The oom-killer seems to kick in way too early. Noticed recently that large file copy operations start to slow down the system dramatically and some applications disappear during that time. Found that in the syslog. I assume that the oom-killer functionality is not correct and/or the kernel deals with file copy operations and caching incorrectly causing OOM conditions.
Running Ubuntu 9.10 with 2.6.32-03 Linux linpicard 2.6.32-02063203-generic #02063203 SMP Thu Jan 7 10:09:47 UTC 2010 x86_64 GNU/Linux /var/log/syslog -------------------- Mar 9 15:22:14 linpicard kernel: [645524.599721] Xorg invoked oom-killer: gfp_mask=0x0, order=0, oom_adj=0 Mar 9 15:22:14 linpicard kernel: [645524.599726] Xorg cpuset=/ mems_allowed=0 Mar 9 15:22:14 linpicard kernel: [645524.599729] Pid: 28169, comm: Xorg Tainted: G W 2.6.32-02063203-generic #02063203 Mar 9 15:22:14 linpicard kernel: [645524.599731] Call Trace: Mar 9 15:22:14 linpicard kernel: [645524.599738] [<ffffffff810abab9>] ? cpuset_print_task_mems_allowed+0x99/0xa0 Mar 9 15:22:14 linpicard kernel: [645524.599742] [<ffffffff810e7bf1>] oom_kill_process+0x141/0x170 Mar 9 15:22:14 linpicard kernel: [645524.599745] [<ffffffff810e8090>] __out_of_memory+0x50/0xa0 Mar 9 15:22:14 linpicard kernel: [645524.599747] [<ffffffff810e84b1>] pagefault_out_of_memory+0x61/0xa0 Mar 9 15:22:14 linpicard kernel: [645524.599750] [<ffffffff8103e122>] out_of_memory+0x22/0x30 Mar 9 15:22:14 linpicard kernel: [645524.599753] [<ffffffff8103e3a7>] mm_fault_error+0x17/0x30 Mar 9 15:22:14 linpicard kernel: [645524.599757] [<ffffffff815364e8>] do_page_fault+0x348/0x350 Mar 9 15:22:14 linpicard kernel: [645524.599759] [<ffffffff81533d35>] page_fault+0x25/0x30 Mar 9 15:22:14 linpicard kernel: [645524.599761] Mem-Info: Mar 9 15:22:14 linpicard kernel: [645524.599762] Node 0 DMA per-cpu: Mar 9 15:22:14 linpicard kernel: [645524.599764] CPU 0: hi: 0, btch: 1 usd: 0 Mar 9 15:22:14 linpicard kernel: [645524.599766] CPU 1: hi: 0, btch: 1 usd: 0 Mar 9 15:22:14 linpicard kernel: [645524.599767] Node 0 DMA32 per-cpu: Mar 9 15:22:14 linpicard kernel: [645524.599769] CPU 0: hi: 186, btch: 31 usd: 150 Mar 9 15:22:14 linpicard kernel: [645524.599771] CPU 1: hi: 186, btch: 31 usd: 182 Mar 9 15:22:14 linpicard kernel: [645524.599772] Node 0 Normal per-cpu: Mar 9 15:22:14 linpicard kernel: [645524.599774] CPU 0: hi: 186, btch: 31 usd: 169 Mar 9 15:22:14 linpicard kernel: [645524.599776] CPU 1: hi: 186, btch: 31 usd: 190 Mar 9 15:22:14 linpicard kernel: [645524.599779] active_anon:77195 inactive_anon:447273 isolated_anon:14 Mar 9 15:22:14 linpicard kernel: [645524.599780] active_file:57249 inactive_file:293833 isolated_file:46 Mar 9 15:22:14 linpicard kernel: [645524.599781] unevictable:1321 dirty:47 writeback:147 unstable:0 Mar 9 15:22:14 linpicard kernel: [645524.599782] free:6831 slab_reclaimable:20830 slab_unreclaimable:42144 Mar 9 15:22:14 linpicard kernel: [645524.599783] mapped:18296 shmem:88407 pagetables:9945 bounce:0 Mar 9 15:22:14 linpicard kernel: [645524.599784] Node 0 DMA free:15648kB min:28kB low:32kB high:40kB active_anon:16kB inactive_anon:40kB