From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail144.messagelabs.com (mail144.messagelabs.com [216.82.254.51]) by kanga.kvack.org (Postfix) with ESMTP id 524F68D0039 for ; Thu, 17 Feb 2011 14:12:44 -0500 (EST) Received: from mail-iy0-f169.google.com (mail-iy0-f169.google.com [209.85.210.169]) (authenticated bits=0) by smtp1.linux-foundation.org (8.14.2/8.13.5/Debian-3ubuntu1.1) with ESMTP id p1HJCBRY010250 (version=TLSv1/SSLv3 cipher=RC4-SHA bits=128 verify=FAIL) for ; Thu, 17 Feb 2011 11:12:12 -0800 Received: by iyi20 with SMTP id 20so2727098iyi.14 for ; Thu, 17 Feb 2011 11:12:11 -0800 (PST) MIME-Version: 1.0 In-Reply-To: References: <20110216185234.GA11636@tiehlicka.suse.cz> <20110216193700.GA6377@elte.hu> <20110217090910.GA3781@tiehlicka.suse.cz> <20110217163531.GF14168@elte.hu> From: Linus Torvalds Date: Thu, 17 Feb 2011 11:11:51 -0800 Message-ID: Subject: Re: BUG: Bad page map in process udevd (anon_vma: (null)) in 2.6.38-rc4 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Sender: owner-linux-mm@kvack.org List-ID: To: "Eric W. Biederman" Cc: Ingo Molnar , Michal Hocko , linux-mm@kvack.org, LKML On Thu, Feb 17, 2011 at 10:57 AM, Eric W. Biederman wrote: > > fedora 14 > ext4 on all filesystems Your dmesg snippets had ext3 mentioned, though: <6>EXT3-fs (sda1): recovery required on readonly filesystem <6>EXT3-fs (sda1): write access will be enabled during recovery <6>EXT3-fs: barriers not enabled .. <6>EXT3-fs (sda1): recovery complete <6>EXT3-fs (sda1): mounted filesystem with ordered data mode <6>dracut: Mounted root filesystem /dev/sda1 not that I see that it should matter, but there's been some bigger ext3 changes too (like the batched discard). I don't really think ext3 is the issue, though. > I was about to say this happens with DEBUG_PAGEALLOC enabled but it > appears that options keeps eluding my fingers when I have a few minutes > to play with it. =A0Perhaps this time will be the charm. Please do. You seem to be much better at triggering it than anybody else. And do the DEBUG_LIST and DEBUG_SLUB_ON things too (even if the DEBUG_LIST thing won't catch list_move()) Linus -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org