On Monday, April 06, 2015 12:49:39 PM Alexey Dokuchaev wrote: > On Thu, Apr 02, 2015 at 01:02:47AM +0000, John Baldwin wrote: > > New Revision: 280973 > > URL: https://svnweb.freebsd.org/changeset/base/280973 > > > > Log: > > MFC 276724: > > On some Intel CPUs with a P-state but not C-state invariant TSC the TSC > > may also halt in C2 and not just C3 (it seems that in some cases the BIOS > > advertises its C3 state as a C2 state in _CST). Just play it safe and > > disable both C2 and C3 states if a user forces the use of the TSC as the > > timecounter on such CPUs. > > Does it apply to stable/8 as well? Any preliminary testing I might have to > conduct first?
It needs some manual patching to apply to 8 (8 doesn't have the merged tsc.c in sys/x86/x86 for example). At this point in 8's life cycle I'm not inclined to merge non-trivial changes that need manual fixups, etc. -- John Baldwin _______________________________________________ svn-src-stable-9@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-stable-9 To unsubscribe, send any mail to "svn-src-stable-9-unsubscr...@freebsd.org"
