[Lustre-discuss] OSS crash after LDISKFS-fs error

[Alex Tomas]

I think this is bz13620. rhel4 kernel has a bug when two instances
of same inode can co-exist in the cache. you can find the fix in
https://bugzilla.lustre.org/show_bug.cgi?id=13620

thanks, Alex

Wojciech Turek wrote:
> Hi,
> 
> My lustre environment is: 2.6.9-55.0.9.EL_lustre.1.6.3smp
> 
> One of my OSS's crashed today. Below you can see messages sent by it 
> (storage09) to the syslog (first three lines). Then it died (my guess is 
> with kernel panic) and heartbeat software STONITH that OSS's.
> 
> Nov  9 19:08:44 storage09.beowulf.cluster kernel: LDISKFS-fs error 
> (device dm-5): mb_free_blocks: double-free of inode 38887437's block 
> 155560192(bit 10496 in group 4747)
> Nov  9 19:08:44 storage09.beowulf.cluster kernel:  Nov  9 19:08:44 
> storage09.beowulf.cluster kernel: Remounting filesystem read-only
> Nov  9 19:08:44 storage09.beowulf.cluster kernel: LDISKFS-fs error 
> (device dm-5): mb_free_blocks: double-free of inode 38887437's block 
> 155560193(bit 10497 in group 4747)
> Nov  9 19:09:13 storage10.beowulf.cluster heartbeat: [21231]: WARN: node 
> storage09: is dead Nov  9 19:09:13 storage10.beowulf.cluster heartbeat: 
> [21231]: info: Link storage09:eth0 dead.
> Nov  9 19:09:13 storage10.beowulf.cluster heartbeat: [21231]: info: Link 
> storage09:eth2 dead. Nov  9 19:09:13 storage10.beowulf.cluster 
> heartbeat: [32414]: info: Resetting node storage09 with [external/ipmi ]
> 
> Do you know how serious are LDISKFS-fs errors? Is that indicates data 
> corruption on the certain block device? Device dm-5 is a DDN LUN.  DDN 
> controller S2A9500 says that everything is Healthy there.
> 
> Cheers
> 
> Wojciech Turek
> 
> 
> Mr Wojciech Turek
> Assistant System Manager
> University of Cambridge
> High Performance Computing service 
> email: wjt27 at cam.ac.uk <mailto:wjt27 at cam.ac.uk>
> tel. +441223763517
> 
> 
> 
> 
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