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Date: Wed, 26 Sep 2007 19:30:52 -0400
From: Chuck Ebbert <cebbert@redhat.com>
Organization: Red Hat
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To: Thomas Gleixner <tglx@linutronix.de>
CC: Linus Torvalds <torvalds@linux-foundation.org>,
       "Rafael J. Wysocki" <rjw@sisk.pl>, Andi Kleen <ak@suse.de>,
       Andrew Morton <akpm@linux-foundation.org>,
       LKML <linux-kernel@vger.kernel.org>, Ingo Molnar <mingo@elte.hu>
Subject: Re: [REGRESSION from 2.6.23-rc8]
References: <200709231257.12213.rjw@sisk.pl>	 <1190832665.23376.38.camel@chaos> <200709262149.54732.rjw@sisk.pl>	 <200709262300.28336.rjw@sisk.pl> <1190842476.23376.57.camel@chaos>	 <alpine.LFD.0.999.0709261521440.3579@woody.linux-foundation.org> <1190846101.23376.64.camel@chaos>
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On 09/26/2007 06:35 PM, Thomas Gleixner wrote:
> 
> It's even worse than I thought on the first check:
> 
> "noapictimer" on the command line of an SMP box prevents _ONLY_ the boot
> CPU apic timer from being used. But the secondary CPU is still
> unconditionally setting up the APIC timer and uses the non calibrated
> variable calibration_result, which is of course 0, to setup the APIC
> timer. Wreckage guaranteed.
> 

Well, that would explain a lot of the things I've been seeing...