linux-kernel - Re: 2.6.21-mm1 and now 2.6.21-git: SLUB Crashes on boot

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Message-ID: <Pine.LNX.4.64.0705081557560.15790@schroedinger.engr.sgi.com>
Date:	Tue, 8 May 2007 16:04:49 -0700 (PDT)
From:	Christoph Lameter <clameter@....com>
To:	Kevin Winchester <kjwinchester@...il.com>
cc:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: 2.6.21-mm1 and now 2.6.21-git: SLUB Crashes on boot

On Tue, 8 May 2007, Kevin Winchester wrote:

> x86_64 UP Athlon64 I get a crash on boot using SLUB.  Switching to SLAB makes
> it go away.  I don't have a serial console, so the best I have is a digital
> photo of as many lines as my VGA console was able to get (60 or so).  Is there
> a better way to capture the oops output so that the full trace canbe seen?
> 
> http://picasaweb.google.com/kjwinchester/Linux/photo#5061982383505227842

It fails to create a slab. There should be some of message above what I 
can see that would indicate what went wrong.

Please try to reboot and specify "slub_debug" as a kernel parameter. If it 
boots then send us the kernel log output. Must have something to do with 
how the scsi slab is created in scsi_setup_command_freelist.

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