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From: Thomas Gleixner <tglx@linutronix.de>
To: Ingo Molnar <mingo@elte.hu>
Cc: Pavel Machek <pavel@ucw.cz>, Len Brown <len.brown@intel.com>,
	Linux-pm mailing list <linux-pm@lists.osdl.org>,
	jbohac@suse.cz, kernel list <linux-kernel@vger.kernel.org>,
	jikos@suse.cz, "Rafael J. Wysocki" <rjw@sisk.pl>,
	Andrew Morton <akpm@osdl.org>
Subject: Re: tsc breaks atkbd suspend
Date: Tue, 19 Feb 2008 17:51:01 +0100 (CET)	[thread overview]
Message-ID: <alpine.LFD.1.00.0802191748110.7583@apollo.tec.linutronix.de> (raw)
In-Reply-To: <20080219140552.GC9965@elte.hu>

On Tue, 19 Feb 2008, Ingo Molnar wrote:
> * Pavel Machek <pavel@ucw.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.

Right. The breakage was introduced there when IA64 switched to
GENERIC_TIME and the X86_TSC dependency was added.

Thanks,

	tglx

  reply	other threads:[~2008-02-19 16:52 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-02-18 13:38 Pavel Machek
2008-02-18 14:26 ` Thomas Gleixner
2008-02-18 14:37   ` Pavel Machek
2008-02-18 15:12     ` Thomas Gleixner
2008-02-19  9:20       ` Pavel Machek
2008-02-19  9:37       ` Pavel Machek
2008-02-19 10:00       ` Pavel Machek
2008-02-19 14:05         ` Ingo Molnar
2008-02-19 16:51           ` Thomas Gleixner [this message]
2008-02-20  0:17             ` Len Brown
2008-02-20  6:51               ` Thomas Gleixner
2008-02-19 10:02       ` notsc is ignored on common configurations Pavel Machek
2008-02-19 11:26         ` Ingo Molnar
2008-02-19 11:29           ` Pavel Machek

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