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Date: Mon, 8 Dec 2008 00:36:59 +0100 From: "R. J. Wysocki" <Rafal.Wysocki@....edu.pl> To: Bartlomiej Zolnierkiewicz <bzolnier@...il.com> Cc: Thomas Gleixner <tglx@...utronix.de>, Sergei Shtylyov <sshtylyov@...mvista.com>, Lars Winterfeld <lars.winterfeld@...ilmenau.de>, linux-kernel@...r.kernel.org Subject: Re: [PATCH] nohz: add missing handling of clocksource watchdog On Monday, 8 of December 2008, Bartlomiej Zolnierkiewicz wrote: > > Fixes "Clocksource tsc unstable (delta = -974982308 ns)" problem. Where can I find the description of the problem? Rafael > [ IDE was unlucky to be initialized at the same time that > clocksource watchdog triggers and was blamed for the issue. ] > > Cc: Sergei Shtylyov <sshtylyov@...mvista.com> > Cc: Lars Winterfeld <lars.winterfeld@...ilmenau.de> > Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@...il.com> > --- > kernel/time/tick-sched.c | 2 ++ > 1 file changed, 2 insertions(+) > > Index: b/kernel/time/tick-sched.c > =================================================================== > --- a/kernel/time/tick-sched.c > +++ b/kernel/time/tick-sched.c > @@ -21,6 +21,7 @@ > #include <linux/sched.h> > #include <linux/tick.h> > #include <linux/module.h> > +#include <linux/clocksource.h> > > #include <asm/irq_regs.h> > > @@ -153,6 +154,7 @@ void tick_nohz_update_jiffies(void) > local_irq_restore(flags); > > touch_softlockup_watchdog(); > + clocksource_touch_watchdog(); > } > > static void tick_nohz_stop_idle(int cpu) > -- Rafael J. Wysocki, Ph.D. Institute of Theoretical Physics Faculty of Physics of Warsaw University ul. Hoza 69, 00-681 Warsaw [tel: +48 22 55 32 263] [mob: +48 60 50 53 693] ---------------------------- One should not increase, beyond what is necessary, the number of entities required to explain anything. -- William of Ockham -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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