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From: John Levon <movement@marcelothewonderpenguin.com>
To: linux-kernel@vger.kernel.org
Subject: Re: do_gettimeofday vs. rdtsc in the scheduler
Date: Fri, 20 Sep 2002 16:26:18 +0100	[thread overview]
Message-ID: <20020920152618.GA90329@compsoc.man.ac.uk> (raw)
In-Reply-To: <1032442039.26712.32.camel@irongate.swansea.linux.org.uk>

On Thu, Sep 19, 2002 at 02:27:19PM +0100, Alan Cox wrote:

> > - There are plenty of laptops whose CPUs have local APICs but whose
> >   BIOSen go berserk if you enable it. There are also plenty of laptops
> 
> Frequently because we don't disable it again before any APM calls I
> suspect. When a CPU goes into sleep mode you must disable PMC and local
> apic timer interrupts.

Isn't this exactly what apic_pm_suspend() does ? Or is that in 2.5 only ?

regards
john
-- 
Support the project - http://www.gtonline.net/private/mapp/project/

  parent reply	other threads:[~2002-09-20 15:21 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <200209172020.g8HKKPF13227@eng2.beaverton.ibm.com.suse.lists.linux.kernel>
     [not found] ` <1032294559.22815.180.camel@cog.suse.lists.linux.kernel>
     [not found]   ` <20020917.133933.69057655.davem@redhat.com.suse.lists.linux.kernel>
2002-09-17 21:00     ` do_gettimeofday vs. rdtsc in the scheduler Andi Kleen
2002-09-17 20:54       ` David S. Miller
2002-09-17 21:28         ` Alan Cox
2002-09-17 21:18           ` David S. Miller
2002-09-17 22:02             ` James Cleverdon
2002-09-17 22:44               ` Andi Kleen
2002-09-17 22:38                 ` David S. Miller
2002-09-17 22:55                   ` James Cleverdon
2002-09-17 23:12                     ` David S. Miller
2002-09-17 23:32                       ` john stultz
2002-09-17 23:32                         ` David S. Miller
2002-09-17 23:52                           ` Andi Kleen
2002-09-17 23:46                             ` David S. Miller
2002-09-17 23:58                               ` Andi Kleen
2002-09-17 23:51                                 ` David S. Miller
2002-09-18  0:05                                   ` Andi Kleen
2002-09-18  1:04                                     ` James Cleverdon
2002-09-19 18:02                                       ` Andrea Arcangeli
2002-09-20 11:04                                     ` Maciej W. Rozycki
2002-09-19 11:20                                 ` Mikael Pettersson
2002-09-19 13:27                                   ` Alan Cox
2002-09-19 13:39                                     ` Mikael Pettersson
2002-09-20 15:26                                     ` John Levon [this message]
2002-09-18  6:40               ` Vojtech Pavlik
2002-09-19 18:04                 ` Andrea Arcangeli
     [not found] <200209172020.g8HKKPF13227@eng2.beaverton.ibm.com>
2002-09-17 20:29 ` Fwd: " john stultz
2002-09-17 20:39   ` David S. Miller
2002-09-17 20:57     ` john stultz
2002-09-17 20:56       ` David S. Miller
2002-09-09 22:21 anton wilson

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