Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753885AbZKBEYN (ORCPT ); Sun, 1 Nov 2009 23:24:13 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753779AbZKBEYN (ORCPT ); Sun, 1 Nov 2009 23:24:13 -0500 Received: from fgwmail6.fujitsu.co.jp ([192.51.44.36]:44061 "EHLO fgwmail6.fujitsu.co.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753768AbZKBEYM (ORCPT ); Sun, 1 Nov 2009 23:24:12 -0500 X-SecurityPolicyCheck-FJ: OK by FujitsuOutboundMailChecker v1.3.1 From: KOSAKI Motohiro To: Norbert Preining Subject: Re: OOM killer, page fault Cc: kosaki.motohiro@jp.fujitsu.com, linux-kernel@vger.kernel.org, linux-mm In-Reply-To: <20091030063216.GA30712@gamma.logic.tuwien.ac.at> References: <20091030063216.GA30712@gamma.logic.tuwien.ac.at> Message-Id: <20091102005218.8352.A69D9226@jp.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Mailer: Becky! ver. 2.50.07 [ja] Date: Mon, 2 Nov 2009 13:24:06 +0900 (JST) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4908 Lines: 91 Hi, (Cc to linux-mm) Wow, this is very strange log. > Dear all, > > (please Cc) > > With 2.6.32-rc5 I got that one: > [13832.210068] Xorg invoked oom-killer: gfp_mask=0x0, order=0, oom_adj=0 order = 0 > [13832.210073] Pid: 11220, comm: Xorg Not tainted 2.6.32-rc5 #2 > [13832.210075] Call Trace: > [13832.210081] [] ? _spin_unlock+0x23/0x2f > [13832.210085] [] ? oom_kill_process+0x78/0x236 > [13832.210088] [] ? __out_of_memory+0x12f/0x146 > [13832.210091] [] ? pagefault_out_of_memory+0x54/0x82 > [13832.210094] [] ? _spin_unlock_irqrestore+0x25/0x31 > [13832.210098] [] ? mm_fault_error+0x39/0xe6 > [13832.210101] [] ? do_vfs_ioctl+0x443/0x47b > [13832.210103] [] ? do_page_fault+0x25f/0x27b > [13832.210106] [] ? page_fault+0x1f/0x30 > [13832.210108] Mem-Info: > [13832.210109] DMA per-cpu: > [13832.210111] CPU 0: hi: 0, btch: 1 usd: 0 > [13832.210113] CPU 1: hi: 0, btch: 1 usd: 0 > [13832.210114] DMA32 per-cpu: > [13832.210116] CPU 0: hi: 186, btch: 31 usd: 165 > [13832.210117] CPU 1: hi: 186, btch: 31 usd: 177 > [13832.210119] Normal per-cpu: > [13832.210120] CPU 0: hi: 186, btch: 31 usd: 143 > [13832.210122] CPU 1: hi: 186, btch: 31 usd: 159 > [13832.210128] active_anon:465239 inactive_anon:178856 isolated_anon:96 > [13832.210129] active_file:120044 inactive_file:120889 isolated_file:34 but the system has plenty droppable cache. Umm, Is this reproducable? Typically such strange log was caused by corruptted ram. can you please check your memory correctness? > [13832.210130] unevictable:32076 dirty:136955 writeback:1178 unstable:0 buffer:32965 > [13832.210131] free:6932 slab_reclaimable:23740 slab_unreclaimable:11776 > [13832.210132] mapped:41869 shmem:127673 pagetables:7320 bounce:0 > [13832.210138] DMA free:15784kB min:28kB low:32kB high:40kB active_anon:0kB inactive_anon:0kB active_file:24kB inactive_file:132kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15364kB mlocked:0kB dirty:60kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:16kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no > [13832.210142] lowmem_reserve[]: 0 2931 3941 3941 > [13832.210150] DMA32 free:9928kB min:5960kB low:7448kB high:8940kB active_anon:1527548kB inactive_anon:382016kB active_file:345724kB inactive_file:348528kB unevictable:127864kB isolated(anon):256kB isolated(file):0kB present:3001852kB mlocked:127864kB dirty:389520kB writeback:3192kB mapped:119544kB shmem:301556kB slab_reclaimable:62476kB slab_unreclaimable:22472kB kernel_stack:320kB pagetables:6692kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:448 all_unreclaimable? no > [13832.210155] lowmem_reserve[]: 0 0 1010 1010 > [13832.210161] Normal free:2016kB min:2052kB low:2564kB high:3076kB active_anon:333408kB inactive_anon:333408kB active_file:134428kB inactive_file:134896kB unevictable:440kB isolated(anon):128kB isolated(file):136kB present:1034240kB mlocked:440kB dirty:158240kB writeback:1520kB mapped:47932kB shmem:209136kB slab_reclaimable:32468kB slab_unreclaimable:24632kB kernel_stack:2072kB pagetables:22588kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:192 all_unreclaimable? no > [13832.210166] lowmem_reserve[]: 0 0 0 0 > [13832.210169] DMA: 2*4kB 2*8kB 1*16kB 2*32kB 1*64kB 2*128kB 2*256kB 1*512kB 2*1024kB 2*2048kB 2*4096kB = 15784kB > [13832.210177] DMA32: 624*4kB 1*8kB 11*16kB 6*32kB 1*64kB 8*128kB 5*256kB 1*512kB 0*1024kB 0*2048kB 1*4096kB = 9848kB > [13832.210184] Normal: 504*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 2016kB > [13832.210191] 374966 total pagecache pages > [13832.210192] 6328 pages in swap cache > [13832.210194] Swap cache stats: add 147686, delete 141358, find 119392/120966 > [13832.210195] Free swap = 8661548kB > [13832.210197] Total swap = 8851804kB > [13832.225488] 1048576 pages RAM > [13832.225491] 73094 pages reserved > [13832.225492] 695291 pages shared > [13832.225493] 352255 pages non-shared > [13832.225496] Out of memory: kill process 11292 (gnome-session) score 500953 or a child > [13832.225498] Killed process 11569 (xscreensaver) > > > After that I managed to get my system runing normally on, restarting X, > all runs since then quite fine. > > Is that something I should be nervous about? This obviously indicate kernel-bug or hw-corrupt. I'm not sure which happen ;) > Thanks a lot and all the best > > Norbert -- 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/