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Subjectoops 2.6.0-test2 slab.c
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Nicolas is back with his slabs oops ;)

There are many coincidences with theses oops and activation of snmp/mrtg on
this particular system, maybe swap activation too, less oops with swap off (1G
ram).
I use now ulimits in case of some progs went crazy, but this is not better
than before...

Regards.

Nicolas.



Aug 1 04:04:52 hal9003 kernel: ------------[ cut here ]------------
Aug 1 04:04:52 hal9003 kernel: kernel BUG at mm/slab.c:1702!
Aug 1 04:04:52 hal9003 kernel: invalid operand: 0000 [#1]
Aug 1 04:04:52 hal9003 kernel: CPU: 0
Aug 1 04:04:52 hal9003 kernel: EIP: 0060:[free_block+449/489] Not
tainted
Aug 1 04:04:52 hal9003 kernel: EIP: 0060:[<c014cad2>] Not tainted
Aug 1 04:04:52 hal9003 kernel: EFLAGS: 00010002
Aug 1 04:04:52 hal9003 kernel: EIP is at free_block+0x1c1/0x1e9
Aug 1 04:04:52 hal9003 kernel: eax: ffb7ffff ebx: 00000021 ecx: 00000001
edx: 0000003d
Aug 1 04:04:52 hal9003 kernel: esi: d5820000 edi: d5820018 ebp: f7797c74
esp: f7797c4c
Aug 1 04:04:52 hal9003 kernel: ds: 007b es: 007b ss: 0068
Aug 1 04:04:52 hal9003 kernel: Process kswapd0 (pid: 7, threadinfo=f7796000
task=f77c1000)
Aug 1 04:04:52 hal9003 kernel: Stack: 00000000 f7797c78 00000022 f7ffd92c
f7ffd93c 00000021 00000009 f7fee014
Aug 1 04:04:52 hal9003 kernel: d5820180 00000010 f7797cac c014ccfb
f7ffd920 f7fee014 00000010 00000000
Aug 1 04:04:52 hal9003 kernel: f7797cc0 00000282 00010c00 f7ffe75c
00000010 00010c00 d5820180 f7ffd920
Aug 1 04:04:52 hal9003 kernel: Call Trace:
Aug 1 04:04:52 hal9003 kernel: [cache_flusharray+513/616]
cache_flusharray+0x201/0x268
Aug 1 04:04:52 hal9003 kernel: [<c014ccfb>] cache_flusharray+0x201/0x268
Aug 1 04:04:52 hal9003 kernel: [kmem_cache_free+546/828]
kmem_cache_free+0x222/0x33c
Aug 1 04:04:52 hal9003 kernel: [<c014d335>] kmem_cache_free+0x222/0x33c
Aug 1 04:04:52 hal9003 kernel: [free_buffer_head+34/59]
free_buffer_head+0x22/0x3b
Aug 1 04:04:52 hal9003 kernel: [<c016f6b5>] free_buffer_head+0x22/0x3b
Aug 1 04:04:52 hal9003 kernel: [free_buffer_head+34/59]
free_buffer_head+0x22/0x3b
Aug 1 04:04:52 hal9003 kernel: [<c016f6b5>] free_buffer_head+0x22/0x3b
Aug 1 04:04:52 hal9003 kernel: [try_to_free_buffers+298/505]
try_to_free_buffers+0x12a/0x1f9
Aug 1 04:04:52 hal9003 kernel: [<c016f4be>] try_to_free_buffers+0x12a/0x1f9
Aug 1 04:04:52 hal9003 kernel: [__pagevec_free+27/36]
__pagevec_free+0x1b/0x24
Aug 1 04:04:52 hal9003 kernel: [<c014807e>] __pagevec_free+0x1b/0x24
