Re: [Xen-devel] Using debug-key 'o: Dump IOMMU p2m table, locks up machine

[Keir Fraser <keir.xen@xxxxxxxxx>]

On 04/09/2012 07:52, "Sander Eikelenboom" <linux@xxxxxxxxxxxxxx> wrote:

>> Isn't that because tasklets (i.e. idle vCPU-s with tasklets active)
>> get preferred in the schedulers? Some compensation might be
>> needed for the penalized vCPU, at least if that one is pinned
>> (not sure whether load balancing would be able to steal the
>> head of the run queue from a remote CPU). Sander - are you
>> by chance pinning Dom0 vCPU-s? And how many of them does
>> your Dom0 have?
>
> Yes i do, could perhaps be the pinning of CPU0 ?

Yeah. :) Case closed?



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