[CentOS-virt] Machine freeze

Tim Verhoeven tim.verhoeven.be at gmail.com
Fri Apr 3 15:26:54 UTC 2009

On Fri, Apr 3, 2009 at 4:18 PM, Maros TIMKO <timko at pobox.sk> wrote:
> 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?

The complete freezing of a machine like that sounds like a hardware
issue to me, most likely the memory. Does the machine unfreeze after a
while or do you have to power cycle the server when it happens ? I
would suggest running a memtest.


Tim Verhoeven - tim.verhoeven.be at gmail.com - 0479 / 88 11 83

Hoping the problem  magically goes away  by ignoring it is the
"microsoft approach to programming" and should never be allowed.
(Linus Torvalds)

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