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Subject2.4.10 BUG()
Hi,

Just came back to work today morning and ofund following:
Sep 25 01:06:12 enenon kernel: kernel BUG at page_alloc.c:76!
Sep 25 01:06:12 enenon kernel: invalid operand: 0000
Sep 25 01:06:12 enenon kernel: CPU: 0
Sep 25 01:06:12 enenon kernel: EIP: 0010:[__free_pages_ok+52/688]
Sep 25 01:06:12 enenon kernel: EFLAGS: 00010282
Sep 25 01:06:12 enenon kernel: eax: 0000001f ebx: c12ac640 ecx:
c021305c edx: 00001208
Sep 25 01:06:12 enenon kernel: esi: c12ac640 edi: 00000015 ebp:
00000000 esp: c13e5f2c
Sep 25 01:06:12 enenon kernel: ds: 0018 es: 0018 ss: 0018
Sep 25 01:06:12 enenon kernel: Process kswapd (pid: 5, stackpage=c13e5000)
Sep 25 01:06:12 enenon kernel: Stack: c01e4893 0000004c c02141c8 c12ac640
00000015 0000077a c12ac640 00000015
Sep 25 01:06:12 enenon kernel: 0000077a 00000001 c0128c17 c0129f87
c0128c91 00000020 000001d0 00000006
Sep 25 01:06:12 enenon kernel: 00000786 c13e4000 c02141c8 c0128fec
000001d0 00000006 000001d0 c02141c8
Sep 25 01:06:12 enenon kernel: Call Trace: [shrink_cache+363/864]
[__free_pages+27/28] [shrink_cache+485/864] [shrink_caches+84/128]
[try_to_free_pages+28/76]
Sep 25 01:06:12 enenon kernel: [kswapd_balance_pgdat+67/140]
[kswapd_balance+18/40] [kswapd+153/188] [kernel_thread+40/56]
Sep 25 01:06:12 enenon kernel:
Sep 25 01:06:12 enenon kernel: Code: 0f 0b 83 c4 08 8d b4 26 00 00 00 00
89 d8 2b 05 0c cf 26 c0

The machine was idle at night, but ad 1:01 cron.daily was scheduled with
following jobs:
datesync
logrotate
makewhatis.cron
slocate.cron

Swap in not used:
[root@enenon root]# free
total used free shared buffers cached
Mem: 191716 178180 13536 0 4760 67480
-/+ buffers/cache: 105940 85776
Swap: 104384 0 104384


Hope it helps,
pkot
--
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