On Tue, Apr 18, 2017 at 05:53:56PM +0200, Peter Zijlstra wrote: > On Tue, Apr 18, 2017 at 02:10:07PM +0000, Lofstedt, Marta wrote: > > Sorry Peter, I still see regression on the Core2 machine, with your patch. > > > > Blergh, ok. I'll see if I can dig out an actual Core2 machine somewhere. > I should have enough parts about. Argh! My Core2 seems to work as expected _without_ this patch (time is continuous at the stable->unstable switch), but is broken (time jumps backwards by almost .2s) with this patch -- because by the time ACPI Processor marks TSC as busted, we haven't ran the clocksource watchdog yet. Just for my sanity, could you confirm "tsc=unstable" (which requires the patch) actually works for you? I'll go prod at things now that I have an actual Core2 running; although sadly I don't see an obvious problem without this patch. _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
