Re: perf: perf_fuzzer quickly locks up on 4.15-rc7

[Ingo Molnar]

* Vince Weaver <vincent.weaver@xxxxxxxxx> wrote:

> Hello
> 
> Was trying out current git (4.15-rc7) and the perf_fuzzer very quickly 
> will lock up my Haswell test machine so solidly that I don't get any debug 
> info, even with a serial console.

That's pretty concerning ...

> I'll try enabling various debug options to see if I can get a more useful 
> bug report.

Note that the page table isolation (PTI) feature has a number of effects on perf 
and on NMI handlers, so one of the things to try would be to disable PTI.

Thanks,

	Ingo