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Re: [Qemu-devel] [Snapshot Bug?]Qcow2 meta data corruption
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From: |
Kevin Wolf |
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Subject: |
Re: [Qemu-devel] [Snapshot Bug?]Qcow2 meta data corruption |
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Date: |
Tue, 7 Apr 2015 11:33:12 +0200 |
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User-agent: |
Mutt/1.5.21 (2010-09-15) |
Am 03.04.2015 um 12:04 hat leijian geschrieben:
> Hi all,
>
> There was a problem about qcow2 image file happened in my serval vms and I
> could not figure it out,
> so have to ask for some help.
> [...]
> I think the problem is relate to the snapshot create, delete. But I cant
> reproduce it .
> Can Anyone give a hint about how this happen?
How did you create/delete your snapshots?
More specifically, did you take care to never access your image from
more than one process (except if both are read-only)? It happens
occasionally that people use 'qemu-img snapshot' while the VM is
running. This is wrong and can corrupt the image.
Kevin