linux-kernel - PROBLEM: kernel BUG at mm/page

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Date:	Sat, 9 Jan 2010 22:32:10 +0100
From:	Michail Bachmann <mb@...raldcity.de>
To:	linux-mm@...ck.org
Cc:	linux-kernel@...r.kernel.org
Subject: PROBLEM: kernel BUG at mm/page_alloc.c:775

Hi,

When starting the system with a kernel version of 2.6.31 or later (I tested it 
from 2.6.31.1 up to 2.6.33-rc3) after a while the kernel will panic with the 
following message (from2.6.32.2) :

[   48.505381] kernel BUG at mm/page_alloc.c:775!
[   48.505467] invalid opcode: 0000 [#1] 
[   48.505589] last sysfs file: 
[   48.505672] Modules linked in:
[   48.505788] 
[   48.505870] Pid: 343, comm: fsck.ext3 Not tainted (2.6.32.2-200912310108 
#1) System Name
[   48.505994] EIP: 0060:[<c01641c6>] EFLAGS: 00010093 CPU: 0
[   48.506094] EIP is at move_freepages_block+0x86/0x130
[   48.506178] EAX: 000002fc EBX: 00000040 ECX: 00000000 EDX: 00000001
[   48.506264] ESI: 000041ed EDI: c1368000 EBP: e7267c70 ESP: e7267c50
[   48.506350]  DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068
[   48.506438] Process fsck.ext3 (pid: 343, ti=e7266000 task=e7b78720 
task.ti=e7266000)
[   48.506558] Stack:
[   48.506634]  00000000 00000000 c042595c c136ffe0 e7267c78 c1368018 00000002 
000001b8
[   48.506974] <0> e7267cc0 c0164751 00000000 c03fd58c 00000001 
c0361780e7267ca8 00000206
[   48.507379] <0> 00000000 00000000 c042595c c1368000 00011210 
c0425b50c0425b50 c0425998
[   48.507855] Call Trace:
[   48.507938]  [<c0164751>] ? __rmqueue+0x1a1/0x350
[   48.508027]  [<c016636b>] ? get_page_from_freelist+0x35b/0x420
[   48.508115]  [<c01664f8>] ? __alloc_pages_nodemask+0xc8/0x510
[   48.508215]  [<c011db73>] ? dequeue_task+0x63/0xb0
[   48.508304]  [<c0167ea8>] ? __do_page_cache_readahead+0xb8/0x1b0
[   48.508396]  [<c0167fc8>] ? ra_submit+0x28/0x30
[   48.508480]  [<c01681cd>] ? ondemand_readahead+0xfd/0x1e0
[   48.508567]  [<c0168320>] ? page_cache_async_readahead+0x70/0x90
[   48.508653]  [<c0162c8c>] ? generic_file_aio_read+0x2fc/0x620
[   48.508741]  [<c018b101>] ? do_sync_read+0xd1/0x110
[   48.508834]  [<c01369f0>] ? autoremove_wake_function+0x0/0x40
[   48.508928]  [<c0284c20>] ? n_tty_write+0x0/0x3d0
[   48.509018]  [<c02402ff>] ? security_file_permission+0xf/0x20
[   48.509103]  [<c018b194>] ? rw_verify_area+0x54/0xd0
[   48.509188]  [<c018bd39>] ? vfs_read+0x99/0x160
[   48.509269]  [<c018b030>] ? do_sync_read+0x0/0x110
[   48.509351]  [<c018bebd>] ? sys_read+0x3d/0x70
[   48.509434]  [<c0102c44>] ? sysenter_do_call+0x12/0x22
[   48.509517] Code: c1 e2 06 c1 e1 08 29 d1 8b 93 e0 7f 00 00 29 c1 c1 e1 02 
c1 ea 1e 89 d3 89 d0 c1 e3 06 c1 e0 08 29 d8 29 d0 c1 e0 02 39 c1 74 1c <0f> 
0b eb fe 8d b6 00 00 00 00 c7 45 f0 00 00 00 00 8b 45 f0 83 
[   48.511798] EIP: [<c01641c6>] move_freepages_block+0x86/0x130 SS:ESP 
0068:e7267c50
[   48.511990] ---[ end trace 45c7d49cba718751 ]---

My memory layout on this box is (from dmesg):

----
Zone PFN ranges:
  DMA      0x00000000 -> 0x00001000
  Normal   0x00001000 -> 0x00027fec
Movable zone start PFN for each node
early_node_map[3] active PFN ranges
    0: 0x00000000 -> 0x00000001
    0: 0x00000010 -> 0x000000a0
    0: 0x00000100 -> 0x00027fec
On node 0 totalpages: 163709
free_area_init_node: node 0, pgdat c0425660, node_mem_map c1000000
  DMA zone: 32 pages used for memmap
  DMA zone: 0 pages reserved
  DMA zone: 3953 pages, LIFO batch:0
  Normal zone: 1248 pages used for memmap
  Normal zone: 158476 pages, LIFO batch:31
----

The last kernel version without this problem seems to be the 2.6.30.x (I am 
running 2.6.30.10 right now without any problems).

If you need any more information from my system don't hesitate to ask.

CU Micha

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