From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932130AbVIUTqu (ORCPT ); Wed, 21 Sep 2005 15:46:50 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932127AbVIUTqu (ORCPT ); Wed, 21 Sep 2005 15:46:50 -0400 Received: from zctfs063.nortelnetworks.com ([47.164.128.120]:41973 "EHLO zctfs063.nortelnetworks.com") by vger.kernel.org with ESMTP id S932130AbVIUTqt (ORCPT ); Wed, 21 Sep 2005 15:46:49 -0400 Message-ID: <4331B89B.3080107@nortel.com> Date: Wed, 21 Sep 2005 13:46:35 -0600 From: "Christopher Friesen" User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.6) Gecko/20040115 X-Accept-Language: en-us, en MIME-Version: 1.0 To: linux-kernel@vger.kernel.org CC: Marcelo Tosatti , "Theodore Ts'o" Subject: Re: dentry_cache using up all my zone normal memory -- also seen on 2.6.14-rc2 References: <433189B5.3030308@nortel.com> <43318FFA.4010706@nortel.com> In-Reply-To: <43318FFA.4010706@nortel.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 21 Sep 2005 19:46:43.0499 (UTC) FILETIME=[315E77B0:01C5BEE5] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Just for kicks I tried with 2.6.14-rc2, and got the same behaviour. /proc/slabinfo gives the following two high-runners within a second of the oom-killer running: dentry_cache 3894397 3894961 136 29 1 : tunables 120 60 0 : slabdata 134307 134309 0 filp 1216820 1216980 192 20 1 : tunables 120 60 0 : slabdata 60844 60849 0 The oom killer gave the following output: oom-killer: gfp_mask=0xd0, order=0 Mem-info: DMA per-cpu: cpu 0 hot: low 2, high 6, batch 1 used:2 cpu 0 cold: low 0, high 2, batch 1 used:0 Normal per-cpu: cpu 0 hot: low 62, high 186, batch 31 used:92 cpu 0 cold: low 0, high 62, batch 31 used:0 HighMem per-cpu: cpu 0 hot: low 62, high 186, batch 31 used:161 cpu 0 cold: low 0, high 62, batch 31 used:19 Free pages: 2486564kB (2479256kB HighMem) Active:2064 inactive:392 dirty:2 writeback:0 unstable:0 free:621641 slab:216703 mapped:1715 pagetables:91 DMA free:3588kB min:68kB low:84kB high:100kB active:0kB inactive:0kB present:16384kB pages_scanned:18 all_unreclaimable? yes lowmem_reserve[]: 0 880 4080 Normal free:3720kB min:3756kB low:4692kB high:5632kB active:0kB inactive:0kB present:901120kB pages_scanned:18 all_unreclaimable? yes lowmem_reserve[]: 0 0 25600 HighMem free:2479256kB min:512kB low:640kB high:768kB active:8256kB inactive:1568kB present:3276800kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 0 0 DMA: 1*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 1*512kB 1*1024kB 1*2048kB 0*4096kB = 3588kB Normal: 0*4kB 1*8kB 0*16kB 0*32kB 0*64kB 1*128kB 0*256kB 1*512kB 1*1024kB 1*2048kB 0*4096kB = 3720kB HighMem: 270*4kB 156*8kB 108*16kB 92*32kB 61*64kB 28*128kB 4*256kB 0*512kB 0*1024kB 1*2048kB 601*4096kB = 2479256kB Free swap: 0kB 1048576 pages of RAM 819200 pages of HIGHMEM 205960 reserved pages 4543 pages shared 0 pages swap cached 2 pages dirty 0 pages writeback 1715 pages mapped 216546 pages slab 91 pages pagetables Out of Memory: Killed process 444 (portmap). oom-killer: gfp_mask=0xd0, order=0 Mem-info: DMA per-cpu: cpu 0 hot: low 2, high 6, batch 1 used:2 cpu 0 cold: low 0, high 2, batch 1 used:0 Normal per-cpu: cpu 0 hot: low 62, high 186, batch 31 used:92 cpu 0 cold: low 0, high 62, batch 31 used:0 HighMem per-cpu: cpu 0 hot: low 62, high 186, batch 31 used:182 cpu 0 cold: low 0, high 62, batch 31 used:19 Free pages: 2486564kB (2479256kB HighMem) Active:2043 inactive:392 dirty:7 writeback:0 unstable:0 free:621641 slab:216707 mapped:1681 pagetables:88 DMA free:3588kB min:68kB low:84kB high:100kB active:0kB inactive:0kB present:16384kB pages_scanned:34 all_unreclaimable? yes lowmem_reserve[]: 0 880 4080 Normal free:3720kB min:3756kB low:4692kB high:5632kB active:0kB inactive:0kB present:901120kB pages_scanned:16 all_unreclaimable? yes lowmem_reserve[]: 0 0 25600 HighMem free:2479256kB min:512kB low:640kB high:768kB active:8172kB inactive:1568kB present:3276800kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 0 0 DMA: 1*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 1*512kB 1*1024kB 1*2048kB 0*4096kB = 3588kB Normal: 0*4kB 1*8kB 0*16kB 0*32kB 0*64kB 1*128kB 0*256kB 1*512kB 1*1024kB 1*2048kB 0*4096kB = 3720kB HighMem: 270*4kB 156*8kB 108*16kB 92*32kB 61*64kB 28*128kB 4*256kB 0*512kB 0*1024kB 1*2048kB 601*4096kB = 2479256kB Free swap: 0kB 1048576 pages of RAM 819200 pages of HIGHMEM 205960 reserved pages 4479 pages shared 0 pages swap cached 7 pages dirty 0 pages writeback 1681 pages mapped 216521 pages slab 88 pages pagetables Out of Memory: Killed process 803 (sshd). Chris