From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261613AbVGZCna (ORCPT ); Mon, 25 Jul 2005 22:43:30 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261619AbVGZCna (ORCPT ); Mon, 25 Jul 2005 22:43:30 -0400 Received: from nproxy.gmail.com ([64.233.182.195]:35763 "EHLO nproxy.gmail.com") by vger.kernel.org with ESMTP id S261613AbVGZCnZ convert rfc822-to-8bit (ORCPT ); Mon, 25 Jul 2005 22:43:25 -0400 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:reply-to:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition; b=K0/g6SnY9POSmbFdJf8AUQ/jI+7sxmn96+cpVipTk0gDnlk3gKHjVIQpxAe1dxGHwlJa4PFV6F/2E5cBeaDecW9fMpC4KlDDPaDC8kGu76IrIwb64Rd2Msy7LEAV9uGEuHA6OZSdvCBxaclqFixqThy3rxyx6udGP0qSzKWzbVc= Message-ID: Date: Tue, 26 Jul 2005 04:43:19 +0200 From: Benoit Dejean Reply-To: Benoit Dejean To: linux-kernel@vger.kernel.org Subject: mlock oops Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi, i'm using Debian SID kernel-image-2.6.11-powerpc [1] (which is not tainted). I've unfortunately started sysutils [2] memtest as user (no caps, no sticky bit). /usr/sbin/memtest all I was expecting the OOMK to rescue my system by killing memtest. As expected, a few minutes later, my system was back. But an oops occured. Here's dmesg output : oom-killer: gfp_mask=0xd2 DMA per-cpu: cpu 0 hot: low 32, high 96, batch 16 cpu 0 cold: low 0, high 32, batch 16 Normal per-cpu: empty HighMem per-cpu: empty Free pages: 2856kB (0kB HighMem) Active:57185 inactive:57079 dirty:0 writeback:0 unstable:0 free:714 slab:3825 mapped:114890 pagetables:822 DMA free:2856kB min:2896kB low:3620kB high:4344kB active:228740kB inactive:228316kB present:524288kB pages_scanned:538055 all_unreclaimable? yes lowmem_reserve[]: 0 0 0 Normal free:0kB min:0kB low:0kB high:0kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 0 0 HighMem free:0kB min:128kB low:160kB high:192kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 0 0 DMA: 0*4kB 1*8kB 32*16kB 23*32kB 3*64kB 1*128kB 1*256kB 0*512kB 1*1024kB 0*2048kB 0*4096kB = 2856kB Normal: empty HighMem: empty Swap cache: add 332526, delete 218150, find 72396/87670, race 0+0 Free swap = 219592kB Total swap = 976540kB Out of Memory: Killed process 2386 (memtest). memtest: page allocation failure. order:0, mode:0xd2 Call trace: [c0007450] dump_stack+0x18/0x28 [c003fa2c] __alloc_pages+0x2a4/0x3e4 [c004ce80] do_anonymous_page+0x98/0x4c8 [c004d320] do_no_page+0x70/0x798 [c004dc9c] handle_mm_fault+0xe8/0x1d8 [c004afa0] get_user_pages+0x124/0x4c4 [c004de20] make_pages_present+0x88/0xbc [c004e4ec] mlock_fixup+0xe4/0xe8 [c004e5f0] do_mlock+0x100/0x104 [c004e6b8] sys_mlock+0xc4/0x114 [c0004290] ret_from_syscall+0x0/0x4c Thanks. [1] http://packages.debian.org/unstable/base/kernel-image-2.6.11-powerpc [2] http://packages.debian.org/stable/utils/sysutils