From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail137.messagelabs.com (mail137.messagelabs.com [216.82.249.19]) by kanga.kvack.org (Postfix) with SMTP id F03D98D0039 for ; Fri, 18 Feb 2011 00:20:22 -0500 (EST) From: ebiederm@xmission.com (Eric W. Biederman) 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: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Subject: Re: BUG: Bad page map in process udevd (anon_vma: (null)) in 2.6.38-rc4 Sender: owner-linux-mm@kvack.org List-ID: To: Linus Torvalds Cc: Eric Dumazet , Octavian Purdila , David Miller , Ingo Molnar , Michal Hocko , linux-mm@kvack.org, LKML Linus Torvalds writes: > On Thu, Feb 17, 2011 at 7:16 PM, Eric W. Biederman > wrote: >> >> Interesting. =C2=A0I 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, 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