linux-kernel - Re: [2.6.23-rc8-mm2] System hangs (loops?) during boot

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Message-Id: <20070929130234.e5f0f777.akpm@linux-foundation.org>
Date:	Sat, 29 Sep 2007 13:02:34 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Frans Pop <elendil@...net.nl>
Cc:	linux-kernel@...r.kernel.org,
	"Udo A. Steinberg" <us15@...inf.tu-dresden.de>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [2.6.23-rc8-mm2] System hangs (loops?) during boot

On Sat, 29 Sep 2007 21:40:22 +0200 Frans Pop <elendil@...net.nl> wrote:

> On Saturday 29 September 2007, you wrote:
> > On Sat, 29 Sep 2007 02:32:44 +0200 Frans Pop <elendil@...net.nl> wrote:
> > > On Friday 28 September 2007, Frans Pop wrote:
> > > > My Toshiba Satellite A40 (i386, P4 Mobile) hangs during boot after:
> > > > Marking TSC unstable due to: possible TSC halt in C2.
> > > > Time: acpi_pm clocksource has been installed.
> > >
> > > A few new boot attempts show the problem is more likely at:
> > > Probing IDE interface ide0...
> 
> Looks like it is both: hpet killing IDE?
> 
> > Two iterations should get you into the culprit zone.
> 
> Thanks for the pointers. Luckily I ended up in a quite narrow zone between 
> two of the points you indicated (10 iterations).
> 
> And the winner is:
> 
> 3fe6c0016fd863b233097a8219a0d8577c2fd503 is first bad commit
> commit 3fe6c0016fd863b233097a8219a0d8577c2fd503
> Author: Udo A. Steinberg <...>
>     hpet-force-enable-on-ich34
> 
> Guess the comments about thin ice and testing were justified :-)
> 
> lspci and a 2.6.23-rc6 dmesg for this system can be found in:
> http://lkml.org/lkml/2007/9/19/300

Great, thanks for doing that.

I guess I'll drop the patch for now in that case.
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