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[BUG] 2.6.23-rc3-mm1 kernel BUG at mm/page_alloc.c:2876!

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From: Kamalesh Babulal <kamalesh@...>
To: Andrew Morton <akpm@...>
Cc: <linux-kernel@...>, Balbir Singh <balbir@...>
Subject: [BUG] 2.6.23-rc3-mm1 kernel BUG at mm/page_alloc.c:2876!
Date: Wednesday, August 22, 2007 - 4:20 pm

Hi Andrew,

I see call trace followed by the kernel bug with the 2.6.23-rc3-mm1
kernel and have attached the boot log and config file.

=======================================================
SLUB: Genslabs=12, HWalign=128, Order=0-1, MinObjects=4, CPUs=4, Nodes=16

Bad page state in process 'swapper'

page:cf00000000015818 flags:0x0000020000000400 mapping:0000000000000000 
mapcount:0 count:0

Trying to fix it up, but a reboot is needed

Backtrace:

Call Trace:

[c0000000005cbab0] [c000000000010344] .show_stack+0x68/0x1b4 (unreliable)

[c0000000005cbb60] [c0000000000a6c54] .bad_page+0x84/0x138

[c0000000005cbbf0] [c0000000000aa9e0] .free_hot_cold_page+0xdc/0x21c

[c0000000005cbc90] [c0000000000ad7ec] .put_page+0x158/0x180

[c0000000005cbd30] [c0000000000d4de8] .kfree+0x74/0xf0

[c0000000005cbdb0] [c0000000000a866c] .process_zones+0x1a8/0x1f8

[c0000000005cbe60] [c0000000004b5160] .setup_per_cpu_pageset+0x24/0x48

[c0000000005cbee0] [c0000000004978d8] .start_kernel+0x304/0x3f4

[c0000000005cbf90] [c0000000003bef10] .start_here_common+0x54/0x58

Hexdump:

000: cf 00 00 00 00 01 57 d0 00 00 02 00 00 00 04 00

010: 00 00 00 01 ff ff ff ff 00 00 00 00 00 00 00 00

020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

030: cf 00 00 00 00 01 58 08 cf 00 00 00 00 01 58 08

040: 00 00 02 00 00 00 04 00 00 00 00 00 ff ff ff ff

050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

060: 00 00 00 00 00 00 00 00 cf 00 00 00 00 01 58 40

070: cf 00 00 00 00 01 58 40 00 00 02 00 00 00 04 00

080: 00 00 00 01 ff ff ff ff 00 00 00 00 00 00 00 00

090: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

0a0: cf 00 00 00 00 01 58 78 cf 00 00 00 00 01 58 78

0b0: 00 00 02 00 00 00 04 00 00 00 00 01 ff ff ff ff

------------[ cut here ]------------

kernel BUG at mm/page_alloc.c:2876!

cpu 0x0: Vector: 700 (Program Check) at [c0000000005cbbe0]

    pc: c0000000004b5160: .setup_per_cpu_pageset+0x24/0x48

    lr: c0000000004b5160: .setup_per_cpu_pageset+0x24/0x48

    sp: c0000000005cbe60

   msr: 8000000000029032

  current = 0xc0000000004fd1b0

  paca    = 0xc0000000004fdd80

    pid   = 0, comm = swapper

kernel BUG at mm/page_alloc.c:2876!

enter ? for help

Thanks & Regards,
Kamalesh Babulal.
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Messages in current thread:
[BUG] 2.6.23-rc3-mm1 kernel BUG at mm/page_alloc.c:2876!, Kamalesh Babulal, (Wed Aug 22, 4:20 pm)
Re: [BUG] 2.6.23-rc3-mm1 kernel BUG at mm/page_alloc.c:2876!, Mel Gorman, (Thu Aug 23, 10:49 am)
Re: [BUG] 2.6.23-rc3-mm1 kernel BUG at mm/page_alloc.c:2876!, Andrew Morton, (Wed Aug 22, 4:48 pm)
Re: [BUG] 2.6.23-rc3-mm1 kernel BUG at mm/page_alloc.c:2876!, Christoph Lameter, (Wed Aug 22, 5:09 pm)
Re: [BUG] 2.6.23-rc3-mm1 kernel BUG at mm/page_alloc.c:2876!, Andrew Morton, (Wed Aug 22, 4:50 pm)
Re: [BUG] 2.6.23-rc3-mm1 kernel BUG at mm/page_alloc.c:2876!, Mel Gorman, (Thu Aug 23, 9:07 am)
Re: [BUG] 2.6.23-rc3-mm1 kernel BUG at mm/page_alloc.c:2876!, Kamalesh Babulal, (Thu Aug 23, 1:17 pm)
Re: [BUG] 2.6.23-rc3-mm1 kernel BUG at mm/page_alloc.c:2876!, Christoph Lameter, (Thu Aug 23, 4:05 pm)
Re: [BUG] 2.6.23-rc3-mm1 kernel BUG at mm/page_alloc.c:2876!, Kamalesh Babulal, (Fri Aug 24, 2:15 am)
Re: [BUG] 2.6.23-rc3-mm1 kernel BUG at mm/page_alloc.c:2876!, Christoph Lameter, (Fri Aug 24, 12:54 pm)
Re: [BUG] 2.6.23-rc3-mm1 kernel BUG at mm/page_alloc.c:2876!, Mel Gorman, (Fri Aug 24, 4:58 am)