linux-kernel - Re: [bug] mm/slab.c boot crash in -git, "kernel BUG at mm/slab.c:2103!"

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Message-ID: <Pine.LNX.4.64.0804111223380.20334@schroedinger.engr.sgi.com>
Date:	Fri, 11 Apr 2008 12:25:39 -0700 (PDT)
From:	Christoph Lameter <clameter@....com>
To:	travis@....com
cc:	Pekka Enberg <penberg@...helsinki.fi>, Ingo Molnar <mingo@...e.hu>,
	linux-kernel@...r.kernel.org, Mel Gorman <mel@....ul.ie>,
	Nick Piggin <npiggin@...e.de>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>
Subject: Re: [bug] mm/slab.c boot crash in -git, "kernel BUG at mm/slab.c:2103!"

On Fri, 11 Apr 2008, Pekka Enberg wrote:

> slab bug and I don't see any recent changes to the page allocator
> either that would explain this.

I also have an internal report that x86-git causes boot to fail with an 8p 
if one starts with a x86_64 config file and then converts to 
x86_32. Somehow the NR_CPUS is set to 255 in that case. Could this 
exhaust memory? I guess the per cpu cleanup work may figure in that area.
Mike?

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