Messages in this thread | | | Date | Fri, 5 Jul 2013 16:23:33 +0200 | Subject | Re: [URGENT rfc patch 0/3] tsc clocksource bug fix | From | Frederic Weisbecker <> |
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2013/7/4 Peter Zijlstra <peterz@infradead.org>: > On Thu, Jul 04, 2013 at 01:34:13PM +0800, Alex Shi wrote: > >> If the tsc is marked as constant and nonstop, could we set it as system >> clocksource when do tsc register? w/o checking it on clocksource_watchdog? > > I'd not do that; the BIOS can still screw you over, we need some validation. > > That said; we do need means to disable the clocksource watchdog -- although I > suppose Frederic might already have provided this for this NOHZ efforts when I > wasn't looking.
Nope, I haven't touched that. I prefer not to fiddle with unstable clocksource for now :)
As for unstable TSCs, if sched_clock_tick() needs to be fed, we simply don't stop the tick.
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