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),
+ 2.6.18-92.1.22.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)
+ (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
* 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 : 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 : normal
+Frequency : race on file read and write
+Bugzilla : 16417
+Description: Lustre doesn't delete files
+Details : Clients drop lock reference and release openhandle when they find
+ stale inode.
+
+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.
+
+Severity : major
+Frequency : Only on FC kernels 2.6.22+
+Bugzilla : 16303
+Description: oops in statahead
+Details : Do not drop reference count for the dentry from VFS when lookup,
+ VFS will do that by itself.
+
+Severity : enhancement
+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.
+
+Severity : major
+Bugzilla : 16561
+Description: Hitting mdc_commit_close() ASSERTION
+Details : Properly handle request reference release in
+ 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
+Frequency : only patchless client
+Description: add workaround for race between add/remove dentry from hash
+
+Severity : enhancement
+Bugzilla : 16845
+Description: Allow OST glimpses to return PW locks
+
+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.
Severity : normal
Bugzilla : 16907
Bugzilla : 16750
Description: service mount cannot take device name with ":"
Details : Only when device name contains ":/" will mount treat it as
- client mount.
+ client mount.
Severity : normal
Bugzilla : 15927
Frequency : rare
Description: replace ptlrpcd with the statahead thread to interpret the async
- statahead RPC callback
+ statahead RPC callback
Severity : normal
Bugzilla : 16611
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
Bugzilla : 16566
Description: Upcall on Lustre log has been dumped
Details : Allow for a user mode script to be called once a Lustre log has
- been dumped. It passes the filename of the dumped log to the
+ been dumped. It passes the filename of the dumped log to the
script, the location of the script can be specified via
/proc/sys/lnet/debug_log_upcall.
Severity : minor
Bugzilla : 16583
Frequency : rare
-Description: avoid messages about idr_remove called for id which is not allocated.
-Details : Move assigment s_dev for clustered nfs to end of initialization, for
- avoid problem with error handling.
+Description: avoid idr_remove called for id which is not allocated.
+Details : Move assigment s_dev for clustered nfs to end of initialization,
+ to avoid problem with error handling.
Severity : minor
Bugzilla : 16109
Frequency : rare
Description: avoid Already found the key in hash [CONN_UNUSED_HASH] messages
-Details : When connection is reused this not moved from CONN_UNUSED_HASH into
- CONN_USED_HASH and this prodice warning when put connection again
- in unused hash.
+Details : When connection is reused this not moved from CONN_UNUSED_HASH
+ 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.
Bugzilla : 16237
Description: Early reply size mismatch, MGC loses connection
Details : Apply the MGS_CONNECT_SUPPORTED mask at reconnect time so
- the connect flags are properly negotiated.
+ 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
Severity : enhancement
Bugzilla : 16581
Description: Add man pages for llobdstat(8), llstat(8), plot-llstat(8),
- : l_getgroups(8), lst(8), routerstat(8)
+ : l_getgroups(8), lst(8), routerstat(8)
Details : included man pages for llobdstat(8), llstat(8),
- : plot-llstat(8), l_getgroups(8), lst(8), routerstat(8)
+ : plot-llstat(8), l_getgroups(8), lst(8), routerstat(8)
Severity : enhancement
Bugzilla : 16091
Description: configure's --enable-quota should check the
- : kernel .config for CONFIG_QUOTA
+ : kernel .config for CONFIG_QUOTA
Details : configure is terminated if --enable-quota is passed but
- : no quota support is in kernel
+ : no quota support is in kernel
Severity : normal
Bugzilla : 13139
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
Bugzilla : 11089
Description: organize the server-side client stats on per-nid basis
Details : Change the structure of stats under obdfilter and mds to
- New structure:
- +- exports
- +- nid#1
- | + stats
- | + uuids
- +- nid#2...
- +- clear
- The "uuid"s file would list the uuids of _active_ exports.
- And the clear entry is to clear all stats and stale nids.
