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Re: [Xen-users] domU file system corruption

To: Thomas Knauth <thomas.knauth@xxxxxxxxxxxxxx>
Subject: Re: [Xen-users] domU file system corruption
From: Florian Heigl <florian.heigl@xxxxxxxxx>
Date: Tue, 8 Feb 2011 15:50:33 +0100
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Hi Thomas,

2011/1/31 Thomas Knauth <thomas.knauth@xxxxxxxxxxxxxx>:
> I have a simple setup where VMs are created using the following command line
> file:/home/thomas/euca-debian-5.0-x86_64/vm1.img is an NFS mount
> For some reason, the virtual disk seems to get corrupted very
> frequently. Running e2fsck on the disk file (after powering down the

Can you try to "drop caches" via /proc after the vm shutdown? Then try
hard and see if you can reproduce the issue.
I think I remember loop devices are being buffered by the kernel, it
will not care that they reside on a "sync" filesystem like nfs.

Good luck,

the purpose of libvirt is to provide an abstraction layer hiding all
xen features added since 2006 until they were finally understood and
copied by the kvm devs.

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