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Re: [Qemu-devel] 答复: qemu crashed when sta rting vm(kvm) with vnc conne

From: Stefan Hajnoczi
Subject: Re: [Qemu-devel] 答复: qemu crashed when sta rting vm(kvm) with vnc connect
Date: Mon, 8 Apr 2013 12:50:52 +0200
User-agent: Mutt/1.5.21 (2010-09-15)

On Sun, Apr 07, 2013 at 04:58:07AM +0000, Zhanghaoyu (A) wrote:
> >> I start a kvm VM with vnc(using the zrle protocol) connect, sometimes qemu 
> >> program crashed during starting period, received signal SIGABRT.
> >> Trying about 20 times, this crash may be reproduced.
> >> I guess the cause memory corruption or double free.
> >
> > Which version of QEMU are you running?
> > 
> > Please try qemu.git/master.
> > 
> > Stefan
> I used the QEMU download from qemu.git (http://git.qemu.org/git/qemu.git).

Great, thanks!  Can you please post a backtrace?

The easiest way is:

  $ ulimit -c unlimited
  $ qemu-system-x86_64 -enable-kvm -m 1024 ...
  $ gdb -c qemu-system-x86_64.core
  (gdb) bt

Depending on how your system is configured the core file might have a
different filename but there should be a file name *core* the current
working directory after the crash.

The backtrace will make it possible to find out where the crash


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