Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752759Ab1BRFUr (ORCPT ); Fri, 18 Feb 2011 00:20:47 -0500 Received: from out02.mta.xmission.com ([166.70.13.232]:56846 "EHLO out02.mta.xmission.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752037Ab1BRFUS convert rfc822-to-8bit (ORCPT ); Fri, 18 Feb 2011 00:20:18 -0500 From: ebiederm@xmission.com (Eric W. Biederman) To: Linus Torvalds Cc: Eric Dumazet , Octavian Purdila , David Miller , Ingo Molnar , Michal Hocko , linux-mm@kvack.org, LKML References: <20110216185234.GA11636@tiehlicka.suse.cz> <20110216193700.GA6377@elte.hu> <20110217090910.GA3781@tiehlicka.suse.cz> <20110217163531.GF14168@elte.hu> Date: Thu, 17 Feb 2011 21:20:05 -0800 In-Reply-To: (Linus Torvalds's message of "Thu, 17 Feb 2011 20:30:42 -0800") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8BIT X-XM-SPF: eid=;;;mid=;;;hst=in02.mta.xmission.com;;;ip=98.207.153.68;;;frm=ebiederm@xmission.com;;;spf=neutral X-XM-AID: U2FsdGVkX19FaGZJYzaTBl/mACS4Q/wIRSXAfyxd6gI= X-SA-Exim-Connect-IP: 98.207.153.68 X-SA-Exim-Mail-From: ebiederm@xmission.com X-Spam-Report: * 7.0 XM_URI_RBL URI blacklisted in uri.bl.xmission.com * [URIs: linux-foundation.org] * -1.0 ALL_TRUSTED Passed through trusted hosts only via SMTP * 0.0 T_TM2_M_HEADER_IN_MSG BODY: T_TM2_M_HEADER_IN_MSG * -3.0 BAYES_00 BODY: Bayes spam probability is 0 to 1% * [score: 0.0000] * -0.0 DCC_CHECK_NEGATIVE Not listed in DCC * [sa07 1397; Body=1 Fuz1=1 Fuz2=1] * 0.0 T_TooManySym_01 4+ unique symbols in subject * 0.0 T_TooManySym_02 5+ unique symbols in subject * 0.4 UNTRUSTED_Relay Comes from a non-trusted relay X-Spam-DCC: XMission; sa07 1397; Body=1 Fuz1=1 Fuz2=1 X-Spam-Combo: ***;Linus Torvalds X-Spam-Relay-Country: Subject: Re: BUG: Bad page map in process udevd (anon_vma: (null)) in 2.6.38-rc4 X-Spam-Flag: No X-SA-Exim-Version: 4.2.1 (built Fri, 06 Aug 2010 16:31:04 -0600) X-SA-Exim-Scanned: Yes (on in02.mta.xmission.com) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1075 Lines: 30 Linus Torvalds writes: > On Thu, Feb 17, 2011 at 7:16 PM, Eric W. Biederman > wrote: >> >> Interesting.  I just got this with DEBUG_PAGEALLOC >> It looks like something in DEBUG_PAGEALLOC is interfering with taking a >> successful crashdump. > > Hmm. I don't see why, but we don't care. Just the IP and the Code: > section is plenty good enough. I agree that is a different problem. I care because I don't get my automatic reboot after the crash. Which means things don't recover automatically, and I have to futz with the machine. > The patch from Eric Dumazet (which adds a few more cases to my patch > and hopefully catches them all) almost certainly fixes this rather > nasty memory corruption. I will see if I can dig it up and get it into my test kernel. Eric -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/