Kernel crashes with trace ending in XFS code on RHEL6 variant kernel

[Jan Kokoska <jan@xxxxxxx>]

Hi,

I'm running OpenVZ (OS container) kernel variant of RHEL6 kernel on

several amd64 machines by different manufacturers (HP and Supermicro)

and different RAID cards (HP and Areca).

I've started seeing kernel crashes in October, as per the netconsole

logs attached, on two of the machines (one HP, one Supermicro). The

traces look quite similar, the machine in question cannot write

anything to its own filesystem when this happens so the logs are made

over the network. The XFS filesystem is not root (that's ext4), but

one for data (OS containers), on both machines. When I run xfs_check

and xfs_repair on the filesystem after the kernel crash & reboot, no

issue is ever found.

This may very well have nothing to do with XFS kernel code you wrote

and maintain, but in that case, could you, from looking at the traces,

tell me whether it maybe looks like something issue related to

vm/paging just ending up in XFS related code path?

I'm happy to test any suggestions/fixes for this if it is XFS related.

Thank you,

--Â

Jan Kokoska
Glow Internet s.r.o.

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