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Subject: RE: [linux-usb-devel] Re: Linux 2.6.16-rc3
Date: Wed, 15 Feb 2006 13:58:51 +0800
Message-ID: <3ACA40606221794F80A5670F0AF15F840AF2824B@pdsmsx403>
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Thread-Topic: [linux-usb-devel] Re: Linux 2.6.16-rc3
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From: "Yu, Luming" <luming.yu@intel.com>
To: "Sanjoy Mahajan" <sanjoy@mrao.cam.ac.uk>,
       "Brown, Len" <len.brown@intel.com>
Cc: "David S. Miller" <davem@davemloft.net>, <akpm@osdl.org>,
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>> I don't think anybody claimed this isn't a regression for the 600X.
>
>I narrowed it further.  The short story is that this commit (diff below
>sig) makes the second S3 sleep go into the endless loop, if the loaded
>modules are exactly thermal, processor, intel_agp, and agpgart:

If you believe this patch is the root cause of the regression you have
been seeing. Then, I would say the thing is a little bit different with
ec_intr=0 and ec_intr=1. Basically, ec_intr=0 will disable EC related
ACPI interrupt before finishing _Qxx method execution , but ec_intr=1
always enable EC interrupt.  This could cause some hardware/BIOS
events get lost under ec_intr=0, which shouldn't lost.

We need to figure out what's going on here rather than falling back to
ec_intr=0 behavior.

--Luming
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