From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail143.messagelabs.com (mail143.messagelabs.com [216.82.254.35]) by kanga.kvack.org (Postfix) with ESMTP id 98A3B6B0044 for ; Thu, 5 Nov 2009 10:27:08 -0500 (EST) Date: Thu, 5 Nov 2009 16:26:26 +0100 Subject: Re: OOM killer, page fault Message-ID: <20091105152626.GD21659@gamma.logic.tuwien.ac.at> References: <20091030063216.GA30712@gamma.logic.tuwien.ac.at> <20091102005218.8352.A69D9226@jp.fujitsu.com> <20091102135640.93de7c2a.minchan.kim@barrios-desktop> <28c262360911012300h4535118ewd65238c746b91a52@mail.gmail.com> <20091102155543.E60E.A69D9226@jp.fujitsu.com> <20091102140216.02567ff8.kamezawa.hiroyu@jp.fujitsu.com> <20091102141917.GJ2116@gamma.logic.tuwien.ac.at> <28c262360911020640k3f9dfcdct2cac6cc1d193144d@mail.gmail.com> <20091105132109.GA12676@gamma.logic.tuwien.ac.at> <28c262360911050719u4de4223eub08c0f7ea8797137@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <28c262360911050719u4de4223eub08c0f7ea8797137@mail.gmail.com> From: Norbert Preining Sender: owner-linux-mm@kvack.org To: Minchan Kim Cc: KAMEZAWA Hiroyuki , KOSAKI Motohiro , linux-kernel@vger.kernel.org, linux-mm List-ID: Hi Kim, > > sorry for the late reply. I have two news, one good and one bad: The good > > being that I can reproduce the bug by running VirtualBox with some W7 > > W7 means "Windows 7"? Yes, sorry for the shorthand. > > I know it sounds completely crazy, the patch only does harmless things > > afais. But I tried it. Several times. rc6+patch never did boot, while > > rc5 without path did boot. Then I patched it into -rc5, recompiled, and > > boom, no boot. booting into .31.5, recompiling rc6 and rc5 without > > that patch and suddenly rc6 boots (and I am sure rc5, too). > > Hmm. It's out of my knowledge. > Probably, It's because WARN_ON? > Could you try it with omitting WARN_ON, again? Will do that. > > Ah yes, I can reproduce the original strange bug with oom killer! > > Sounds good to me. > Could you tell me your test scenario, your system info(CPU, RAM) and > config? > I want to reproduce it in my mahchine to not bother you. :) Puhh, well, I meant "I could reproduce it", but not "I have a clear idea what steps to be taken to reproduce it" ;-) Well here is what I can tell you: actual hardware: Intel(R) Core(TM)2 Duo CPU P9500 Memory 2G Config of my kernel attached. Virtual Machine (VirtualBox, not the OSE variant, I need USB 2.0 support for GPS stuff): VirtualBox 3.0.10 memory for the machine: 1G (50%) ACPI and IO/APIC turned on 1 processor with PAE/NX VT-x and Nested Paging activated Display 128M (need more details?) I will remove the WARN_ON and reboot and see if that works. If yes I try to recreate the problem. Best wishes Norbert ------------------------------------------------------------------------------- Dr. Norbert Preining Associate Professor JAIST Japan Advanced Institute of Science and Technology preining@jaist.ac.jp Vienna University of Technology preining@logic.at Debian Developer (Debian TeX Task Force) preining@debian.org gpg DSA: 0x09C5B094 fp: 14DF 2E6C 0307 BE6D AD76 A9C0 D2BF 4AA3 09C5 B094 ------------------------------------------------------------------------------- BROMSGROVE Any urban environment containing a small amount of dogturd and about forty-five tons of bent steel pylon or a lump of concrete with holes claiming to be sculpture. 'Oh, come my dear, and come with me. And wander 'neath the bromsgrove tree' - Betjeman. --- Douglas Adams, The Meaning of Liff -- 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/ . Don't email: email@kvack.org