more information, please refer to bugzilla 17630.
Severity : enhancement
+Bugzilla : 18539
+Description: Communicate OST degraded/readonly state via statfs to MDS
+Details : Flags in the statfs returned from OSTs indicate whether the
+ OST is in a degraded RAID state, or if the filesystem has
+ turned read-only after a filesystem error is detected.
+
+Severity : enhancement
Bugzilla : 19808
Description: Vanilla kernel 2.6.30 patchless support.
Severity : normal
Bugzilla : 20122
+Frequency : rare
Description: don't panic if EPROTO was hit when reading symlink
Details : correctly handling request reference in error cases.
Severity : normal
Bugzilla : 17545
+Frequency : common
Description: open sometimes returns ENOENT instead of EACCES
Details : checking permission should be part of open part of mds_open, not
- lookup part. so server should be set DISP_OPEN_OPEN disposition
- before starting permission check.
- Also not need revalidate dentry if client already have LOOKUP lock.
+ lookup part. so server should be set DISP_OPEN_OPEN disposition
+ before starting permission check.
+ Also not need revalidate dentry if client already have LOOKUP lock.
Severity : normal
Bugzilla : 19854
Description: enable client interface failover
+Frequency : on servers with multiple network interfaces
Details : When a child reconnects from another NID, properly update export
- nid hash position and ldlm reverse import.
+ nid hash position and ldlm reverse import.
Severity : enhancement
Bugzilla : 18801
Severity : normal
Bugzilla : 19529
Description: Avoid deadlock for local client writes
+Frequency : only on systems with clients writing to an OST on the same node
Details : Use new OBD_BRW_MEMALLOC flag to notify OST about writes in the
memory freeing context. This allows OST threads to set the
PF_MEMALLOC flag on task structures in order to allocate memory
Severity : normal
Bugzilla : 18624
-Description: Unable to run several mkfs.lustre on loop devices at the same
- time.
+Frequency : only during format of test systems
+Description: Unable to run several mkfs.lustre on loop devices at the same time
Details : mkfs.lustre returns error 256 on the concurrent loop devices
formatting. The solution is to proper handle the error.
Severity : normal
Bugzilla : 18674
+Frequency : occasionally during network problems
Description: client not allowed to reconnect to OST because of active request
Details : abort bulk requests received by the OST once the client has timed
out since the client will resend the request anyway. The client
array and we can use qos_shrink_lsm for allocate correct lsm.
Severity : normal
-Frequency : rare
+Frequency : rare, only when quota is enabled
Bugzilla : 18793
Descriptoin: OSS complains "too many blocks" and crashes
Details : In filter_commitrw_write():