal
+Bugzilla : 16450
+Description: Use struct ldlm_callback_suite in ldlm_lock_create().
+Details : Instead of specifying each ldlm_lock call-back through separate
+ parameter, wrap them into struct ldlm_callback_suite.
+
+Severity : normal
+Bugzilla : 16450
+Description: Kill join_lru obd method and its callers.
+Details : CLIO uses lock weighting policy to keep locks over mmapped regions
+ in memory---a requirement implemented through ->o_join_lru() obd
+ method in HEAD. Remove this method and its users.
+
+Severity : normal
+Bugzilla : 16450
+Description: Add asynchronous ldlm ENQUEUE completion handler.
+Details : CLIO posts ENQUEUE requests asynchronously through ptlrpcd---a
+ case that stock ldlm_completion_ast() cannot handle as it waits
+ until lock is granted. Introduce new ldlm_completion_ast_async()
+ for this. Also comment ldlm_completion_ast().
+
+Severity : normal
+Bugzilla : 16450
+Description: ldlm_error <-> errno conversion.
+Details : Add functions to map (rather arbitrary) between LDLM error codes
+ and standard errno values. CLIO needs this to prevent LDLM specific
+ constants from escaping ldlm and osc.
+
+Severity : minor
+Bugzilla : 16450
+Description: Kill unused ldlm_handle2lock_ns() function.
+Details : Kill unused ldlm_handle2lock_ns() function.
+
+Severity : normal
+Bugzilla : 16450
+Description: Add lu_ref support to ldlm_lock
+Details : lu_ref support for ldlm_lock and ldlm_resource. See lu_ref patch.
+ lu_ref fields ->l_reference and ->lr_reference are added to ldlm_lock
+ and ldlm_resource. LDLM interface has to be changed, because code that
+ releases a reference on a lock, has to "know" what reference this is.
+ In the most frequent case
+
+ lock = ldlm_handle2lock(handle);
+ ...
+ LDLM_LOCK_PUT(lock);
+
+ no changes are required. When any other reference (received _not_ from
+ ldlm_handle2lock()) is released, LDLM_LOCK_RELEASE() has to be called
+ instead of LDLM_LOCK_PUT().
+
+ Arguably, changes are pervasive, and interface requires some discipline
+ for proper use. On the other hand, it was very instrumental in finding
+ a few leaked lock references.
+
+Severity : normal
+Bugzilla : 16450
+Description: Add ldlm_lock_addref_try().
+Details : Introduce ldlm_lock_addref_try() function (used by CLIO) that
+ attempts to addref a lock that might be being canceled
+ concurrently.
+
+Severity : normal
+Bugzilla : 16450
+Description: Add ldlm_weigh_callback().
+Details : Add new ->l_weigh_ast() call-back to ldlm_lock. It is called
+ by ldlm_cancel_shrink_policy() to estimate lock "value", instead of
+ hard-coded `number of pages' logic.
+
+Severity : normal
+Bugzilla : 16450
+Description: Add lockdep annotations to llog code.
+Details : Use appropriately tagged _nested() locking calls in the places
+ where llog takes more than one ->lgh_lock lock.
+
+Severity : minor
+Bugzilla : 16450
+Description: Add loi_kms_set().
+Details : Wrap kms updates into a helper function.
+
+Severity : minor
+Bugzilla : 16450
+Description: Constify instances of struct lsm_operations.
+Details : Constify instances of struct lsm_operations.
+
+Severity : normal
+Bugzilla : 16450
+Description: lu_conf support.
+Details : On a server, a file system object is uniquely identified
+ by a fid, which is sufficient to locate and load all object
+ state (inode). On a client, on the other hand, more data are
+ necessary instantiate an object. Change lu_object_find() and
+ friends to take additional `lu_conf' argument describing object.
+ Typically this includes layout information.
+
+Severity : normal
+Bugzilla : 16450
+Description: lu_context fixes.
+Details : Introduce new lu_context functions that are needed on the client
+ side, where some system threads (ptlrpcd) are shared by multiple
+ modules, and so cannot be stopped during module shutdown.
+
+Severity : normal
+Bugzilla : 16450
+Description: Add start and stop methods to lu_device_type_operations.
+Details : Introduce two new methods in lu_device_type_operations, that are
+ invoked when first instance of a given type is created and last one
+ is destroyed respectively. This is need by CLIO.
+
+Severity : normal
+Bugzilla : 16450
+Description: Add lu_ref support to struct lu_device.
+Details : Add lu_ref support to lu_object and lu_device. lu_ref is used to
+ track leaked references.
+
+Severity : normal
+Bugzilla : 16450
+Description: Introduce lu_kmem_descr.
