Re: 2.6.11-rc3-mm1: softlockup and suspend/resume

[Pavel Machek]

Hi!

> > It looks like softlockup is not happy with suspend/resume:
> 
> Does it happen while writing out state to disk? I've attached a patch
> for touch_softlockup_watchdog() below - but i think what we really need
> is another mechanism. I'm wondering what the primary reason for the
> lockup-detection is - did swsuspend stop the the softlockup threads?

swsusp likes all threads stopped. You can mark threads
PF_NOFREEZE and swsusp will leave them alone.
								Pavel

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