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SubjectOOM killer, page fault
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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
[13832.210073] Pid: 11220, comm: Xorg Not tainted 2.6.32-rc5 #2
[13832.210075] Call Trace:
[13832.210081] [<ffffffff8134120a>] ? _spin_unlock+0x23/0x2f
[13832.210085] [<ffffffff8107cf46>] ? oom_kill_process+0x78/0x236
[13832.210088] [<ffffffff8107d5ba>] ? __out_of_memory+0x12f/0x146
[13832.210091] [<ffffffff8107d6be>] ? pagefault_out_of_memory+0x54/0x82
[13832.210094] [<ffffffff81341177>] ? _spin_unlock_irqrestore+0x25/0x31
[13832.210098] [<ffffffff8102644d>] ? mm_fault_error+0x39/0xe6
[13832.210101] [<ffffffff810af3ea>] ? do_vfs_ioctl+0x443/0x47b
[13832.210103] [<ffffffff81026759>] ? do_page_fault+0x25f/0x27b
[13832.210106] [<ffffffff8134161f>] ? 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
[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?

Thanks a lot and all the best

Norbert

-------------------------------------------------------------------------------
Dr. Norbert Preining Associate Professor
JAIST Japan Advanced Institute of Science and Technology preining@jaist.ac.jp
Vienna University of Technology preining@logic.at
Debian Developer (Debian TeX Task Force) preining@debian.org
gpg DSA: 0x09C5B094 fp: 14DF 2E6C 0307 BE6D AD76 A9C0 D2BF 4AA3 09C5 B094
-------------------------------------------------------------------------------
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