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Re: [Xen-users] DomU crashing in CPU hotplug after migration

To: Tim Evers <it@xxxxxxxxxx>
Subject: Re: [Xen-users] DomU crashing in CPU hotplug after migration
From: Adi Kriegisch <adi@xxxxxxxxxxxxxxx>
Date: Mon, 14 Nov 2011 11:24:26 +0100
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Dear Tim, 

> thanks for your hint. I've noticed that too but it seems I have no
> options regarding clocksource:
> 
> tsc gives me the infamous "clock went backwards"-error with lockup
> jiffies simply runs at about twice the speed it should
> xen gives a stable time
I see; do your Dom0's have a synchronized clock?
 
> I've tried:
> 
> Stock Debian 6 kernel 2.6.32
I cannot say anything about the other kernels, but there is a related bug
in the recent version of the Debian Squeeze kernel package version
2.6.32-38: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=644604

This is fixed in 2.6.32-39 which is pending in stable-proposed-updates. So
if you're running any kernel from 2.6.32-38 in your DomU, you should
consider upgrading to the kernel in s-p-o and try again.

-- Adi

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