From: Anthony Liguori <aliguori@us.ibm.com>
To: Kevin Wolf <kwolf@redhat.com>
Cc: dlaor@redhat.com, qemu-devel@nongnu.org, gleb@redhat.com
Subject: [Qemu-devel] Re: [PATCH] qcow2 corruption: Fix alloc_cluster_link_l2
Date: Fri, 17 Apr 2009 15:44:41 -0500 [thread overview]
Message-ID: <49E8EA39.5010801@us.ibm.com> (raw)
In-Reply-To: <1239789151-23552-1-git-send-email-kwolf@redhat.com>
Kevin Wolf wrote:
> This patch fixes a qcow2 corruption bug introduced in SVN Rev 5861. L2 tables
> are big endian, so entries must be converted before being passed to functions.
>
> This bug is easy to trigger. The following script will create and destroy a
> qcow2 image (the header is gone after three loop iterations):
>
> #!/bin/bash
> qemu-img create -f qcow2 test.qcow 1M
> for i in $(seq 1 10); do
> qemu-system-x86_64 -hda test.qcow -monitor stdio > /dev/null 2>&1 <<EOF
> savevm test-$i
> quit
> EOF
> done
>
> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Applied to stable and trunk. Thanks!
--
Regards,
Anthony Liguori
next prev parent reply other threads:[~2009-04-17 20:44 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-15 9:52 [Qemu-devel] [PATCH] qcow2 corruption: Fix alloc_cluster_link_l2 Kevin Wolf
2009-04-15 10:05 ` [Qemu-devel] " Gleb Natapov
2009-04-15 15:28 ` Consul
2009-04-16 6:30 ` Marc Bevand
2009-04-17 20:44 ` Anthony Liguori [this message]
2009-04-26 13:24 ` [Qemu-devel] " Christoph Hellwig
2009-04-26 14:14 ` Avi Kivity
2009-04-26 14:41 ` Christoph Hellwig
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