Re: [Xen-users] xen dom0 server freezes every one or two hours

[Stephan Seitz <s.seitz@xxxxxxxxxxxx>]

I had similar problems on one machine which has been solved by adding
pci=routeirq to the kernel parameters at boot time.

I somewhat sure that your problem is caused by other issues, but ...
maybe it helps ;)

Regards,

Stephan




Sebastian Reitenbach schrieb:
> Hi,
> Igor Chubin <igor@xxxxxxx> wrote: 
>>> same problem here and it can be reproduced. I use Gentoo 2007.0 with Xen 
>>> 3.1.2 and kernel 2.6.22 (xen-sources) in 64bit mode.
>>> The Server is a Dual Opteron 275 running in PV mode.
>>> The Dom0 freezes every time if you generate system high-load, for 
> example 
>>> starting a boinc-client or doing big filesystem transfers.
>>> -> Network hangs, SATA Devices time out
>> The problem I have mentioned earlier 
>> as far as I remember is on a Gentoo system too.
>> But there are no problems with the disk. 
>> Only network.
> 
> I think this is the problem here too. Over Christmas I downloaded the 
> opensuse KOTD, hoping that it maybe fixes the problem. the dom0 was 
> disconnected from network, and I had two domU's running, and I copied a 650 
> MB file between these two via scp, for thousand times.
> 
> Two days ago, I connected the dom0 to the network again, and started using 
> the domU's as file/print/... servers again.
> It took about an hour, and the server was frozen again, without any notice 
> in /var/log/messages.
> 
> I created a bugreport, maybe you can add your observations there too.
> 
> http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1131
> 
>> May be if they try to generate big load on the system,
>> disk drives will hang too. 
>>
>>> Normally the system freezes every 2 hours.
>> At that case much more seldom.
>> Guys have said me that it hangs every several days
>> (but if it wants to it can hang several times a day).
>>
>>> I tried to play with the Xen version compatibility in the kernel, but 
> that 
>>> doesn't make a difference.
>>>
>>> Due to the HDD timeout I can't find anything in the logs...
>>>
>> Just a guess:
>>
>> it may not be related to Xen baloon driver?
>>
>> Do you use dom0_mem as a parameter for the hypervisor?
> I use dom0_mem, yes, but with and without this parameter, in both cases the 
> dom0 froze.
> 
> kind regards
> Sebastian
> 
> 
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Stephan Seitz
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