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

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> 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?

> Though I cannot give a satisfying explanation, yet.

But that's going to be necessary in order to judge whether the
brute force approach you take is really the only alternative (and
whether it's fixing the problem rather than just making it less
likely).

Jan


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