linux-kernel - Re: 2.6.20.3: kernel BUG at mm/slab.c:597 try#2

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Message-Id: <20070318220006.7230fd58.akpm@linux-foundation.org>
Date:	Sun, 18 Mar 2007 22:00:06 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Andreas Steinmetz <ast@...dv.de>
Cc:	Linux Kernel Mailinglist <linux-kernel@...r.kernel.org>,
	linux-scsi@...r.kernel.org
Subject: Re: 2.6.20.3: kernel BUG at mm/slab.c:597 try#2

On Mon, 19 Mar 2007 01:34:22 +0100 Andreas Steinmetz <ast@...dv.de> wrote:

> As posted to lkml and linux-scsi on 2007-03-15 without reply, see
> http://marc.info/?l=linux-kernel&m=117395128412313&w=2 for original post:

Repeatable oops in our most recently released kernel, nobody bothers to
reply.

> It is not so nice when one can write backup tapes but the tapes cannot
> be read. I don't know if memory management or the st driver is the
> culprit, but this is a not so nice situation.
> 
> I can't even say if the tapes are written correctly as I can't read them
> (one does not reboot production machines back to 2.4.x just to try to
> read a backup tape - I don't have 2.6.x older than 2.6.20 on these
> machines).

        BUG_ON(!PageSlab(page));

that's seriously screwed up.  Do you have CONFIG_DEBUG_SLAB enabled?  If
not, please enable it and retest.

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