+Details : lu_kmem_descr and its companion interface allow to create
+ and destroy a number of kmem caches at once.
+
+Severity : normal
+Bugzilla : 16450
+Description: Fix lu_object finalization race.
+Details : Fix a race between lu_object_find() finding an object and its
+ concurrent finalization. This race is (most likely) not possible
+ on the server, but might happen on the client.
+
+Severity : normal
+Bugzilla : 16450
+Description: Introduce lu_ref interface.
+Details : lu_ref is a debugging module allowing to track references to
+ a given object. It is quite cpu expensive, and has to be
+ explicitly enabled with --enable-lu_ref. See usage description
+ within the patch.
+
+Severity : minor
+Bugzilla : 16450
+Description: Factor lu_site procfs stats into a separate function.
+Details : Separate lu_site stats printing code into a separate function
+ that can be reused on a client.
+
+Severity : minor
+Bugzilla : 16450
+Description: Constify instances of struct {lu,dt,md}_device_operations.
+Details : Constify instances of struct {lu,dt,md}_device_operations.
+
+Severity : normal
+Bugzilla : 16450
+Description: Introduce struct md_site and move meta-data specific parts of
+ struct lu_site here.
+Details : Move md-specific fields out of struct lu_site into special struct
+ md_site, so that lu_site can be used on a client.
+
+Severity : minor
+Bugzilla : 16450
+Description: Kill mdd_lov_destroy().
+Details : Remove unused mdd code.
+
+Severity : minor
+Bugzilla : 16450
+Description: Add st_block checking to multistat.c.
+Details : Add st_block checking to multistat.c.
+
+Severity : normal
+Bugzilla : 16450
+Description: Add lu_ref support to struct obd_device.
+Details : Add lu_ref tracking to obd_device.
+
+Severity : minor
+Bugzilla : 16450
+Description: Kill obd_set_fail_loc().
+Details : Remove unused code.
+
+Severity : normal
+Bugzilla : 16450
+Description: Add special type for ptlrpc_request interpret functions.
+Details : Add lu_env parameter to ->rq_interpreter call-back. NULL is passed
+ there. Actual usage will be in CLIO.
+
+Severity : normal
+Bugzilla : 16450
+Description: Replace RW_LOCK_UNLOCKED() macro with rwlock_init().
+Details : Replace RW_LOCK_UNLOCKED() with rwlock_init() as the former
+ doesn't work with lockdep.
+
+Severity : normal
+Bugzilla : 16450
+Description: Add rwv.c test program.
+Details : New testing program exercising readv(2) and writev(2) (Qian).
+
+Severity : normal
+Bugzilla : 16450
+Description: Add sendfile.c test program.
+Details : New testing program exercising sendfile(2) (Jay).
+
+Severity : minor
+Bugzilla : 16450
+Description: Ratelimit a message that can be very frequent.
+Details : Ratelimit a memory allocation failure message that can
+ be too chatty.
+
+Severity : minor
+Bugzilla : 16450
+Description: Use cdebug_show() in CDEBUG-style macros defined outside of libcfs.
+Details : Use cdebug_show() in CDEBUG-style macros defined outside of libcfs.
+
+Severity : normal
+Bugzilla : 16450
+Description: Liblustre build fixes.
+Details : Liblustre build fixes.
+
+Severity : normal
+Bugzilla : 16450
+Description: libcfs: add cfs_{need,cond}_resched() interface.
+Details : libcfs: add cfs_{need,cond}_resched() definition and
+ implementations for Linux, NT, and liblustre.
+
+Severity : enhancement
+Bugzilla : 12800
+Description: More exported tunables for mballoc
+Details : Add support for tunable preallocation window and new tunables for
+ large/small requests
+
+Severity : normal
+Bugzilla : 16680
+Description: Detect corruption of block bitmap and checking for preallocations
+Details : Checks validity of on-disk block bitmap. Also it does better
+ checking of number of applied preallocations. When corruption is
+ found, it turns filesystem readonly to prevent further corruptions.
+
+Severity : normal
+Bugzilla : 17197
+Description: (rw.c:1323:ll_read_ahead_pages()) ASSERTION(page_idx > ria->ria_stoff) failed
+Details : Once the unmatched stride IO mode is detected, shrink the stride-ahead
+ window to 0. If it does hit cache miss, and read-pattern is still
+ stride-io mode, does not reset the stride window, but also does not
+ increase the stride window length in this case.
+
+Severity : normal
+Bugzilla : 16438
+Frequency : only for big-endian servers
+Description: Check if system is big-endian while mounting fs with extents feature
+Details : Mounting a filesystem with extents feature will fail on big-endian
+ systems since ext3-based ldiskfs is not supported on big-endian
+ systems. This can be over-riden with "bigendian_extents" mount option.
