On Sun, 27 Jan 2008 13:42:44 +0100
Ingo Molnar <[EMAIL PROTECTED]> wrote:
>
> * Ingo Molnar <[EMAIL PROTECTED]> wrote:
>
> > hm, perhaps it's due to the xtime lock dependency:
> >
> > do {
> > seq = read_seqbegin(&xtime_lock);
> > getnstimeofday(ts);
> > tomono = wall_to_monotonic;
> >
> > } while (read_seqretry(&xtime_lock, seq));
> >
> > perhaps your system somehow generates a printk from within an
> > xtime_lock locked section?
>
> i _bet_ it's these printks that cause your lockup:
>
> [ 10.313437] Marking TSC unstable due to: cpufreq changes.
> [ 10.313437] Time: hpet clocksource has been installed.
> [ 10.424431] Clocksource tsc unstable (delta = -121609771 ns)
>
> as these are done with the xtime lock held.
>
Yes, disabling cpufreq (in my .config since, sadly, there is no command
line option to disable it) fixes the problem.
--
Kevin Winchester <[EMAIL PROTECTED]>
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