linux-kernel - Re: tsc breaks atkbd suspend

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Message-ID: <20080219140552.GC9965@elte.hu>
Date:	Tue, 19 Feb 2008 15:05:52 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Pavel Machek <pavel@....cz>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	Len Brown <len.brown@...el.com>,
	Linux-pm mailing list <linux-pm@...ts.osdl.org>,
	jbohac@...e.cz, kernel list <linux-kernel@...r.kernel.org>,
	jikos@...e.cz, "Rafael J. Wysocki" <rjw@...k.pl>,
	Andrew Morton <akpm@...l.org>
Subject: Re: tsc breaks atkbd suspend


* Pavel Machek <pavel@....cz> wrote:

> TSC is used even on machines when CONFIG_X86_TSC is not set (X86_TSC 
> means _require_ TSC), but it is not properly disabled when it is 
> unusable, because acpi code understood the config switch as "may use 
> TSC".
> 
> This actually fixes suspend problems on my x60.

ah! This makes tons of sense. I've applied your patch - but i guess it 
should go via the ACPI tree.

	Ingo
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