Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751098AbWC1Bxv (ORCPT ); Mon, 27 Mar 2006 20:53:51 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751208AbWC1Bxv (ORCPT ); Mon, 27 Mar 2006 20:53:51 -0500 Received: from mustang.oldcity.dca.net ([216.158.38.3]:60548 "HELO mustang.oldcity.dca.net") by vger.kernel.org with SMTP id S1751098AbWC1Bxu (ORCPT ); Mon, 27 Mar 2006 20:53:50 -0500 Subject: OOM kills if swappiness set to 0, swap storms otherwise From: Lee Revell To: linux-kernel Content-Type: text/plain Date: Mon, 27 Mar 2006 20:53:47 -0500 Message-Id: <1143510828.1792.353.camel@mindpipe> Mime-Version: 1.0 X-Mailer: Evolution 2.6.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 6015 Lines: 104 I am simply trying to run a Gnome desktop (Gnome 2.14, Evolution, Firefox, gtk-gnutella usually open) without swapping or getting OOM killed. I have to set the swappiness to 0 or else I get swap storms when simply browsing the web and reading my mail. I think this is insane as I have 512MB of RAM. It seems as if the kernel will OOM kill firefox rather than shrink the file cache! What is the problem here? Is the modern Linux desktop really too bloated to run in half a gig of RAM, or is the kernel overzealous with its OOM killing? Lee oom-killer: gfp_mask=0x280d2, order=0 Mem-info: DMA per-cpu: cpu 0 hot: high 0, batch 1 used:0 cpu 0 cold: high 0, batch 1 used:0 DMA32 per-cpu: empty Normal per-cpu: cpu 0 hot: high 186, batch 31 used:23 cpu 0 cold: high 62, batch 15 used:46 HighMem per-cpu: empty Free pages: 4476kB (0kB HighMem) Active:84715 inactive:9418 dirty:0 writeback:0 unstable:0 free:1119 slab:4615 mapped:93948 pagetables:662 DMA free:1252kB min:96kB low:120kB high:144kB active:0kB inactive:0kB present:16384kB pages_scanned:10238 all_unreclaimable? yes lowmem_reserve[]: 0 0 431 431 DMA32 free:0kB min:0kB low:0kB high:0kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 0 431 431 Normal free:3224kB min:2608kB low:3260kB high:3912kB active:338860kB inactive:37672kB present:442304kB pages_scanned:61895 all_unreclaim able? no lowmem_reserve[]: 0 0 0 0 HighMem free:0kB min:128kB low:128kB high:128kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 0 0 0 DMA: 3*4kB 3*8kB 2*16kB 1*32kB 2*64kB 2*128kB 1*256kB 1*512kB 0*1024kB 0*2048kB 0*4096kB = 1252kB DMA32: empty Normal: 174*4kB 28*8kB 0*16kB 2*32kB 1*64kB 1*128kB 0*256kB 0*512kB 0*1024kB 1*2048kB 0*4096kB = 3224kB HighMem: empty Swap cache: add 635780, delete 617326, find 164667/241301, race 0+0 Free swap = 315164kB Total swap = 499928kB Free swap: 315164kB 114672 pages of RAM 0 pages of HIGHMEM 5150 reserved pages 41086 pages shared 18438 pages swap cached 0 pages dirty 0 pages writeback 93765 pages mapped 4615 pages slab 662 pages pagetables Out of Memory: Killed process 32663 (firefox-bin). rlrevell@mindpipe:~$ vmstat 1 procs -----------memory---------- ---swap-- -----io---- --system-- ----cpu---- r b swpd free buff