linux-kernel - Re: [Bug #11342] Linux 2.6.27-rc3: kernel BUG at mm/vmalloc.c

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Message-ID: <48B2B017.1040302@hp.com>
Date:	Mon, 25 Aug 2008 09:13:59 -0400
From:	"Alan D. Brunelle" <Alan.Brunelle@...com>
To:	"Alan D. Brunelle" <Alan.Brunelle@...com>
CC:	Linus Torvalds <torvalds@...ux-foundation.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Kernel Testers List <kernel-testers@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Arjan van de Ven <arjan@...ux.intel.com>,
	Rusty Russell <rusty@...tcorp.com.au>
Subject: Re: [Bug #11342] Linux 2.6.27-rc3: kernel BUG at mm/vmalloc.c - bisected

Adding in SLUB debugging doesn't show anything new (I think). Example
boot log (w/ initcall_debug enabled) is at:

http://free.linux.hp.com/~adb/bug.11342/prob5.txt

This has happened 3 times in a row as well. Whilst this is being looked
at, I'm going to fast-forward ahead to the latest in Linus' tree, and
see if the problem is still occurring (I think Linus' point earlier
about some sort of rogue timing and/or corruption bug is spot on, but
it's probably better to see how close to "today's tree" I can reproduce
this). I'll also try kernels w/ the problematic merge patch backed out
to see if that still "fixes" (or more likely(?) just patches over the
real problem).

Alan
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