Re: [PATCH] perf/x86/amd: Do not WARN on every IRQ

[Peter Zijlstra]

On Thu, Sep 14, 2023 at 02:25:40PM +0530, Sandipan Das wrote:
> Hi Breno, Jirka,
> 
> On 9/14/2023 2:15 PM, Jirka Hladky wrote:
> > Hi Breno,
> > 
> > I'm definitively voting for using WARN_ON_ONCE - in the current
> > implementation, we are getting thousands of the same warnings and Call
> > Traces, causing the system to become unusable.
> > 
> >> Anyway, please let me know whatever is your preferred way and I will submit a v2.
> > @Peter Zijlstra and @Sandipan - could you please comment on the
> > preferred implementation of the patch?
> > 
> 
> I agree with using WARN_ON_ONCE() to make this less intrusive.

Could you send a patch that AMD is happy with? I think you wrote this
was a firmware bug and is sorted with a new firmware, so perhaps make it
WARN_ONCE() and tell the users to upgrade their firmware to $ver ?