+ New structure:
+ +- exports
+ +- nid#1
+ | + stats
+ | + uuids
+ +- nid#2...
+ +- clear
+ The "uuid"s file would list the uuids of _active_ exports.
+ And the clear entry is to clear all stats and stale nids.
Severity : enhancement
Bugzilla : 11270
Bugzilla : 15346
Description: skiplist implementation simplification
Details : skiplists are used to group compatible locks on granted list
- that was implemented as tracking first and last lock of each lock group
- the patch changes that to using doubly linked lists
+ that was implemented as tracking first and last lock of each
+ lock group the patch changes that to using doubly linked lists
Severity : normal
Bugzilla : 15574
Description: MDS LBUG: ASSERTION(!IS_ERR(dchild))
Details : Change LASSERTs to client eviction (i.e. abort client's recovery)
- because LASSERT on both the data supplied by a client, and the data
- on disk is dangerous and incorrect.
+ because LASSERT on both the data supplied by a client, and the
+ data on disk is dangerous and incorrect.
Severity : enhancement
Bugzilla : 10718
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.
Bugzilla : 10555
Description: Add a FIEMAP(FIle Extent MAP) ioctl
Details : FIEMAP ioctl will allow an application to efficiently fetch the
- extent information of a file. It can be used to map logical blocks
- in a file to physical blocks in the block device.
+ extent information of a file. It can be used to map logical blocks
+ in a file to physical blocks in the block device.
Severity : normal
Bugzilla : 15198
Description: LDLM soft lockups - improvement
Details : It is be possible to send the lock handle along with each read
- or write request because the client is already doing a lock match
- itself so there isn't any reason the OST should have to re-do that
- search.
+ or write request because the client is already doing a lock match
+ itself so there isn't any reason the OST should have to re-do that
+ search.
+
+Severity : normal
+Frequency : only on Cray X2
+Bugzilla : 16813
+Description: X2 build failures
+Details : fix build failures on Cray X2.
+
+Severity : normal
+Bugzilla : 2066
+Description: xid & resent requests
+Details : Initialize RPC XID from clock at startup (randomly if clock is
+ bad).
+
+Severity : enhancement
+Bugzilla : 14095
+Description: Add lustre_start utility to start or stop multiple Lustre servers
+ from a CSV file.
+
+Severity : major
+Bugzilla : 17024
+Description: Lustre GPF in {:ptlrpc:ptlrpc_server_free_request+373}
+Details : In case of memory pressure, list_del() can be called twice on
+ req->rq_history_list, causing a kernel oops.
+
+Severity : normal
+Bugzilla : 17026
+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: Convert some comments to new format.
+Details : Update documenting comments to match doxygen conventions.
+
+Severity : normal
+Bugzilla : 16450
+Description: Grammar fixes.
+Details : A couple of trivial spelling fixes.
+
+Severity : normal
+Bugzilla : 16450
+Description: OSD_COUNTERS-mandatory
+Details : Make previously optional ->oti_{w,r}_locks sanity checks mandatory
+ to simplify the code.
+
+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
--------------------------------------------------------------------------------
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
Bugzilla : 4900
Description: Async OSC create to avoid the blocking unnecessarily.
Details : If a OST has no remain object, system will block on the creating
- when need to create a new object on this OST. Now, ways use
- pre-created objects when available, instead of blocking on an
- empty osc while others are not empty. If we must block, we block
- for the shortest possible period of time.
+ when need to create a new object on this OST. Now, ways use
+ pre-created objects when available, instead of blocking on an
+ empty osc while others are not empty. If we must block, we block
+ for the shortest possible period of time.
+
+Severity : major
+Bugzilla : 11710
+Description: improve handling recoverable errors
+Details : if request processig with error which can be recoverable on server
+ request should be resend, otherwise page released from cache and
+ marked as error.
Severity : enhancement
Bugzilla : 12702
for details.
* bug fixes
-
-
Severity : enhancement
Bugzilla : 8007
Description: MountConf
git://git.whamcloud.com / fs / lustre-release.git / blobdiff