Re: Long standing kernel warning: perfevents: irq loop stuck!

[Josh Hunt]

On Mon, Aug 12, 2019 at 10:55 AM Thomas Gleixner <tglx@xxxxxxxxxxxxx> wrote:
>
> On Mon, 12 Aug 2019, Josh Hunt wrote:
> > Was there any progress made on debugging this issue? We are still
> > seeing it on 4.19.44:
>
> I haven't seen anyone looking at this.
>
> Can you please try the patch Ingo posted:
>
>   https://lore.kernel.org/lkml/20150501070226.GB18957@xxxxxxxxx/
>
> and if it fixes the issue decrease the value from 128 to the point where it
> comes back, i.e. 128 -> 64 -> 32 ...
>
> Thanks,
>
>         tglx

I just checked the machines where this problem occurs and they're both
Nehalem boxes. I think Ingo's patch would only help Haswell machines.
Please let me know if I misread the patch or if what I'm seeing is a
different issue than the one Cong originally reported.

Thanks
-- 
Josh