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

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Date:	Sun, 30 Sep 2007 19:24:19 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Frans Pop <elendil@...net.nl>
Cc:	"Udo A. Steinberg" <us15@...inf.tu-dresden.de>,
	linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [2.6.23-rc8-mm2] System hangs (loops?) during boot

On Mon, 1 Oct 2007 02:07:33 +0200 Frans Pop <elendil@...net.nl> wrote:

> > That excludes all the extra stuff in -mm and should give us a good hint
> > whether HPET is really at fault.
> 
> The system does boot with rc8 + hrt1.
> 
> Andrew: any suggestions on how to trace the "real" culprit for the hang?

Not really.  Ordinarily one could move hpet-force-enable-on-ich34.patch to
start-of-series, then verify that mainline+hpet-force-enable-on-ich34.patch
works correctly, then just bisect all the other patches.

But tht doesn't work because hpet-force-enable-on-ich34.patch has a
dependency on other patches in the hrt-related patch series, and it could
be that the bug which you've exposed is already in mainline anyway.

If you had a minimal, standalone hpet-force-enable-on-ich34.patch against
mainline then you could test that against mainline.  If that also failed
then you could git-bisect mainline, applying
hpet-force-enable-on-ich34.patch each time (I've done that before).  But
this assumes that you're searching for a regression in minaline.  It may
never have worked.

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