[CentOS-virt] Machine freeze

[Maros Timko]

Hi all,

thanks to all for valuable replies.
It seems like we identified the issue. We assured that it is not HW related
as it was already reproduced on different machines and platforms, with
different BIOS versions.
We are running a system performance/statistics collector that executes
"xentop" command on Dom0 regularly. This is causing issues. If we execute:
xentop -b -d 0.1 > /dev/null
in multiple instances, it will freeze the system.
It was reproduced on CentOS 5.3 (kernel-xen-2.6.18-128.1.6.el5) system.
There is created a bug for this issue:
http://bugs.centos.org/view.php?id=3454

With regards,

Tino


2009/4/3 Maros TIMKO <timko at pobox.sk>

> Hi all,
>
> we are running CentOS 5.2 Xen virtualization system with the latest CentOS
> packages with couple of VMs on DELL PowerEdge. "Sometimes" the whole machine
> freezes without anything in log files, anything on the console. "Sometimes"
> really means we cannot define why or when. Sometimes the machine was idle
> with just one VM, sometimes quite busy with couple of VMs.
>
>  Has anybody had the same experience? If yes, any hints on how to resolve
> it or how to trace the cause?
>
>
>
> Thanks.
>
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> CentOS-virt at centos.org
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>
>
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