oops with 2.6.8.1 (kswapd?)
From: Frank Steiner
Date: Tue Sep 07 2004 - 02:24:34 EST
Hi,
I just detected a kernel oops in my /var/log/messages, but I've no idea
what caused it... I didn't do anything special, or ran out of memory
or swap space or sth.
Here are the messages and the output of ksymoops. Does it tell someone
what could be wrong?
Sep 7 08:54:25 galois kernel: Unable to handle kernel NULL pointer dereference at virtual address 00000005
Sep 7 08:54:25 galois kernel: printing eip:
Sep 7 08:54:25 galois kernel: c013ba0e
Sep 7 08:54:25 galois kernel: *pde = 00000000
Sep 7 08:54:25 galois kernel: Oops: 0002 [#1]
Sep 7 08:54:25 galois kernel: Modules linked in: fglrx ipt_LOG ipt_limit iptable_filter ip_tables snd_seq_oss snd_pcm_oss snd_mixer_oss snd_seq_midi
snd_seq_midi_event snd_seq snd_ens1371 snd_via82xx ipv6 snd_ac97_codec snd_pcm snd_timer snd_page_alloc gameport snd_mpu401_uart snd_rawmidi snd_seq_device snd
soundcore l2cap hci_vhci hci_uart hci_usb bluetooth via_ircc irda crc_ccitt ehci_hcd uhci_hcd usbcore it87 i2c_sensor i2c_isa i2c_core ide_cd subfs
nls_iso8859_1 nls_cp437 vfat fat dm_mod
Sep 7 08:54:25 galois kernel: CPU: 0
Sep 7 08:54:25 galois kernel: EIP: 0060:[free_block+110/224] Tainted: PF
Sep 7 08:54:25 galois kernel: EIP: 0060:[<c013ba0e>] Tainted: PF
Sep 7 08:54:25 galois kernel: EFLAGS: 00010012 (2.6.8-1.3-bio-default)
Sep 7 08:54:25 galois kernel: EIP is at free_block+0x6e/0xe0
Sep 7 08:54:25 galois kernel: eax: 00000001 ebx: c32bf000 ecx: c32bf040 edx: d0fc2000
Sep 7 08:54:25 galois kernel: esi: c196c5e0 edi: 00000006 ebp: 0000001b esp: c19d9e9c
Sep 7 08:54:25 galois kernel: ds: 007b es: 007b ss: 0068
Sep 7 08:54:25 galois kernel: Process kswapd0 (pid: 37, threadinfo=c19d8000 task=c19605e0)
Sep 7 08:54:25 galois kernel: Stack: c196c5fc c19fa050 c19fa050 c196c5e0 f694a580 c19ee660 c013bab6 0000001b
Sep 7 08:54:25 galois kernel: c19fa040 c19fa040 00000286 f694a580 00000080 c013bd37 f694a614 c19d9f04
Sep 7 08:54:25 galois kernel: 00000015 c0162a04 f694a614 c0162c5f ca7dbb5c ca7dbb54 0000d95c c016300c
Sep 7 08:54:25 galois kernel: Call Trace:
Sep 7 08:54:25 galois kernel: [cache_flusharray+54/192] cache_flusharray+0x36/0xc0
Sep 7 08:54:25 galois kernel: [<c013bab6>] cache_flusharray+0x36/0xc0
Sep 7 08:54:25 galois kernel: [kmem_cache_free+39/48] kmem_cache_free+0x27/0x30
Sep 7 08:54:25 galois kernel: [<c013bd37>] kmem_cache_free+0x27/0x30
Sep 7 08:54:25 galois kernel: [destroy_inode+68/80] destroy_inode+0x44/0x50
Sep 7 08:54:25 galois kernel: [<c0162a04>] destroy_inode+0x44/0x50
Sep 7 08:54:25 galois kernel: [dispose_list+31/144] dispose_list+0x1f/0x90
Sep 7 08:54:25 galois kernel: [<c0162c5f>] dispose_list+0x1f/0x90
Sep 7 08:54:25 galois kernel: [prune_icache+348/480] prune_icache+0x15c/0x1e0
