linux-kernel - Re: 2.6.23-rc4-mm1 and -rc6-mm1: boot failure on HP nx6325, related to clockevents

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Date:	Mon, 24 Sep 2007 10:07:23 +0200
From:	Thomas Gleixner <tglx@...utronix.de>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	Andi Kleen <ak@...e.de>, Andrew Morton <akpm@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: 2.6.23-rc4-mm1 and -rc6-mm1: boot failure on HP nx6325,
	related to clockevents

On Sun, 2007-09-23 at 22:52 +0200, Rafael J. Wysocki wrote:
> > > Second, noacpitimer added to the command line makes all of the kernels, up to
> > > and including 2.6.23-rc6-mm1, boot (this seems to be 100% reproducible).
> > 
> > That's valuable information. Can you please provide a boot log of one of
> > those with an additional "apic=verbose" on the command line ?
> 
> Attached is the dmesg output from the 2.6.23-rc6 kernel with the patchset:
> 
> http://tglx.de/projects/hrtimers/2.6.23-rc4/patch-2.6.23-rc4-hrt1.patches.tar.bz2
> 
> applied.  I also have the 2.6.23-rc6-mm1 dmesg output ready, but there's some
> -mm-specific noise in it.  Please let me know if you want it, though.

Hmm:

> Command line: root=/dev/sda3 vga=792 resume=/dev/sda1 noacpitimer apic=verbose 2
--------------------------------------------------------^^^^^^^^^^^

noacpitimer is not a valid commandline option.

I asked for: 
>> > > noapictimer

So I really wonder, why noacpitimer on the kernel command line makes any
difference. I'm confused.

	tglx


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