[Qemu-devel] Qemu-Libgfapi: periodical shutdown of virtual machines.

[Qemu-devel] Qemu-Libgfapi: periodical shutdown of virtual machines.

[Igor Yakovlev]

Hello,

Would you so kind to help me with my problem concerning libgfapi.

My host operating system is Ubuntu 14.04 LTS, version of glusterfs is 
3.6.2, and version of qemu is 2.0.0. We use libfgapi library to connect to glusterfs.

In our environment virtual machines sometimes go to power-off 
state 'Powered Off'(Shutdown) with ERROR in /var/log/syslog like:

kernel: [5346607.988173] qemu-system-x86[29564]: segfault at 128 ip
00007f930a90b48c sp 00007f931296fd70 error 4 in
qemu-system-x86_64[7f930a57f000+4b1000]

Please help me to understand possible reasons of the qemu-system segfault.
Maybe glusterfs tuning is required or tuning of libvirt.

Do you have any ideas?...

Best regards,
Igor.

Re: [Qemu-devel] Qemu-Libgfapi: periodical shutdown of virtual machines.

[Stefan Hajnoczi]

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On Tue, Jun 09, 2015 at 02:07:47PM +0300, Igor Yakovlev wrote:
> Would you so kind to help me with my problem concerning libgfapi.
> 
> My host operating system is Ubuntu 14.04 LTS, version of glusterfs is 
> 3.6.2, and version of qemu is 2.0.0. We use libfgapi library to connect to glusterfs.
> 
> In our environment virtual machines sometimes go to power-off 
> state 'Powered Off'(Shutdown) with ERROR in /var/log/syslog like:
> 
> kernel: [5346607.988173] qemu-system-x86[29564]: segfault at 128 ip
> 00007f930a90b48c sp 00007f931296fd70 error 4 in
> qemu-system-x86_64[7f930a57f000+4b1000]
> 
> Please help me to understand possible reasons of the qemu-system segfault.
> Maybe glusterfs tuning is required or tuning of libvirt.
> 
> Do you have any ideas?...

Please file an Ubuntu bug if you are using a packaged version of QEMU:
https://launchpad.net/ubuntu/+source/qemu

You may be asked to install debug symbols and post a backtrace the gives
more information on the segfault.

Stefan

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