[Lustre-discuss] odd kernel crash after a heartbeat failover

[John White]

This is actually happening repeatedly, any idea if this is a lustre-side error?
Apr 15 14:37:57 n0008.lustre kernel: Unable to handle kernel NULL pointer dereference at 0000000000000000 RIP:  
Apr 15 14:37:57 n0008.lustre kernel: <2>LDISKFS-fs error (device dm-7) in ldiskfs_reserve_inode_write: Journal has aborted 
Apr 15 14:37:57 n0008.lustre kernel: Oops: 0002 [1] SMP  
Apr 15 14:37:57 n0008.lustre kernel: Oops: 0002 [1] SMP  
Apr 15 14:37:57 n0008.lustre kernel: last sysfs file: /block/dm-7/dev 
Apr 15 14:37:57 n0008.lustre kernel: RIP  [<ffffffff88abc375>] :jbd:journal_commit_transaction+0xc33/0x132e 
Apr 15 14:37:57 n0008.lustre kernel: CR2: 0000000000000000 
Apr 15 14:37:57 n0008.lustre kernel: CR2: 0000000000000000 

----------------
John White
High Performance Computing Services (HPCS)
(510) 486-7307
One Cyclotron Rd, MS: 50B-3209C
Lawrence Berkeley National Lab
Berkeley, CA 94720








On Apr 15, 2010, at 1:10 PM, John White wrote:

> Hello Folks,
> 	We just had a very odd crash after a heartbeat failover that may or may not be related to each other.  I'm not specifically sure if this was an IO error on the disk (I see no actual EIO, just the journal commit crash).  Any ideas?  The FS went through recovery just fine and doesn't appear to have any corruption:
> [...]
> Apr 15 11:49:32 n0007.lustre heartbeat: [10940]: info: mach_down takeover complete. 
> Apr 15 12:09:55 n0007.lustre kernel: Unable to handle kernel NULL pointer dereference at 0000000000000000 RIP:  
> Apr 15 12:09:55 n0007.lustre kernel:  [<ffffffff88abc375>] :jbd:journal_commit_transaction+0xc33/0x132e 
> Apr 15 12:09:55 n0007.lustre kernel: Oops: 0002 [1] SMP  
> Apr 15 12:09:55 n0007.lustre kernel: Oops: 0002 [1] SMP  
> Apr 15 12:09:55 n0007.lustre kernel: last sysfs file: /block/dm-3/dev 
> Apr 15 12:09:55 n0007.lustre kernel: RIP  [<ffffffff88abc375>] :jbd:journal_commit_transaction+0xc33/0x132e 
> Apr 15 12:09:55 n0007.lustre kernel: CR2: 0000000000000000 
> Apr 15 12:09:55 n0007.lustre kernel: CR2: 0000000000000000 
> Apr 15 12:13:25 n0006.lustre kernel: LustreError: dumping log to /tmp/lustre-log.1271358805.4890 
> Apr 15 12:13:25 n0006.lustre kernel: LustreError: dumping log to /tmp/lustre-log.1271358805.3719 
> Apr 15 12:13:25 n0006.lustre kernel: LustreError: dumping log to /tmp/lustre-log.1271358805.3719 
> Apr 15 12:13:25 n0006.lustre kernel: LustreError: dumping log to /tmp/lustre-log.1271358805.4807 
> Apr 15 12:13:26 n0006.lustre kernel: LustreError: dumping log to /tmp/lustre-log.1271358806.3725 
> Apr 15 12:13:30 n0006.lustre kernel: LustreError: dumping log to /tmp/lustre-log.1271358810.3714 
> Apr 15 12:13:30 n0006.lustre kernel: LustreError: dumping log to /tmp/lustre-log.1271358810.4796 
> Apr 15 12:13:30 n0006.lustre kernel: LustreError: dumping log to /tmp/lustre-log.1271358810.3740 
> Apr 15 12:13:30 n0006.lustre kernel: LustreError: dumping log to /tmp/lustre-log.1271358810.4991 
> Apr 15 12:13:39 n0006.lustre kernel: LustreError: dumping log to /tmp/lustre-log.1271358819.3727 
> Apr 15 12:13:39 n0006.lustre kernel: LustreError: dumping log to /tmp/lustre-log.1271358819.5109 
> Apr 15 12:13:39 n0006.lustre kernel: LustreError: dumping log to /tmp/lustre-log.1271358819.5072 
> Apr 15 12:13:39 n0006.lustre kernel: LustreError: dumping log to /tmp/lustre-log.1271358819.4812 
> Apr 15 12:13:40 n0006.lustre kernel: LustreError: dumping log to /tmp/lustre-log.1271358820.3720 
> Apr 15 12:13:41 n0006.lustre kernel: LustreError: dumping log to /tmp/lustre-log.1271358821.3732 
> Apr 15 12:13:41 n0006.lustre kernel: LustreError: dumping log to /tmp/lustre-log.1271358821.5047 
> Apr 15 12:13:41 n0006.lustre kernel: LustreError: dumping log to /tmp/lustre-log.1271358821.4862 
> Apr 15 12:24:09 n0006.lustre kernel: LustreError: dumping log to /tmp/lustre-log.1271359449.3725
> 
> 
> logs available upon request.
> ----------------
> John White
> High Performance Computing Services (HPCS)
> (510) 486-7307
> One Cyclotron Rd, MS: 50B-3209C
> Lawrence Berkeley National Lab
> Berkeley, CA 94720
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