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From: Len Brown <lenb@kernel.org>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>, 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 19:17:36 -0500	[thread overview]
Message-ID: <200802191917.36641.lenb@kernel.org> (raw)
In-Reply-To: <alpine.LFD.1.00.0802191748110.7583@apollo.tec.linutronix.de>

On Tuesday 19 February 2008 11:51, Thomas Gleixner wrote:
> 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

please do not.

> > - but i guess it  should go via the ACPI tree.

yes.

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

so do we need a patch for 2.6.23.stable and 2.6.24.stable?

thanks,
-Len

  reply	other threads:[~2008-02-20  0:18 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-02-18 13:38 tsc breaks atkbd suspend 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
2008-02-20  0:17             ` Len Brown [this message]
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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