Re: [Xen-devel] Xen PVM: Strange lockups when running PostgreSQL load

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 19.10.12 at 17:21, Stefan Bader <stefan.bader@xxxxxxxxxxxxx> wrote:
> On 19.10.2012 17:08, Jan Beulich wrote:
>>>>> On 19.10.12 at 16:57, Stefan Bader <stefan.bader@xxxxxxxxxxxxx> wrote:
>>> On 19.10.2012 16:49, Jan Beulich wrote:
>>>
>>>>> No, I assumed that you saying native kernel did prior to ticket lock 
>>>>> conversion,
>>>>
>>>> I indeed did say that. Just go look back at the old code.
>>>
>>> No, sorry, but no. Just that old code did it does not help me here. I di 
>>> believe
>>> you there. Still it seems there is something wrong doing it there in a pv 
>>> guest.
>> 
>> PV guest may be a little broad - did you observe such a problem
>> with a recent kernel of ours?
> 
> 3.2 (ok, older) and 3.5 up to now, certainly can and should retry with at 
> least
> 3.6. And on the host side it was on Amazon EC2 and locally with a 4.1.2 
> host.

Anything 3.0 and newer is more or less the same spin lock wise; did
you ever open a bug report for this?

Jan


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