From mboxrd@z Thu Jan  1 00:00:00 1970
From: Sanjoy Mahajan <sanjoy@mrao.cam.ac.uk>
Subject: Re: 2.6.16-rc5: known regressions [TP 600X S3, vanilla DSDT]
Date: Sat, 18 Mar 2006 15:48:25 +0000
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In-Reply-To: Your message of "Sat, 18 Mar 2006 23:10:32 +0800."
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To: "Yu, Luming" <luming.yu@intel.com>
Cc: linux-kernel@vger.kernel.org, Linus Torvalds <torvalds@osdl.org>, Andrew Morton <akpm@osdl.org>, Tom Seeley <redhat@tomseeley.co.uk>, Dave Jones <davej@redhat.com>, Jiri Slaby <jirislaby@gmail.com>, michael@mihu.de, mchehab@infradead.org, Brian Marete <bgmarete@gmail.com>, Ryan Phillips <rphillips@gentoo.org>, gregkh@suse.de, "Brown, Len" <len.brown@intel.com>, linux-acpi@vger.kernel.org, Mark Lord <lkml@rtr.ca>, Randy Dunlap <rdunlap@xenotime.net>, jgarzik@pobox.com, Duncan <1i5t5.duncan@cox.net>, Pavlik Vojtech <vojtech@suse.cz>, Meelis Roos <mroos@linux.ee>

> Please try additional ugly hack
>  5. in acpi_os_queue_for_execution:
>	if(acpi_in_suspend == YES)
>		do nothing.

Am compiling it.  If acpi_in_suspend, I've had it do
return_ACPI_STATUS(AE_BAD_PARAMETER).  Is there a better error code to
use?  I didn't want to use AE_OK, since the caller might think that
the function will be executed eventually, and might do something silly
like wait for it to be executed -- and produce another hang.  I didn't
know, but to be safe I wanted to return an error code.

> Also, please add acpi_debug_layer=0x10 acpi_debug_leve=0x10 boot
> option, then you can observe what methods were executed before
> suspend.

That's in my lilo.conf so all kernels I test use those options.  I can
send you the dmesgs from the suspends without the ugly hack (and will
send them from the upcoming suspends, with the ugly hack).

-Sanjoy

`Never underestimate the evil of which men of power are capable.'
         --Bertrand Russell, _War Crimes in Vietnam_, chapter 1.