From mboxrd@z Thu Jan  1 00:00:00 1970
From: Peter Lieven <pl@dlh.net>
Subject: Re: qemu-kvm-1.0 crashes with threaded vnc server?
Date: Tue, 13 Mar 2012 12:29:06 +0100
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	anthony@codemonkey.ws
To: Corentin Chary <corentin.chary@gmail.com>
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On 11.02.2012 09:55, Corentin Chary wrote:
> On Thu, Feb 9, 2012 at 7:08 PM, Peter Lieven<pl@dlh.net>  wrote:
>> Hi,
>>
>> is anyone aware if there are still problems when enabling the threaded vnc
>> server?
>> I saw some VMs crashing when using a qemu-kvm build with
>> --enable-vnc-thread.
>>
>> qemu-kvm-1.0[22646]: segfault at 0 ip 00007fec1ca7ea0b sp 00007fec19d056d0
>> error 6 in libz.so.1.2.3.3[7fec1ca75000+16000]
>> qemu-kvm-1.0[26056]: segfault at 7f06d8d6e010 ip 00007f06e0a30d71 sp
>> 00007f06df035748 error 6 in libc-2.11.1.so[7f06e09aa000+17a000]
>>
>> I had no time to debug further. It seems to happen shortly after migrating,
>> but thats uncertain. At least the segfault in libz seems to
>> give a hint to VNC since I cannot image of any other part of qemu-kvm using
>> libz except for VNC server.
>>
>> Thanks,
>> Peter
>>
>>
> Hi Peter,
> I found two patches on my git tree that I sent long ago but somehow
> get lost on the mailing list. I rebased the tree but did not have the
> time (yet) to test them.
> http://git.iksaif.net/?p=qemu.git;a=shortlog;h=refs/heads/wip
> Feel free to try them. If QEMU segfault again, please send a full gdb
> backtrace / valgrind trace / way to reproduce :).
> Thanks,
>
I have seen no more crashes with these to patches applied. I would suggest
it would be good to push them to the master repository.

Thank you,
Peter