Aug 1 04:04:52 hal9003 kernel: [reiserfs_releasepage+398/506]
reiserfs_releasepage+0x18e/0x1fa
Aug 1 04:04:52 hal9003 kernel: [<c01e6626>] reiserfs_releasepage+0x18e/0x1fa
Aug 1 04:04:52 hal9003 kernel: [try_to_release_page+88/102]
try_to_release_page+0x58/0x66
Aug 1 04:04:52 hal9003 kernel: [<c016d3bd>] try_to_release_page+0x58/0x66
Aug 1 04:04:52 hal9003 kernel: [shrink_list+1853/2257]
shrink_list+0x73d/0x8d1
Aug 1 04:04:52 hal9003 kernel: [<c015140a>] shrink_list+0x73d/0x8d1
Aug 1 04:04:52 hal9003 kernel: [common_interrupt+24/32]
common_interrupt+0x18/0x20
Aug 1 04:04:52 hal9003 kernel: [<c010a748>] common_interrupt+0x18/0x20
Aug 1 04:04:52 hal9003 kernel: [shrink_cache+459/1422]
shrink_cache+0x1cb/0x58e
Aug 1 04:04:52 hal9003 kernel: [<c0151769>] shrink_cache+0x1cb/0x58e
Aug 1 04:04:52 hal9003 kernel: [shrink_zone+155/157] shrink_zone+0x9b/0x9d
Aug 1 04:04:52 hal9003 kernel: [<c0152598>] shrink_zone+0x9b/0x9d
Aug 1 04:04:52 hal9003 kernel: [autoremove_wake_function+0/75]
autoremove_wake_function+0x0/0x4b
Aug 1 04:04:52 hal9003 kernel: [<c011f1b2>]
autoremove_wake_function+0x0/0x4b
Aug 1 04:04:52 hal9003 kernel: [balance_pgdat+274/391]
balance_pgdat+0x112/0x187
Aug 1 04:04:52 hal9003 kernel: [<c015288d>] balance_pgdat+0x112/0x187
Aug 1 04:04:52 hal9003 kernel: [kswapd+248/250] kswapd+0xf8/0xfa
Aug 1 04:04:52 hal9003 kernel: [<c01529fa>] kswapd+0xf8/0xfa
Aug 1 04:04:52 hal9003 kernel: [autoremove_wake_function+0/75]
autoremove_wake_function+0x0/0x4b
Aug 1 04:04:52 hal9003 kernel: [<c011f1b2>]
autoremove_wake_function+0x0/0x4b
Aug 1 04:04:52 hal9003 kernel: [autoremove_wake_function+0/75]
autoremove_wake_function+0x0/0x4b
Aug 1 04:04:52 hal9003 kernel: [<c011f1b2>]
autoremove_wake_function+0x0/0x4b
Aug 1 04:04:52 hal9003 kernel: [kswapd+0/250] kswapd+0x0/0xfa
Aug 1 04:04:52 hal9003 kernel: [<c0152902>] kswapd+0x0/0xfa
Aug 1 04:04:52 hal9003 kernel: [kernel_thread_helper+5/11]
kernel_thread_helper+0x5/0xb
Aug 1 04:04:52 hal9003 kernel: [<c0107211>] kernel_thread_helper+0x5/0xb
Aug 1 04:04:52 hal9003 kernel:
Aug 1 04:04:52 hal9003 kernel: Code: 0f 0b a6 06 63 69 32 c0 e9 e5 fe ff ff
0f 0b a5 06 63 69 32
Aug 1 04:04:52 hal9003 kernel: fs/buffer.c:889:
spin_lock(fs/reiserfs/journal.c:f8cde0e0) already locked by
fs/reiserfs/inode.c/2291
Aug 1 04:04:52 hal9003 kernel: mm/slab.c:1955: spin_lock(mm/slab.c:f7ffd964)
already locked by mm/slab.c/1955
Aug 1 04:04:52 hal9003 kernel: ------------[ cut here ]------------
Aug 1 04:04:52 hal9003 kernel: kernel BUG at mm/slab.c:1701!