+
+Severity : enhancement
+Bugzilla : 12749
+Description: The root squash functionality
+Details : A security feature, which is to prevent users from being able
+ to mount lustre on their desktop, run as root, and delete
+ all of the files in the filesystem. The goal is accomplished by
+ remapping user id (UID) and group id (GID) of the root user to
+ a UID and GID specified by the system administartor via Lustre
+ configuration management server (MGS). The functionality also
+ allows to specify sets of clients for which the remapping does
+ not apply.
+
+Severity : normal
+Bugzilla : 16860
+Description: Excessive recovery window
+Details : With AT enabled, the recovery window can be excessively long (6000+
+ seconds). To address this problem, we no longer use
+ OBD_RECOVERY_FACTOR when extending the recovery window (the connect
+ timeout no longer depends on the service time, it is set to
+ INITIAL_CONNECT_TIMEOUT now) and clients report the old service
+ time via pb_service_time.
+
+Severity : normal
+Bugzilla : 16522
+Description: Watchdog triggered on MDS failover
+Details : enable OBD_CONNECT_MDT flag when connecting from the MDS so that
+ the OSTs know that the MDS "UUID" can be reused for the same export
+ from a different NID, so we do not need to wait for the export to be
+ evicted
+
+Severity : major
+Frequency : rare, only if using MMP with Linux RAID
+Bugzilla : 17895
+Description: MMP doesn't work with Linux RAID
+Details : While using HA for Lustre servers with Linux RAID, it is possible
+ that MMP will not detect multiple mounts. To make this work we
+ need to unplug the device queue in RAID when the MMP block is being
+ written. Also while reading the MMP block, we should read it from
+ disk and not the cached one.
+
+Severity : enhancement
+Bugzilla : 17187
+Description: open file using fid
+Details : A file can be opened using just its fid, like
+ <mntpt>/.lustre/fid/SEQ:OID:VER - this is needed for HSM and replication
+
+Severity : normal
+Frequency : Only in RHEL5 when mounting multiple ext3 filesystems
+ simultaneously
+Bugzilla : 19184
+Description: "kmem_cache_create: duplicate cache jbd_4k" error message
+Details : add proper locking for creation of jbd_4k slab cache
+
+Severity : normal
+Bugzilla : 19058
+Description: MMP check in ext3_remount() fails without displaying any error
+Details : When multiple mount protection fails during remount, proper error
+ should be returned
+
--------------------------------------------------------------------------------
2007-08-10 Cluster File Systems, Inc. <info@clusterfs.com>
Frequency : during server recovery
Bugzilla : 11203
Description: MDS failing to send precreate requests due to OSCC_FLAG_RECOVERING
-Details : request with rq_no_resend flag not awake l_wait_event if they get a
- timeout.
+Details : request with rq_no_resend flag not awake l_wait_event if they get
+ a timeout.
Severity : minor
Frequency : nfs export on patchless client
this on patchless clients the deathrow inode reaper is turned
off, and we depend on the VM to clean up old inodes. This
dependency was during via the fix for bug 12181.
-
+
--------------------------------------------------------------------------------
2007-04-19 Cluster File Systems, Inc. <info@clusterfs.com>
Description: startup order invariance
Details : MDTs and OSTs can be started in any order. Clients only
require the MDT to complete startup.
-
+
Severity : enhancement
Bugzilla : 4899
Description: parallel, asynchronous orphan cleanup
Details : stripe assignments are now made based on ost space available,
ost previous usage, and OSS previous usage, in order to try
to optimize storage space and networking resources.
-
+
Severity : enhancement
Bugzilla : 4226
Description: Permanently set tunables
Details : All writable /proc/fs/lustre tunables can now be permanently
set on a per-server basis, at mkfs time or on a live system.
-
+
Severity : enhancement
Bugzilla : 10547
Description: Lustre message v2
Description: SPEC SFS validation failure on NFS v2 over lustre.
Details : Changes the blocksize for regular files to be 2x RPC size,
and not depend on stripe size.
-
+
Severity : enhancement
Bugzilla : 9293
Description: Multiple MD RPCs in flight.
Rather --with-portals=<path-to-portals-includes> is used to
enable building on the XT3. In addition to enable XT3 specific
features the option --enable-cray-xt3 must be used.
-
+
Severity : major
Frequency : rare
Bugzilla : 7407
* add hard link support
* change obdfile creation method
* kernel patch changed
-
+
2002-09-19 Peter Braam <braam@clusterfs.com>
* version 0_5_9
* bug fix
git://git.whamcloud.com / fs / lustre-release.git / blobdiff