Re: [patch 13/19] GTOD: Mark TSC unusable for highres timers

[Pavel Machek <pavel@ucw.cz>]

Hi!

> > If so, could that function use the PIT/pmtimer/etc for working out if 
> > the TSC is bust, rather than directly using jiffies?
> 
> there's no realiable way to figure out the TSC is bust: some CPUs have a 
> slight 'skew' between cores for example. On some systems the TSC might 
> skew between sockets. A CPU might break its TSC only once some 

But we could still do a whitelist?
								Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/