Re: [patch 1/4] Ignore stolen time in the softlockup watchdog

From: Andrew Morton
Date: Tue Apr 24 2007 - 13:59:28 EST

On Tue, 24 Apr 2007 10:51:35 -0700 Jeremy Fitzhardinge <jeremy@xxxxxxxx> wrote:

> Andrew Morton wrote:
> > It seems fairly sensitive to .config settings. See
> >
> >
> I haven't tried your config yet, but I haven't managed to reproduce it
> by playing with the usual suspects in my config (SMP, PREEMPT). Any
> idea about which config changes make the difference?

I said that because the damn thing went away when I was hunting it down
because I lost the config and was unable to remember the right combination
of debug settings. Fortunately it later came back so I took care to
preserve the config.

> Hm, is it caused by using sched_clock() to generate the printk
> timestamps while generating the lock test output?

Conceivably. What does that locking API test do?

I was using printk timestamps and netconsole at the time.
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