Re: [patch] fix the softlockup watchdog to actually work

From: Jeremy Fitzhardinge
Date: Thu Jul 19 2007 - 10:32:27 EST


Ingo Molnar wrote:
> btw., could you apply the patch below as well? Maybe sched_clock() is
> misbehaving on your box? (with this i have 5 softlockup patches in my
> tree - and they are working fine so far.)
>
> Ingo
>
> ---------------->
> Subject: [patch] softlockup: use a reliable global time source
> From: Ingo Molnar <mingo@xxxxxxx>
>
> using sched_clock() for the soft-lockups was a bad idea, sched_clock()
> is not a reliable global time-source.
>

How reliable does it need to be? All we need is to measure "about 10
seconds"; if we can't get that out of it, how can it be good for
anything else?

J
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