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Re: [Xen-devel] dom0 kernel - irq nobody cared ... the continuing saga ..

>>> On 09.02.15 at 16:18, <david.vrabel@xxxxxxxxxx> wrote:
> On 09/02/15 15:03, Sander Eikelenboom wrote:
>> Hi Jan / David / Konrad,
>> I was just testing a 3.19 kernel on my intel machine and again
>> ran into the sporadically appearing "irq nobody cared" on the dom0 kernel.
>> This occurs now for quite some kernel versions (running xen-unstable now,
>> but it also appeared in the past with builds that are now xen-4.5).
> I wouldn't suspect anything Xen related here.  IRQ #18 is a shared
> line-level interrupt so other driver/device that was/is sharing than
> line is misbehaving.
> I'd recommend seeing if your BIOS has a option to put the disk
> controllers into AHCI mode which would allow them to use MSIs (I think).

But iirc previous instances weren't always pointing at a disk
controller, and hence dealing with that as a special case won't
make the underlying problem go away.

Sander, this looking different from previous reports of yours -
is this different (or differently configured) hardware now? In
which case knowing what other devices sit on that same IRQ
would (again) be necessary, including which of them you pass to


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