active_file:32kB inactive_file:32kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15304kB mlocked:0kB dirty:0kB writeback:0kB mapped:20kB shmem:20kB slab_reclaimable:48kB slab_unreclaimable:80kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no Mar 9 15:22:14 linpicard kernel: [645524.599792] lowmem_reserve[]: 0 2958 3905 3905 Mar 9 15:22:14 linpicard kernel: [645524.599795] Node 0 DMA32 free:9800kB min:6044kB low:7552kB high:9064kB active_anon:223780kB inactive_anon:1563144kB active_file:169916kB inactive_file:750696kB unevictable:876kB isolated(anon):0kB isolated(file):0kB present:3029636kB mlocked:876kB dirty:96kB writeback:0kB mapped:35820kB shmem:245520kB slab_reclaimable:67684kB slab_unreclaimable:124100kB kernel_stack:2408kB pagetables:22504kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:64 all_unreclaimable? no Mar 9 15:22:14 linpicard kernel: [645524.599803] lowmem_reserve[]: 0 0 946 946 Mar 9 15:22:14 linpicard kernel: [645524.599806] Node 0 Normal free:1876kB min:1932kB low:2412kB high:2896kB active_anon:84984kB inactive_anon:225908kB active_file:59048kB inactive_file:424604kB unevictable:4408kB isolated(anon):56kB isolated(file):184kB present:969600kB mlocked:4408kB dirty:92kB writeback:588kB mapped:37344kB shmem:108088kB slab_reclaimable:15588kB slab_unreclaimable:44396kB kernel_stack:2064kB pagetables:17276kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:64 all_unreclaimable? no Mar 9 15:22:14 linpicard kernel: [645524.599814] lowmem_reserve[]: 0 0 0 0 Mar 9 15:22:14 linpicard kernel: [645524.599816] Node 0 DMA: 4*4kB 4*8kB 3*16kB 2*32kB 4*64kB 1*128kB 3*256kB 2*512kB 3*1024kB 3*2048kB 1*4096kB = 15648kB Mar 9 15:22:14 linpicard kernel: [645524.599824] Node 0 DMA32: 160*4kB 261*8kB 404*16kB 1*32kB 1*64kB 0*128kB 2*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 9800kB Mar 9 15:22:14 linpicard kernel: [645524.599832] Node 0 Normal: 469*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 1876kB Mar 9 15:22:14 linpicard kernel: [645524.599839] 748645 total pagecache pages Mar 9 15:22:14 linpicard kernel: [645524.599840] 308466 pages in swap cache Mar 9 15:22:14 linpicard kernel: [645524.599841] Swap cache stats: add 6796476, delete 6488010, find 3607693/4203711 Mar 9 15:22:14 linpicard kernel: [645524.599843] Free swap = 5801988kB Mar 9 15:22:14 linpicard kernel: [645524.599844] Total swap = 8000328kB Mar 9 15:22:14 linpicard kernel: [645524.613076] 1032192 pages RAM Mar 9 15:22:14 linpicard kernel: [645524.613078] 44189 pages reserved Mar 9 15:22:14 linpicard kernel: [645524.613079] 179866 pages shared Mar 9 15:22:14 linpicard kernel: [645524.613080] 837571 pages non-shared Mar 9 15:22:14 linpicard kernel: [645524.613083] Out of memory: kill process 21603 (AptanaStudio) score 9285701 or a child Mar 9 15:22:14 linpicard kernel: [645524.613087] Killed process 21616 (java) Mar 9 15:22:29 linpicard wpa_supplicant[1447]: CTRL-EVENT-SCAN-RESULTS -- (Apparently) spurious, intermittent OOM killer intervention https://bugs.launchpad.net/bugs/330806 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
