On 03/06/2018 18:49, Mike Tancsa wrote:
I have c-states disabled on the ryzen both for FreeBSD and Linux. To disable SMP on the Epyc doesnt seem to be possible. But then again kill off 31 cores is a heavy cost to pay for stability :( When I am back at the office, I will see if a recent checkout of HEAD still freezes the Epyc.
Agreed about the performance hit turning off SMP! Am hoping its a temporary thing, and if we can show it *is* SMP then maybe that will hepl with a fix, as there cant be that many places where SMP is handled differently to real cores I would think. If you could test then that would be great!
cheers, -pete. _______________________________________________ freebsd-stable@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
