Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932084AbVJCAVE (ORCPT ); Sun, 2 Oct 2005 20:21:04 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932087AbVJCAVE (ORCPT ); Sun, 2 Oct 2005 20:21:04 -0400 Received: from amun.rz.tu-clausthal.de ([139.174.2.12]:2010 "EHLO amun.rz.tu-clausthal.de") by vger.kernel.org with ESMTP id S932084AbVJCAVD convert rfc822-to-8bit (ORCPT ); Sun, 2 Oct 2005 20:21:03 -0400 From: "Hemmann, Volker Armin" To: linux-kernel@vger.kernel.org Subject: please explain luser (me) oom-killer with free swap Date: Mon, 3 Oct 2005 02:20:43 +0200 User-Agent: KMail/1.8.2 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-15" Content-Transfer-Encoding: 8BIT Content-Disposition: inline Message-Id: <200510030220.44540.volker.armin.hemmann@tu-clausthal.de> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2864 Lines: 71 Hi, I have an AMD64 box with 1gb of ram and approximatly 1gb of swap. Distribution is gentoo, but the kernels are stock kernel.org kernels. My problem: when I try to emerge kdepim-3.4.2 with the 'kdeenablefinal' useflag (which makes the whole thing extra memory hungry), I get a lot of oom-kills. Usually it kills kwin, which is a little bit annyoing, but not always, as you can see below. But always, there is still a lot of free swap: [15204.500025] oom-killer: gfp_mask=0x480d2, order=0 [15204.500030] Mem-info: [15204.500032] DMA per-cpu: [15204.500034] cpu 0 hot: low 2, high 6, batch 1 used:4 [15204.500036] cpu 0 cold: low 0, high 2, batch 1 used:1 [15204.500038] Normal per-cpu: [15204.500041] cpu 0 hot: low 62, high 186, batch 31 used:84 [15204.500043] cpu 0 cold: low 0, high 62, batch 31 used:44 [15204.500045] HighMem per-cpu: empty [15204.500048] Free pages: 9092kB (0kB HighMem) [15204.500052] Active:240481 inactive:1223 dirty:0 writeback:0 unstable:0 free:2273 slab:7287 mapped:240616 pagetables:1389 [15204.500056] DMA free:4088kB min:60kB low:72kB high:88kB active:8440kB inactive:0kB present:15996kB pages_scanned:8931 all_unreclaimable? yes [15204.500059] lowmem_reserve[]: 0 1007 1007 [15204.500064] Normal free:5004kB min:4028kB low:5032kB high:6040kB active:953484kB inactive:4892kB present:1031872kB pages_scanned:66 all_unreclaimable? no [15204.500067] lowmem_reserve[]: 0 0 0 [15204.500071] HighMem free:0kB min:128kB low:160kB high:192kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no [15204.500073] lowmem_reserve[]: 0 0 0 [15204.500075] DMA: 0*4kB 1*8kB 1*16kB 1*32kB 1*64kB 1*128kB 1*256kB 1*512kB 1*1024kB 1*2048kB 0*4096kB = 4088kB [15204.500082] Normal: 123*4kB 44*8kB 8*16kB 2*32kB 0*64kB 1*128kB 1*256kB 1*512kB 1*1024kB 1*2048kB 0*4096kB = 5004kB [15204.500089] HighMem: empty [15204.500092] Swap cache: add 314, delete 247, find 0/0, race 0+0 [15204.500094] Free swap = 994764kB [15204.500095] Total swap = 996020kB [15204.500097] Free swap: 994764kB [15204.505231] 262064 pages of RAM [15204.505234] 5453 reserved pages [15204.505236] 78099 pages shared [15204.505237] 67 pages swap cached [15204.505280] Out of Memory: Killed process 30010 (wesnoth). this was with kernel 2.6.14-rc3, with 2.6.14-rc2 it does not look much different. Or 2.6.13-gentoo-rX. Luckily this time it killed wesnoth ;) Would you please be so kind and explain me in not too heavy words, why the oom-killer was activated? oh, and if you need/want more informations, please just say so. Gl?ck Auf Volker ps. (it would be special kind to cc me) - 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/