cache si so bi bo in cs us sy id wa 2 0 248992 5612 4072 75268 3 2 41 49 12 33 82 4 14 1 0 0 248992 5364 4084 75300 0 0 0 128 1273 640 34 3 63 0 0 0 248992 5356 4084 75464 0 0 0 0 1257 611 23 4 73 0 0 0 248992 5356 4084 75496 0 0 0 0 1292 635 21 2 77 0 0 0 248992 5356 4084 75532 0 0 0 0 1277 599 22 3 75 0 0 0 248992 5356 4084 75532 0 0 0 0 1270 610 23 2 75 0 1 0 248992 5232 4092 75564 0 0 0 200 1274 596 21 2 77 0 0 0 248992 5232 4092 75564 0 0 0 0 1280 648 22 2 76 0 0 0 248992 5108 4092 75696 0 0 0 0 1296 621 21 4 75 0 USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND rlrevell 1792 4.1 37.9 320340 166724 ? Sl Mar21 353:33 evolution --component=mail rlrevell 2298 9.2 18.9 200556 83112 ? Sl 15:16 30:55 /usr/lib/firefox/firefox-bin -a firefox rlrevell 1794 0.0 2.1 92704 9344 ? Sl Mar21 0:47 /usr/lib/evolution/evolution-data-server-1.6 --oaf-activate-iid=OAFIID:GNOME_Evolution_DataServer_InterfaceCheck --oaf-ior-fd=41 pdnsd 10545 0.0 0.1 75676 600 ? Sl 18:55 0:00 /usr/sbin/pdnsd --daemon -p /var/run/pdnsd.pid rlrevell 1805 0.0 0.6 65236 2740 ? Sl Mar21 0:06 /usr/lib/evolution/2.6/evolution-alarm-notify --oaf-activate-iid=OAFIID:GNOME_Evolution_Calendar_AlarmNotify_Factory:2.6 --oaf-ior-fd=43 root 2295 70.3 4.5 58160 19908 tty7 Ss+ Mar18 9207:34 /usr/bin/X :0 -br -audit 0 -auth /var/lib/gdm/:0.Xauth -nolisten tcp vt7 rlrevell 2759 0.0 1.0 57716 4832 ? Ssl Mar18 2:48 nautilus --sm-config-prefix /nautilus-kFkhxG/ --sm-client-id 106281f446000113283283500000043730002 --screen 0 --no-default-window rlrevell 2749 0.0 0.5 33720 2404 ? Sl Mar18 3:09 /usr/lib/control-center/gnome-settings-daemon --oaf-activate-iid=OAFIID:GNOME_SettingsDaemon --oaf-ior-fd=25 rlrevell 11452 17.2 3.9 31828 17348 ? S 20:15 5:49 gtk-gnutella rlrevell 2934 0.1 1.7 28736 7548 ? Sl Mar18 20:09 /usr/lib/gnome-panel/wnck-applet --oaf-activate-iid=OAFIID:GNOME_Wncklet_Factory --oaf-ior-fd=33 rlrevell 11751 0.0 0.1 27180 524 pts/0 S+ 20:49 0:00 sort -k5 -rn rlrevell 2757 0.0 1.8 24220 8148 ? Ssl Mar18 5:54 gnome-panel --sm-config-prefix /gnome-panel-daqxPK/ --sm-client-id 106281f446000113283283400000043730001 --screen 0 rlrevell 2785 0.0 0.7 20784 3400 ? S Mar18 1:10 /usr/lib/gnome-panel/clock-applet --oaf-activate-iid=OAFIID:GNOME_ClockApplet_Factory --oaf-ior-fd=35 rlrevell 2669 0.0 0.6 17212 2704 ? Ss Mar18 0:22 x-session-manager rlrevell 2783 0.0 0.5 15288 2328 ? S Mar18 0:17 /usr/lib/gnome-panel/notification-area-applet --oaf-activate-iid=OAFIID:GNOME_NotificationAreaApplet_Factory --oaf-ior-fd=34 rlrevell 11453 0.0 0.1 14088 480 ? S 20:15 0:00 DNS helper for gtk-gnutella rlrevell 2860 0.0 0.5 13732 2512 ? Ss Mar18 2:29 gnome-screensaver rlrevell 2755 0.1 1.1 13484 5216 ? Ss Mar18 13:17 metacity --sm-save-file 1132974963-4486-1014928945.ms root 2291 0.0 0.0 10148 388 ? S Mar18 0:04 /usr/sbin/gdm root 2286 0.0 0.0 9668 256 ? Ss Mar18 0:00 /usr/sbin/gdm - 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/