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Re: [Qemu-discuss] need your help for some crash trouble of qemu-system-
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From: |
Fam Zheng |
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Subject: |
Re: [Qemu-discuss] need your help for some crash trouble of qemu-system-x86_64 |
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Date: |
Thu, 22 Dec 2016 14:05:16 +0800 |
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User-agent: |
Mutt/1.7.1 (2016-10-04) |
On Thu, 12/22 10:20, Zhenhao Zhang wrote:
> > > > *** Error in `/usr/bin/qemu-system-x86_64': double free or
> > > > corruption (out):
> > > > 0x00007f83bc0cc1d0 ***
> > > > 2016-06-28 22:36:16.361+0000: shutting down
> > > >
> > > > not all vms have crashed and the creashed vms images incloud
> > > > : centos6.5
> > > > ubuntu14.04 and ubuntu16.04. Maybe it not caused by the guest images,I
> > > > think.
> > > Yes, a double free or corruption is very likely a bug of QEMU, not
> > > the guest.
> > >
> > > Can you post a backtrace of the crash?
> >
> > Zhenhao, its better to post backtrace after installing debug symbols
> > for package qemu.
> >
> I am so sorry to said that, I have not installed this for qemu . So,all the
> things I can get is here. I will install it and Thanks again for your
> reminder. Could you give me more suggestions to help get its root cause
> ,when it is happend again.
OK, please try to install debug info packages and enable crash dump on your host
(by configuring 'ulimit -c' of the QEMU process, sysctl core_pattern, etc), then
wait for the next crash. It is really hard to guess the cause without looking at
the backtrace.
Fam