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Subjectpage_alloc bug in 2.4.17-pre8
Date
This machine had been up for 2-1/2 days and had run this backup (afio) twice successfully.

Here's line 108 of page_alloc.c:
if (PageLRU(page))
BUG();

Hopefully this doesn't indicate a CPU problem? The power supply on this thing blew Saturday but has run OK until now.

May 22 00:51:01 picard kernel: kernel BUG at page_alloc.c:108!
May 22 00:51:01 picard kernel: invalid operand: 0000
May 22 00:51:01 picard kernel: CPU: 1
May 22 00:51:01 picard kernel: EIP: 0010:[swap_duplicate+82/192] Not tainted
May 22 00:51:01 picard kernel: EFLAGS: 00010286
May 22 00:51:01 picard kernel: eax: 01000009 ebx: c176aed0 ecx: c176aed0 edx: cfd67690
May 22 00:51:01 picard kernel: esi: 00000000 edi: cfd67690 ebp: 000000e3 esp: ce55fef8
May 22 00:51:01 picard kernel: ds: 0018 es: 0018 ss: 0018
May 22 00:51:01 picard kernel: Process afio (pid: 15467, stackpage=ce55f000)
May 22 00:51:01 picard kernel: Stack: c176aed0 00001000 cfd67690 000000e3 00008000 f09fb2ac 00015f90 00000000
May 22 00:51:01 picard kernel: c176aed0 c176aed0 efd5ae28 cfd67690 000000e2 c0131858 c012a04d ce55ff8c
May 22 00:51:01 picard kernel: c176aed0 00000000 00001000 00000000 dd3318a0 ffffffea 00008000 00001000
May 22 00:51:01 picard kernel: Call Trace: [<f09fb2ac>] [shmem_truncate+172/524] [generic_file_write+1781/1856] [mprotect_fixup+270/
1176] [change_protection+268/348]
May 22 00:51:01 picard kernel: [create_empty_buffers+75/80] [probe_irq_on+15/292]
May 22 00:51:01 picard kernel:
May 22 00:51:01 picard kernel: Code: 0f 0b 6c 00 93 b3 24 c0 89 d8 2b 05 f0 70 30 c0 69 c0 ab aa

Michael D. Black mblack@csihq.com
http://www.csihq.com/
http://www.csihq.com/~mike
321-676-2923, x203
Melbourne FL

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