Messages in this thread |  | | Date | Tue, 27 Aug 2002 09:47:42 -0300 | From | Salvador Eduardo Tropea <> | Subject | Re: 2.4.19 BUG in page_alloc.c:91 |
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I can´t find a final conclusion about this topic. What I found is that it happends some hours after the kernel killed a process that was eating the memory. Example:
Aug 26 13:07:22 ice kernel: Out of Memory: Killed process 18432 (mozilla-bin). Aug 26 13:07:22 ice kernel: Out of Memory: Killed process 18443 (mozilla-bin). Aug 26 13:07:22 ice kernel: Out of Memory: Killed process 18444 (mozilla-bin). Aug 26 13:07:22 ice kernel: Out of Memory: Killed process 18445 (mozilla-bin). Aug 26 13:07:22 ice kernel: Out of Memory: Killed process 18447 (mozilla-bin). Aug 26 13:07:22 ice kernel: Out of Memory: Killed process 30410 (mozilla-bin). .... Aug 27 06:26:00 ice kernel: kernel BUG at page_alloc.c:91! Aug 27 06:26:00 ice kernel: invalid operand: 0000 Aug 27 06:26:00 ice kernel: CPU: 0 Aug 27 06:26:00 ice kernel: EIP: 0010:[__free_pages_ok+45/624] Tainted: P Aug 27 06:26:00 ice kernel: EFLAGS: 00010286 Aug 27 06:26:00 ice kernel: eax: c103a528 ebx: c1105760 ecx: c1105760 edx: c0228e9c Aug 27 06:26:00 ice kernel: esi: 00000000 edi: 00000016 ebp: 0000005e esp: c7f93f18 Aug 27 06:26:00 ice kernel: ds: 0018 es: 0018 ss: 0018 Aug 27 06:26:00 ice kernel: Process kswapd (pid: 4, stackpage=c7f93000) Aug 27 06:26:00 ice kernel: Stack: c22d28c0 c1105760 00000016 0000005e c013755c c1105760 00000 1d0 00000016 Aug 27 06:26:00 ice kernel: 0000005e c0135a09 c22d28c0 c1105760 c012d482 c012e3fb c012d 4bb 00000020 Aug 27 06:26:00 ice kernel: 000001d0 00000020 00000006 00000006 c7f92000 000003a4 00000 1d0 c0229034 Aug 27 06:26:00 ice kernel: Call Trace: [try_to_free_buffers+140/224] [try_to_release_page+ 73/80] [shrink_cache+482/768] [__free_pages+27/32] [shrink_cache+539/768] Aug 27 06:26:00 ice kernel: [shrink_caches+86/128] [try_to_free_pages+60/96] [kswapd_balance _pgdat+67/144] [kswapd_balance+22/48] [kswapd+157/192] [kernel_thread+40/64]
At 6:25 the cron started the regular locate data base update and other tasks I guess it made the kernel reduce the size of the cache and fail. I saw reports it happends with "non-tainted" kernels and with or without nVidia driver, so perhaps that´s a real bug in the mechanism used by the kernel to kill a process that is eating all the memory introduced in 2.4.19. I can fill a full bug report but perhaps any of you know about the conclusion of this thread and I´m just too stupid to find it. Note that it doesn´t happend if the kernel doesn´t kill mozilla-bin for days, when kernel kills this process is just a matter of hours before it and from this point the cache size won´t be reduced.
SET
-- Salvador Eduardo Tropea (SET). (Electronics Engineer) Visit my home page: http://welcome.to/SetSoft or http://www.geocities.com/SiliconValley/Vista/6552/ Alternative e-mail: set@computer.org set@ieee.org Address: Curapaligue 2124, Caseros, 3 de Febrero Buenos Aires, (1678), ARGENTINA Phone: +(5411) 4759 0013
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