Re: Fw: 2.6.9-rc1-mm4: swsusp + AMD64 = LOCKUP on CPU0

[Andi Kleen]

On Wed, Sep 08, 2004 at 02:51:55PM +0200, Rafael J. Wysocki wrote:
> On Wednesday 08 of September 2004 14:01, Andi Kleen wrote:
> > Pavel Machek <pavel@xxxxxx> writes:
> > 
> > > Hi!
> > > 
> > > > One for you guys on lkml ;)
> > > 
> > > It simply takes long to count pages (O(n^2) algorithm), so watchdog
> > > triggers. I have better algorithm locally, but would like merge to
> > > linus first. (I posted it to lkml some days ago, I can attach the
> > > bigdiff).
> > > 
> > > Just disable the watchdog. Suspend *is* going to take time with
> > > disabled interrupts.
> > 
> > 
> > As a short term workaround you could also add touch_nmi_watchdog()s
> > in that loop.
> 
> You mean like that:

I doubt this will help, because the number of zones is quite small.

Better check every N pages, e.g. N=100

-Andi
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