Aug 1 04:04:52 hal9003 kernel: invalid operand: 0000 [#2]
Aug 1 04:04:52 hal9003 kernel: CPU: 0
Aug 1 04:04:52 hal9003 kernel: EIP: 0060:[free_block+412/489] Not
tainted
Aug 1 04:04:52 hal9003 kernel: EIP: 0060:[<c014caad>] Not tainted
Aug 1 04:04:52 hal9003 kernel: EFLAGS: 00010002
Aug 1 04:04:52 hal9003 kernel: EIP is at free_block+0x19c/0x1e9
Aug 1 04:04:52 hal9003 kernel: eax: 00000018 ebx: 0000003e ecx: 00000000
edx: 0000003d
Aug 1 04:04:52 hal9003 kernel: esi: f0a0b000 edi: f0a0b018 ebp: e9ddf9f4
esp: e9ddf9cc
Aug 1 04:04:52 hal9003 kernel: ds: 007b es: 007b ss: 0068
Aug 1 04:04:52 hal9003 kernel: Process uniq (pid: 16647, threadinfo=e9dde000
task=cbaca000)
Aug 1 04:04:52 hal9003 kernel: Stack: c020569d c01e43c6 00000018 f7ffd92c
f7ffd93c 0000001a 00000000 f7fee014
Aug 1 04:04:52 hal9003 kernel: c247d180 00000010 e9ddfa2c c014ccfb
f7ffd920 f7fee014 00000010 c0326963
Aug 1 04:04:52 hal9003 kernel: f7ffd964 c0326963 000007a3 f7ffe75c
00000010 00010c00 c247d180 f7ffd920
Aug 1 04:04:52 hal9003 kernel: Call Trace:
Aug 1 04:04:52 hal9003 kernel: [check_journal_end+390/682]
check_journal_end+0x186/0x2aa
Aug 1 04:04:52 hal9003 kernel: [<c020569d>] check_journal_end+0x186/0x2aa
Aug 1 04:04:52 hal9003 kernel: [reiserfs_update_sd+437/540]
reiserfs_update_sd+0x1b5/0x21c
Aug 1 04:04:52 hal9003 kernel: [<c01e43c6>] reiserfs_update_sd+0x1b5/0x21c
Aug 1 04:04:52 hal9003 kernel: [cache_flusharray+513/616]
cache_flusharray+0x201/0x268
Aug 1 04:04:52 hal9003 kernel: [<c014ccfb>] cache_flusharray+0x201/0x268
Aug 1 04:04:52 hal9003 kernel: [kmem_cache_free+546/828]
kmem_cache_free+0x222/0x33c
Aug 1 04:04:52 hal9003 kernel: [<c014d335>] kmem_cache_free+0x222/0x33c
Aug 1 04:04:52 hal9003 kernel: [free_buffer_head+34/59]
free_buffer_head+0x22/0x3b
Aug 1 04:04:52 hal9003 kernel: [<c016f6b5>] free_buffer_head+0x22/0x3b
Aug 1 04:04:52 hal9003 kernel: [free_buffer_head+34/59]
free_buffer_head+0x22/0x3b
Aug 1 04:04:52 hal9003 kernel: [<c016f6b5>] free_buffer_head+0x22/0x3b
Aug 1 04:04:52 hal9003 kernel: [try_to_free_buffers+298/505]
try_to_free_buffers+0x12a/0x1f9
Aug 1 04:04:52 hal9003 kernel: [<c016f4be>] try_to_free_buffers+0x12a/0x1f9
Aug 1 04:04:52 hal9003 kernel: [__pagevec_free+27/36]
__pagevec_free+0x1b/0x24
Aug 1 04:04:52 hal9003 kernel: [<c014807e>] __pagevec_free+0x1b/0x24
Aug 1 04:04:52 hal9003 kernel: [reiserfs_releasepage+398/506]
reiserfs_releasepage+0x18e/0x1fa
Aug 1 04:04:52 hal9003 kernel: [<c01e6626>] reiserfs_releasepage+0x18e/0x1fa
Aug 1 04:04:52 hal9003 kernel: [try_to_release_page+88/102]
try_to_release_page+0x58/0x66
Aug 1 04:04:52 hal9003 kernel: [<c016d3bd>] try_to_release_page+0x58/0x66
Aug 1 04:04:52 hal9003 kernel: [shrink_list+1853/2257]
shrink_list+0x73d/0x8d1
Aug 1 04:04:52 hal9003 kernel: [<c015140a>] shrink_list+0x73d/0x8d1
Aug 1 04:04:52 hal9003 kernel: [shrink_cache+459/1422]
