XFS crashes on VMs

[Eric Sandeen]

That's not a crash. That is xfs detecting on disk corruption which likely happened at some time prior. You should unmount and run xfs_repair, possibly with –n first if you would like to do a dry run to see what it might do.  If you get fresh corruption after a full repair, then that becomes more interesting. It's possible that you have a problem with the underlying block layer or it's possible that it is an xfs bug -  but I think this is not something that we have seen before.

Eric 

> On May 27, 2015, at 6:06 PM, Shrinand Javadekar <shrinand at maginatics.com> wrote:
> 
> Hi,
> 
> I am running Openstack Swift in a VM with XFS as the underlying
> filesystem. This is generating a metadata heavy workload on XFS.
> Essentially, it is creating a new directory and a new file (256KB) in
> that directory. This file has extended attributes of size 243 bytes.
> 
> I am seeing the following two crashes of the machine:
> 
> http://pastie.org/pastes/10210974/text?key=xdmfvaocvawnyfmkb06zg
> 
> AND
> 
> http://pastie.org/pastes/10210975/text?key=rkiljsdaucrk7frprzgqq
> 
> I have only seen these when running in a VM. We have run several tests
> on physical server but have never seen these problems.
> 
> Are there any known issues with XFS running on VMs?
> 
> Thanks in advance.
> -Shri
> 
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