From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail138.messagelabs.com (mail138.messagelabs.com [216.82.249.35]) by kanga.kvack.org (Postfix) with ESMTP id B497A8D0039 for ; Fri, 18 Feb 2011 11:39:53 -0500 (EST) Received: from mail-iw0-f169.google.com (mail-iw0-f169.google.com [209.85.214.169]) (authenticated bits=0) by smtp1.linux-foundation.org (8.14.2/8.13.5/Debian-3ubuntu1.1) with ESMTP id p1IGdN1f032452 (version=TLSv1/SSLv3 cipher=RC4-SHA bits=128 verify=FAIL) for ; Fri, 18 Feb 2011 08:39:23 -0800 Received: by iwl42 with SMTP id 42so502110iwl.14 for ; Fri, 18 Feb 2011 08:39:22 -0800 (PST) MIME-Version: 1.0 In-Reply-To: <20110218162623.GD4862@tiehlicka.suse.cz> References: <20110216185234.GA11636@tiehlicka.suse.cz> <20110216193700.GA6377@elte.hu> <20110217090910.GA3781@tiehlicka.suse.cz> <20110217163531.GF14168@elte.hu> <20110218122938.GB26779@tiehlicka.suse.cz> <20110218162623.GD4862@tiehlicka.suse.cz> From: Linus Torvalds Date: Fri, 18 Feb 2011 08:39:02 -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 Sender: owner-linux-mm@kvack.org List-ID: To: Michal Hocko Cc: "Eric W. Biederman" , Ingo Molnar , linux-mm@kvack.org, LKML , David Miller , Eric Dumazet On Fri, Feb 18, 2011 at 8:26 AM, Michal Hocko wrote: >> Now, I will try with the 2 patches patches in this thread. I will also >> turn on DEBUG_LIST and DEBUG_PAGEALLOC. > > I am not able to reproduce with those 2 patches applied. Thanks for verifying. Davem/EricD - you can add Michal's tested-by to the patches too. And I think we can consider this whole thing solved. It hopefully also explains all the other random crashes that EricB saw - just random memory corruption in other datastructures. EricB - do all your stress-testers run ok now? 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