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Date: Mon, 05 Nov 2012 12:58:21 +0200
From: Andriy Gapon <avg@FreeBSD.org>
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To: Tom Lislegaard <Tom.Lislegaard@proact.no>
Subject: Re: 9-Stable panic: resource_list_unreserve: can't find resource
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on 05/11/2012 12:26 Tom Lislegaard said the following:
>> -----Original Message-----
>> From: Andriy Gapon [mailto:avg@FreeBSD.org]
>> I see.  Could you please try setting debug.acpi.max_threads=1 in /boot/loader.conf, reboot and see if
>> that makes any difference?
> 
> It does make a difference. I've had the machine running over the week-end, and haven't had a crash in 56 hours.
> 
> After applying the setting I get some errors on reboot, no idea if they are harmful in any way (none that I have notced):
> 
> AcpiOsExecute: failed to enqueue task, consider increasing the debug.acpi.max_tasks tunable
> ACPI Error: Method parse/execution failed [\\PNOT] (Node 0xfffffe00052e6400), AE_NO_MEMORY (20110527/psparse-560)
> ACPI Error: Method parse/execution failed [\\_SB_.AC__._PSR] (Node 0xfffffe00052f57c0), AE_NO_MEMORY (20110527/psparse-560)
> 
> The same messages repeats 6 times

Thank you for the test!
Try to set debug.acpi.max_tasks to 128 or even higher to get rid of the new ACPI
errors.

Additionally I would like to ask you to do the following test.
Please stop devd and then run it (as root) from command line as such devd -D -d.
Please check what event are reported by devd.  In particular I am interested in
ACAD events, but all high frequency events are important.

Thanks!
-- 
Andriy Gapon