Re: [PATCH] clockevents: Prevent timer interrupt starvation

Thomas Gleixner
2026-04-03T19:00:59Z

On Fri, Apr 03 2026 at 08:58, Calvin Owens wrote:
> On Friday 04/03 at 16:41 +0200, Thomas Gleixner wrote:
>> I'm an idiot. When I polished the patch up, I dropped the hunks which
>> clear the flag in the interrupt handler and tired brain did not notice
>> despite checking five times in a row. Updated version below.
>
> That did it, both AMD machines survive the reproducer and are well
> behaved afterwards.

Thank you and sorry for the nuisance.

> If you like:
>
> Tested-By: Calvin Owens <calvin@wbinvd.org>

I will probably post a slightly different version similar to the one I
sent in the reply to Peter and if you have time then I would appreciate
a tested-by on that final to be polished version.

Btw, I'm really curious how you deduced the reproducer from systemd
code. I assume you figured somehow out which program triggered the
behaviour and then inspected the source to find something fishy. Can you
provide a pointer to the code in question? If they really do what your
reproducer does, then this code needs to be fixed too :)

Thanks,

tglx