On Sat, 2007-04-07 at 10:43 -0700, Daniel Walker wrote:
> Looks like this path ,
> 
> arch/i386/kernel/tsc.c: time_cpufreq_notifier(); <-- takes xtime_lock
>                        mark_tsc_unstable();
>                         clocksource_change_rating(&clocksource_tsc, 0);
>                          timekeeping_change_clocksource(); <-- takes 
> xtime_lock
> 
> 
> I'm not sure why the time_cpufreq_notifier is taking the xtime_lock tho .

Simply because it fiddles with variables which are relevant for
timekeeping.

        tglx


        

        

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