linux-kernel - Re: 2.6.39-rc2 boot crash

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Date:	Wed, 06 Apr 2011 11:52:33 -0700
From:	Dave Hansen <dave@...ux.vnet.ibm.com>
To:	Eric B Munson <emunson@...bm.net>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: 2.6.39-rc2 boot crash

On Wed, 2011-04-06 at 14:47 -0400, Eric B Munson wrote:
> I am seeing a boot crash on my machine with 2.6.39-rc2.  I don't yet have
> netconsole setup and I don't have serial so the best I can do at the moment
> is a couple of pictures of the stack trace.
> 
> http://tinypic.com/r/2zsr19i/7
> 
> And 
> 
> http://tinypic.com/r/2iw22dj/7
> 
> I will try and get a net console working for better output, is there
> anything else that would help?

This:

> boot_delay=     Milliseconds to delay each printk during boot.
>                         Values larger than 10 seconds (10000) are changed to
>                         no delay (0).
>                         Format: integer

sometimes gives you enough time to get something out of the system.  You
might also want to try and boot the same kernel in a VM.  It might just
be a weird configuration issue, or maybe even a lockdep bug.  If it's
not hardware related, booting in a VM should help a lot.

-- Dave

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