Re: [Qemu-devel] qemu-kvm-1.0 crashes with threaded vnc server?

[Peter Lieven]

On 11.02.2012 09:55, Corentin Chary wrote:
> On Thu, Feb 9, 2012 at 7:08 PM, Peter Lieven<address@hidden>  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