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Re: [Qemu-devel] qcow2 corruption observed, fixed by reverting old chang
From: |
Jamie Lokier |
Subject: |
Re: [Qemu-devel] qcow2 corruption observed, fixed by reverting old change |
Date: |
Wed, 11 Feb 2009 11:27:20 +0000 |
User-agent: |
Mutt/1.5.13 (2006-08-11) |
Kevin Wolf wrote:
> Jamie Lokier schrieb:
> > Although there are many ways to make Windows blue screen in KVM, in
> > this case I've narrowed it down to the difference in
> > qemu/block-qcow2.c between kvm-72 and kvm-73 (not -83).
>
> This must be one of SVN revisions 5003 to 5008 in upstream qemu. Can you
> narrow it down to one of these? I certainly don't feel like reviewing
> all of them once again.
That's helpful, thanks. It's a production mail server which was
affected, and it's being used at the moment. Not sure if I can narrow
it down that easily :-)
> Do I understand correctly that your image fails with the kvm-73 version
> of block-qcow2.c and afterwards boots with kvm-72? So the image is not
> really corrupted but it's more likely an IO error which brings the OS down?
That's correct, it's always booted when trying again with kvm-72, or a
later kvm with block-qcow2.c reverted.
It might be an I/O error rather than corruption. Up to kvm-76, I/O
errors aren't reported over the IDE driver.
-- Jamie
- [Qemu-devel] qcow2 corruption observed, fixed by reverting old change, Jamie Lokier, 2009/02/11
- Re: [Qemu-devel] qcow2 corruption observed, fixed by reverting old change, Kevin Wolf, 2009/02/11
- Re: [Qemu-devel] qcow2 corruption observed, fixed by reverting old change,
Jamie Lokier <=
- Re: [Qemu-devel] qcow2 corruption observed, fixed by reverting old change, Jamie Lokier, 2009/02/11
- Re: [Qemu-devel] qcow2 corruption observed, fixed by reverting old change, Kevin Wolf, 2009/02/11
- Re: [Qemu-devel] qcow2 corruption observed, fixed by reverting old change, Jamie Lokier, 2009/02/11
- Re: [Qemu-devel] qcow2 corruption observed, fixed by reverting old change, Consul, 2009/02/12
- [Qemu-devel] Re: qcow2 corruption observed, fixed by reverting old change, Consul, 2009/02/12
- Re: [Qemu-devel] Re: qcow2 corruption observed, fixed by reverting old change, Marc Bevand, 2009/02/13
- Re: [Qemu-devel] qcow2 corruption observed, fixed by reverting old change, Kevin Wolf, 2009/02/16
- Re: [Qemu-devel] qcow2 corruption observed, fixed by reverting old change, Jamie Lokier, 2009/02/16
- Re: [Qemu-devel] qcow2 corruption observed, fixed by reverting old change, Chris Wright, 2009/02/12
- Re: [Qemu-devel] qcow2 corruption observed, fixed by reverting old change, Johannes Schindelin, 2009/02/12