qemu-devel
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Qemu-devel] Re: [PATCH] qcow2 corruption: Fix alloc_cluster_link_l2


From: Anthony Liguori
Subject: [Qemu-devel] Re: [PATCH] qcow2 corruption: Fix alloc_cluster_link_l2
Date: Fri, 17 Apr 2009 15:44:41 -0500
User-agent: Thunderbird 2.0.0.21 (X11/20090320)

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 <address@hidden>

Applied to stable and trunk.  Thanks!

--
Regards,

Anthony Liguori





reply via email to

[Prev in Thread] Current Thread [Next in Thread]