On 01/25/18 17:13, Konstantin Belousov wrote: > On Thu, Jan 25, 2018 at 04:58:04PM -0500, Ian FREISLICH wrote: >> Hi >> >> I cannot for the life of me recall why I had vm.pmap.pcid_enabled=1 set >> in loader.conf, but I did. Most likely very historical reasons. >> >> r328166 and later reset without dropping into the debugger during boot, >> no panic message. > Yes, this is how it is currently behaves. > PCID can be used to optimize PTI, see https://reviews.freebsd.org/D13985. > It is used for very differrent algorithm when PTI=1, comparing with PTI=0.
Maybe there should be an "interlock" on these knobs, although judging from the number of reports I'm the only that shot my foot. Ian -- Ian Freislich -- _______________________________________________ freebsd-current@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
