Re: [Xen-devel] pvops domu soft lockup under load (more logs)

[Jeremy Fitzhardinge <jeremy@xxxxxxxx>]

On 04/12/2010 02:44 AM, Pim van Riezen wrote:
> On Apr 10, 2010, at 9:12 , Pim van Riezen wrote:
>
>   
>>> When you're getting lockups, could you capture the output of sysrq-t (xm
>>> sysrq <domain> t, or "Ctrl-O t" on the domain's console)?
>>>       
>> This one is going to be a bit tough. I only get the error after the fact. 
>> The domain has multiple vcpu's, so it's usually not apparent that it's 
>> hanging, all depending on which process gets stuck. I'll keep poking at it 
>> and if I manage to catch it in the act I'll follow up with a sysrq-t.
>>     
> xm sysrq $vps t doesn't seem to add anything to the console. Am I doing it 
> wrong?
>   

Does it appear on the Xen console (visible with "xm dmesg")?  You may
need to do a sysrq '9' first to get it to output all messages.

    J

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