On 7/14/20 11:11 AM, Alexander Motin wrote: > Author: mav > Date: Tue Jul 14 18:11:05 2020 > New Revision: 363188 > URL: https://svnweb.freebsd.org/changeset/base/363188 > > Log: > Add stepping to the kern.hwpmc.cpuid string on x86. > > It follows the equivalent Linux change to be able to differentiate > skylakex and cascadelakex, sharing the same model but not stepping. > > This fixes skylakex handling broken by r363144.
Unfortunately this breaks compatibility meaning you can't use an older libpmc with a newer kernel module after this change. Perhaps we don't consider libpmc stable, but this was really annoying as I booted a test kernel today on an older Haswell box whose world is from before this change and pmc doesn't work at all. (pmccontrol -L doesn't list any valid counters as the older libpmc presumably chokes on the additional suffix and doesn't match anything) -- John Baldwin _______________________________________________ svn-src-head@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
