linux-kernel - Re: Linux 2.6.39-rc3

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Date:	Wed, 13 Apr 2011 08:46:09 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Joerg Roedel <joro@...tes.org>, Yinghai Lu <yinghai@...nel.org>
Cc:	Alex Deucher <alexdeucher@...il.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	dri-devel@...ts.freedesktop.org, "H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>, Tejun Heo <tj@...nel.org>
Subject: Re: Linux 2.6.39-rc3


* Joerg Roedel <joro@...tes.org> wrote:

> > > The problem does not happen with 2.6.38. I try to bisect this further 
> > > down to a commit. Alex, please let me know if you need any further 
> > > information.
> > 
> > If you can bisect it, that would be great.  Thanks,
> 
> Bisecting actually gave a very weird result. It points to
> 
> 	d2137d5af4259f50c19addb8246a186c9ffac325
> 
> which is a merge-commit in the x86 tree. Even more weird is that this
> notebook is the only machine with these symptoms, all my other boxes are
> fine.
>
> During the bisect I tested commits from Yinghai which were good. It seems 
> like the problem appeared with the merge.

There's a similar looking bug being debugged here:

  https://bugzilla.kernel.org/show_bug.cgi?id=33012

Could you please send the before/after bootlog (in particular all memory init 
messages included) and your .config?

 before:  f005fe12b90c: x86-64: Move out cleanup higmap [_brk_end, _end) out of init_memory_mapping()
  after:  d2137d5af425: Merge branch 'linus' into x86/bootmem

I've Cc:-ed more people who might have an idea about it.

Thanks,

	Ingo
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