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>
Subject: Re: 2.6.16-rc5: known regressions [TP 600X S3, vanilla DSDT] 
In-Reply-To: Your message of "Thu, 23 Mar 2006 17:10:00 +0800."
             <3ACA40606221794F80A5670F0AF15F840B4692FA@pdsmsx403> 
Date: Thu, 23 Mar 2006 14:19:59 -0500
From: Sanjoy Mahajan <sanjoy@mrao.cam.ac.uk>
Message-Id: <E1FMVLj-0001D8-Vc@approximate.corpus.cam.ac.uk>
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 837
Lines: 22

> Does it mean we need to slow down  acpi_ec_intr_read/write ?
> Could you try to insert acpi_os_stall (100)  after  ACPI_DEBUG_PRINT
> statement both in acpi_ec_intr_read/write.

I added that line in those two places.  The result refused to hang with
acpi_debug_layer=0x00100010, but it did hang (on the usual second sleep)
with it set to 0x10.

> Hmmm, then I cannot get the ec access log for hang case?!

It seems difficult, but let's keep trying if you have other ideas for
how to get it.

-Sanjoy

`A society of sheep must in time beget a government of wolves.'
   - Bertrand de Jouvenal
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