linux-kernel - Re: [2.6.28-rc2] EeePC ACPI errors & exceptions

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Message-ID: <4FFABF28C8%linux@youmustbejoking.demon.co.uk>
Date:	Tue, 28 Oct 2008 11:16:22 +0000
From:	Darren Salt <linux@...mustbejoking.demon.co.uk>
To:	Zhao Yakui <yakui.zhao@...el.com>
Cc:	linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org
Subject: Re: [2.6.28-rc2] EeePC ACPI errors & exceptions

I demand that Zhao Yakui may or may not have written...

> On Mon, 2008-10-27 at 15:52 -0700, Darren Salt wrote:
>> EeePC 901, BIOS revision 1603, current Debian lenny; running on AC.
>> I've noticed the following errors & exceptions, apparently coinciding with
>> the startup of xfce4-sensors-plugin:

>> ACPI: EC: missing confirmations, switch off interrupt mode.
>> ACPI Exception (evregion-0419): AE_TIME, Returned by Handler for [EmbeddedControl] [20080926]
>> ACPI Error (psparse-0524): Method parse/execution failed [\_SB_.PCI0.SBRG.EC0_.BST2] (Node f7030d38), AE_TIME
>> ACPI Error (psparse-0524): Method parse/execution failed [\_SB_.PCI0.CBST] (Node f70336f8), AE_TIME
>> ACPI Error (psparse-0524): Method parse/execution failed [\_SB_.PCI0.BAT0._BST] (Node f7031c48), AE_TIME
>> ACPI Exception (battery-0360): AE_TIME, Evaluating _BST [20080926]

> Will you please try the attached patch on the 2.6.28-rc2 and see whether
> the issue still exists?

> After the test, please attach the output of dmesg.

I later noticed that ACPI functions (lid, hot keys etc.) were effectively
disabled by that bug – acpi_listen reported nothing at all.

With the patch, those ACPI errors are gone and the ACPI functions work again.
I see no other significant differences, but output is attached regardless
along with an ACPI dump. (rt2860sta is also present.)

(This leaves only the I/O resource conflict; but, unlike this, that's also
present in 2.6.27, doesn't seem to cause any harm, and looks like it's
specific to BIOS rev. 1603 and possibly others > 1301.)

[snip]
-- 
| Darren Salt    | linux or ds at              | nr. Ashington, | Toon
| RISC OS, Linux | youmustbejoking,demon,co,uk | Northumberland | Army
| + Use more efficient products. Use less.          BE MORE ENERGY EFFICIENT.

I have 240 airconditioning in my car; 2 windows down at 40mph.

Download attachment "eee901-1603.acpi.gz" of type "application/x-gzip" (10303 bytes)

Download attachment "dmesg.gz" of type "application/x-gzip" (11106 bytes)