Re: [Xen-devel] [xen-4.1-testing test] 9805: regressions - FAIL

[Keir Fraser <keir@xxxxxxx>]

On 17/11/2011 10:28, "Stefan Bader" <stefan.bader@xxxxxxxxxxxxx> wrote:

>>> Hm, yes we should. I am pretty sure I hit that code path often enough,
>>> Wonder
>>> why I never saw any dead lock there...
>> 
>> Perhaps your dom0 kernel doesn't register a pirq_eoi_map.
>> 
> Would be the only explanation. And quite possible. Heck, I would need to know
> what that is used for anyway. :/ The kernel is 3.0 based the interrupt I was
> looking at just was a normal apic emulated through events one...

Our automated tests still use 2.6.32. It wouldn't surprise me if upstream
Linux 3 doesn't have the pirq_eoi_map stuff; it's an optimisation rather
than core absolutely-required functionality.

It's the dom0 PV kernel that matters in this case by the way, not the kernel
that you are running in HVM mode as a domU.

 -- Keir



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