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: Thu, 23 Mar 2006 14:19:59 -0500
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In-Reply-To: Your message of "Thu, 23 Mar 2006 17:10:00 +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>

> 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