shrink_cache+0x1cb/0x58e
Aug 1 04:04:52 hal9003 kernel: [<c0151769>] shrink_cache+0x1cb/0x58e
Aug 1 04:04:52 hal9003 kernel: [shrink_zone+155/157] shrink_zone+0x9b/0x9d
Aug 1 04:04:52 hal9003 kernel: [<c0152598>] shrink_zone+0x9b/0x9d
Aug 1 04:04:52 hal9003 kernel: [shrink_caches+147/168]
shrink_caches+0x93/0xa8
Aug 1 04:04:52 hal9003 kernel: [<c015262d>] shrink_caches+0x93/0xa8
Aug 1 04:04:52 hal9003 kernel: [try_to_free_pages+136/313]
try_to_free_pages+0x88/0x139
Aug 1 04:04:52 hal9003 kernel: [<c01526ca>] try_to_free_pages+0x88/0x139
Aug 1 04:04:52 hal9003 kernel: [__alloc_pages+458/857]
__alloc_pages+0x1ca/0x359
Aug 1 04:04:52 hal9003 kernel: [<c0147e37>] __alloc_pages+0x1ca/0x359
Aug 1 04:04:52 hal9003 kernel: [find_or_create_page+165/179]
find_or_create_page+0xa5/0xb3
Aug 1 04:04:52 hal9003 kernel: [<c0143a87>] find_or_create_page+0xa5/0xb3
Aug 1 04:04:52 hal9003 kernel:
[reiserfs_prepare_file_region_for_write+2542/2667]
reiserfs_prepare_file_region_for_write+0x9ee/0xa6b
Aug 1 04:04:52 hal9003 kernel: [<c01e902e>]
reiserfs_prepare_file_region_for_write+0x9ee/0xa6b
Aug 1 04:04:52 hal9003 kernel: [make_cpu_key+84/94] make_cpu_key+0x54/0x5e
Aug 1 04:04:52 hal9003 kernel: [<c01e1e85>] make_cpu_key+0x54/0x5e
Aug 1 04:04:52 hal9003 kernel: [pathrelse+41/127] pathrelse+0x29/0x7f
Aug 1 04:04:52 hal9003 kernel: [<c01f9a24>] pathrelse+0x29/0x7f
Aug 1 04:04:52 hal9003 kernel: [reiserfs_file_write+800/1501]
reiserfs_file_write+0x320/0x5dd
Aug 1 04:04:52 hal9003 kernel: [<c01e93cb>] reiserfs_file_write+0x320/0x5dd
Aug 1 04:04:52 hal9003 kernel: [autoremove_wake_function+37/75]
autoremove_wake_function+0x25/0x4b
Aug 1 04:04:52 hal9003 kernel: [<c011f1d7>]
autoremove_wake_function+0x25/0x4b
Aug 1 04:04:52 hal9003 kernel: [pipe_read+456/585] pipe_read+0x1c8/0x249
Aug 1 04:04:52 hal9003 kernel: [<c0179baf>] pipe_read+0x1c8/0x249
Aug 1 04:04:52 hal9003 kernel: [timer_interrupt+338/877]
timer_interrupt+0x152/0x36d
Aug 1 04:04:52 hal9003 kernel: [<c0111d00>] timer_interrupt+0x152/0x36d
Aug 1 04:04:52 hal9003 kernel: [vfs_write+175/281] vfs_write+0xaf/0x119
Aug 1 04:04:52 hal9003 kernel: [<c016910e>] vfs_write+0xaf/0x119
Aug 1 04:04:52 hal9003 kernel: [sys_write+63/93] sys_write+0x3f/0x5d
Aug 1 04:04:52 hal9003 kernel: [<c0169214>] sys_write+0x3f/0x5d
Aug 1 04:04:52 hal9003 kernel: [syscall_call+7/11] syscall_call+0x7/0xb
Aug 1 04:04:52 hal9003 kernel: [<c0109ddb>] syscall_call+0x7/0xb
Aug 1 04:04:52 hal9003 kernel:
Aug 1 04:04:52 hal9003 kernel: Code: 0f 0b a5 06 63 69 32 c0 e9 56 ff ff ff
8b 45 08 8b 50 3c e9
Aug 1 04:04:52 hal9003 kernel: fs/buffer.c:889:
spin_lock(fs/reiserfs/journal.c:f8cde0e0) already locked by
fs/reiserfs/inode.c/2291
Aug 1 04:04:53 hal9003 kernel: mm/slab.c:2412: spin_lock(mm/slab.c:f7ffd964)
already locked by mm/slab.c/1955

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