Messages in this thread | | | Date | Mon, 26 Feb 2018 12:39:37 -0800 | From | Andi Kleen <> | Subject | Re: Long standing kernel warning: perfevents: irq loop stuck! |
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> Given the HSD143 errata and its possible relevance, have you tried > changing the magic number to 32, does it then still fix things? > > No real objection to the patch as such, it just needs a coherent comment > and a tested-by tag I think.
128 min period will affect a lot of valid use cases with slower ticking events. I often use smaller periods there.
It would be better to debug this properly.
Or at a minimum only do the limitation for the events that tick really fast (like cycles, uops retired etc.)
-Andi
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