linux-kernel - Re: FW: ACPI Warning: Invalid length for Pm1aControlBlock: 32, using default 16 (20090903/tbfadt-607)

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Message-ID: <20110115230053.GA22873@srcf.ucam.org>
Date:	Sat, 15 Jan 2011 23:00:54 +0000
From:	Matthew Garrett <mjg59@...f.ucam.org>
To:	"Berahalli, Sreenivasa Reddy" <sreenivasa-reddy.berahalli@...com>
Cc:	"linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: FW: ACPI Warning: Invalid length for Pm1aControlBlock: 32,
	using default 16 (20090903/tbfadt-607)

On Fri, Jan 14, 2011 at 06:33:13PM +0000, Berahalli, Sreenivasa Reddy wrote:

> This warning message means the length of register in the ACPI tables and the default values are different.
> We see it as  over-aggressive check in Linux, with no issue.

Linux sees it as a deviation between the BIOS and the spec, which may 
cause issues if it turns out that we treat this behaviour differently to 
tested operating systems. Why not fix your BIOS?

-- 
Matthew Garrett | mjg59@...f.ucam.org
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