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Subject[PROBLEM] Badness in out_of_memory
Hi list, hi Mr. Mantel,

the following "badness" happened on a SuSE 9.2 with all actual updates
and SuSE's kernel 2.6.8-24.10-smp.
The system is a dual AMD Athlon MP 2200+ with 1GB memory and 1GB swap.


# uname -a
Linux urutu 2.6.8-24.10-smp #1 SMP Wed Dec 22 11:54:27 UTC 2004 i686
athlon i386 GNU/Linux

# free
total used free shared buffers cached
Mem: 1034404 683964 350440 0 30584 412916
-/+ buffers/cache: 240464 793940
Swap: 1052248 121900 930348


In /var/log/messages I found 161 times the following "badness" lines.
The system load rised up to over 100, 159 from the "badnesses" where
logged on the same second in /var/log/messages.

# grep -i badness /var/log/messages|wc -l
161
# grep -i badness /var/log/messages | head -5
Jan 6 14:42:24 urutu kernel: Badness in out_of_memory at mm/oom_kill.c:252
Jan 6 14:42:30 urutu kernel: Badness in out_of_memory at mm/oom_kill.c:252
Jan 6 14:42:31 urutu kernel: Badness in out_of_memory at mm/oom_kill.c:252
Jan 6 14:42:31 urutu kernel: Badness in out_of_memory at mm/oom_kill.c:252
Jan 6 14:42:31 urutu kernel: Badness in out_of_memory at mm/oom_kill.c:252
# grep -i badness /var/log/messages | tail -3
Jan 6 14:42:31 urutu kernel: Badness in out_of_memory at mm/oom_kill.c:252
Jan 6 14:42:31 urutu kernel: Badness in out_of_memory at mm/oom_kill.c:252
Jan 6 14:42:31 urutu kernel: Badness in out_of_memory at mm/oom_kill.c:252

Jan 6 14:42:24 urutu kernel: Badness in out_of_memory at mm/oom_kill.c:252
Jan 6 14:42:27 urutu kernel: [<c01464a9>] out_of_memory+0x39/0x130
Jan 6 14:42:27 urutu kernel: [<c014f686>] try_to_free_pages+0x196/0x1a0
Jan 6 14:42:27 urutu kernel: [<c0147800>] __alloc_pages+0x290/0x400
Jan 6 14:42:27 urutu kernel: [<f8856d7c>]
dm_table_unplug_all+0x2c/0x50 [dm_mod]
Jan 6 14:42:27 urutu kernel: [<c014a82c>]
do_page_cache_readahead+0x13c/0x180
Jan 6 14:42:27 urutu kernel: [<c0144139>] filemap_nopage+0x299/0x370
Jan 6 14:42:27 urutu kernel: [<c0153022>] do_no_page+0xd2/0x2e0
Jan 6 14:42:27 urutu kernel: [<c015348d>] handle_mm_fault+0x15d/0x1b0
Jan 6 14:42:27 urutu kernel: [<c011c403>] do_page_fault+0x1d3/0x5ee
Jan 6 14:42:27 urutu kernel: [<c01754d0>] __pollwait+0x0/0xd0
Jan 6 14:42:27 urutu kernel: [<c010f1f5>] convert_fxsr_from_user+0x15/0xf0
Jan 6 14:42:27 urutu kernel: [<c0175bfd>] sys_select+0x23d/0x4c0
Jan 6 14:42:28 urutu kernel: [<c01f6de2>] copy_to_user+0x32/0x50
Jan 6 14:42:28 urutu kernel: [<c011c230>] do_page_fault+0x0/0x5ee
Jan 6 14:42:28 urutu kernel: [<c01081bd>] error_code+0x2d/0x40
Jan 6 14:42:30 urutu kernel: x1d3/0x5ee
Jan 6 14:42:30 urutu kernel: [<c029bb78>] start_request+0x278/0x2c0
Jan 6 14:42:30 urutu kernel: [<c010f1f5>] convert_fxsr_from_user+0x15/0xf0
Jan 6 14:42:30 urutu kernel: [<c010f537>] restore_i387+0x67/0x70
Jan 6 14:42:30 urutu kernel: [<c0106404>] restore_sigcontext+0x114/0x130
Jan 6 14:42:30 urutu kernel: [<c01064e8>] sys_sigreturn+0xc8/0xe0
Jan 6 14:42:30 urutu kernel: [<c011c230>] do_page_fault+0x0/0x5ee
Jan 6 14:42:30 urutu kernel: [<c01081bd>] error_code+0x2d/0x40



The process killed were:
# grep Killed /var/log/messages
Jan 6 14:42:31 urutu kernel: Out of Memory: Killed process 26123 (java_vm).
Jan 6 14:42:31 urutu kernel: Out of Memory: Killed process 26126 (java_vm).
Jan 6 14:42:31 urutu kernel: Out of Memory: Killed process 26120 (java_vm).
Jan 6 14:42:31 urutu kernel: Out of Memory: Killed process 9730
(mozilla-bin).
Jan 6 14:42:31 urutu kernel: Out of Memory: Killed process 9732
(mozilla-bin).
Jan 6 14:42:31 urutu kernel: Out of Memory: Killed process 9739
(mozilla-bin).


Any idea what's happening here? Do you need more info?

Thanks, Richard

--
Richard Ems
Tel: +49 40 65803 312
Fax: +49 40 65803 392
Richard.Ems@mtg-marinetechnik.de

MTG Marinetechnik GmbH - Wandsbeker Königstr. 62 - D 22041 Hamburg

GF Dipl.-Ing. Ullrich Keil
Handelsregister: Abt. B Nr. 11 500 - Amtsgericht Hamburg Abt. 66
USt.-IdNr.: DE 1186 70571

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