linux-kernel - Re: 2.6.29-rc2 dies on startup

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Message-Id: <20090127085312.507b447a.akpm@linux-foundation.org>
Date:	Tue, 27 Jan 2009 08:53:12 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Ferenc Wagner <wferi@...f.hu>
Cc:	linux-kernel@...r.kernel.org, arve@...roid.com
Subject: Re: 2.6.29-rc2 dies on startup

On Tue, 27 Jan 2009 17:10:47 +0100 Ferenc Wagner <wferi@...f.hu> wrote:

> Andrew Morton <akpm@...ux-foundation.org> writes:
> 
> > On Mon, 19 Jan 2009 13:53:31 +0100 Ferenc Wagner <wferi@...f.hu> wrote:
> >
> >> I'm running 2.6.28 without problems.  I decided to give 2.6.29-rc2 a
> >> try.  It crashes very early during boot, see screenshot, config and lspci
> >> under http://apt.niif.hu/2.6.29-rc2/.  CPU is AMD Athlon(tm) XP 1800+,
> >> kernel command line: root=/dev/hda1 ro.  I fixed the pcf50663 compile
> >> error by hand, and have a small patch on /drivers/acpi/battery.c, but
> >> that module isn't loaded on this system.  I can hook up a serial
> >> console for further info if needed.
> >
> > What a ghastly backtrace.
> >
> > At a guess I'd say that drivers/staging/android/ram_console.c is calling
> > the reed-solomon code earlier than it's expecting.  But that might be
> > totally wrong.
> >
> > Please set CONFIG_STAGING=n and retest.
> 
> Indeed, with CONFIG_STAGING unset the kernel boots up fine!  Before
> testing I pulled again, set CONFIG_CLASSIC_RCU=y and
> CONFIG_FRAME_POINTER=y, but the resulting kernel still crashed (serial
> log attached).  Then I unset CONFIG_STAGING and that worked.

Thanks.

> Should I also test Arve's patch?

I'm sure he'd be pleased ;)
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