From: "Rafael J. Wysocki" <rjw@sisk.pl>
To: linux-kernel@vger.kernel.org
Subject: Re: Fw: 2.6.9-rc1-mm4: swsusp + AMD64 = LOCKUP on CPU0
Date: Wed, 8 Sep 2004 14:19:15 +0200
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Cc: Pavel Machek <pavel@ucw.cz>, Andrew Morton <akpm@osdl.org>,
       Patrick Mochel <mochel@digitalimplant.org>,
       Ingo Molnar <mingo@redhat.com>
References: <20040908021637.57525d43.akpm@osdl.org> <20040908102652.GA2921@atrey.karlin.mff.cuni.cz>
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On Wednesday 08 of September 2004 12:26, Pavel Machek wrote:
> 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.

Eeek.  I can't disable the NMI watchdog on x86-64, can I?  According to 
Documentation/nmi_watchdog.txt:

"For x86-64, the needed APIC is always compiled in, and the NMI watchdog is
always enabled with I/O-APIC mode (nmi_watchdog=1)."

Greets,
RJW

-- 
- Would you tell me, please, which way I ought to go from here?
- That depends a good deal on where you want to get to.
		-- Lewis Carroll "Alice's Adventures in Wonderland"
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