[Bug 219399] System panics after several hours of 14-threads-compilation orgies using poudriere on AMD Ryzen...

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=219399

--- Comment #88 from Nils Beyer <nbe at renzel.net> ---
(In reply to Don Lewis from comment #87)

thanks for the modified version; I've tried it. It loads the CPU more, yes, but
there's still at least one core (sometimes two or more) idling around. I don't
get any segmentation faults within an acceptable time frame (<5 minutes).

Please try the version that I've attached

    https://bugs.freebsd.org/bugzilla/attachment.cgi?id=184539

I know you've said that you've already tried it - but perhaps there's something
different on my system compiler. Here it segfaults after a maximum of one
minute.

I believe that the key to these segmentation faults are inner-thread core
switches that are prevented by pinning these threads to specific cores. How far
any instruction cache is involved with that, I don't know...

TIA

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