Sep 7 08:54:25 galois kernel: [<c016300c>] prune_icache+0x15c/0x1e0
Sep 7 08:54:25 galois kernel: [shrink_icache_memory+53/96] shrink_icache_memory+0x35/0x60
Sep 7 08:54:25 galois kernel: [<c01630c5>] shrink_icache_memory+0x35/0x60
Sep 7 08:54:25 galois kernel: [shrink_slab+295/384] shrink_slab+0x127/0x180
Sep 7 08:54:25 galois kernel: [<c013d5e7>] shrink_slab+0x127/0x180
Sep 7 08:54:25 galois kernel: [balance_pgdat+479/656] balance_pgdat+0x1df/0x290
Sep 7 08:54:25 galois kernel: [<c013e8ef>] balance_pgdat+0x1df/0x290
Sep 7 08:54:25 galois kernel: [kswapd+181/208] kswapd+0xb5/0xd0
Sep 7 08:54:25 galois kernel: [<c013ea55>] kswapd+0xb5/0xd0
Sep 7 08:54:25 galois kernel: [autoremove_wake_function+0/48] autoremove_wake_function+0x0/0x30
Sep 7 08:54:25 galois kernel: [<c011a220>] autoremove_wake_function+0x0/0x30
Sep 7 08:54:25 galois kernel: [autoremove_wake_function+0/48] autoremove_wake_function+0x0/0x30
Sep 7 08:54:25 galois kernel: [<c011a220>] autoremove_wake_function+0x0/0x30
Sep 7 08:54:25 galois kernel: [kswapd+0/208] kswapd+0x0/0xd0
Sep 7 08:54:25 galois kernel: [<c013e9a0>] kswapd+0x0/0xd0
Sep 7 08:54:25 galois kernel: [kernel_thread_helper+5/24] kernel_thread_helper+0x5/0x18
Sep 7 08:54:25 galois kernel: [<c010424d>] kernel_thread_helper+0x5/0x18
Sep 7 08:54:25 galois kernel: Code: 89 50 04 8b 43 0c c7 03 00 01 10 00 29 c1 c7 43 04 00 02 20
Output of ksymoops:
Sep 7 08:54:25 galois kernel: Unable to handle kernel NULL pointer dereference at virtual address 00000005
Sep 7 08:54:25 galois kernel: c013ba0e
Sep 7 08:54:25 galois kernel: *pde = 00000000
Sep 7 08:54:25 galois kernel: Oops: 0002 [#1]
Sep 7 08:54:25 galois kernel: CPU: 0
Sep 7 08:54:25 galois kernel: EIP: 0060:[free_block+110/224] Tainted: PF
Sep 7 08:54:25 galois kernel: EIP: 0060:[<c013ba0e>] Tainted: PF
Sep 7 08:54:25 galois kernel: EFLAGS: 00010012 (2.6.8-1.3-bio-default)
Sep 7 08:54:25 galois kernel: eax: 00000001 ebx: c32bf000 ecx: c32bf040 edx: d0fc2000
Sep 7 08:54:25 galois kernel: esi: c196c5e0 edi: 00000006 ebp: 0000001b esp: c19d9e9c
Sep 7 08:54:25 galois kernel: ds: 007b es: 007b ss: 0068
Sep 7 08:54:25 galois kernel: Stack: c196c5fc c19fa050 c19fa050 c196c5e0 f694a580 c19ee660 c013bab6 0000001b
Sep 7 08:54:25 galois kernel: c19fa040 c19fa040 00000286 f694a580 00000080 c013bd37 f694a614 c19d9f04
Sep 7 08:54:25 galois kernel: 00000015 c0162a04 f694a614 c0162c5f ca7dbb5c ca7dbb54 0000d95c c016300c
Sep 7 08:54:25 galois kernel: Call Trace:
Sep 7 08:54:25 galois kernel: [<c013bab6>] cache_flusharray+0x36/0xc0
Sep 7 08:54:25 galois kernel: [<c013bd37>] kmem_cache_free+0x27/0x30
Sep 7 08:54:25 galois kernel: [<c0162a04>] destroy_inode+0x44/0x50
Sep 7 08:54:25 galois kernel: [<c0162c5f>] dispose_list+0x1f/0x90
Sep 7 08:54:25 galois kernel: [<c016300c>] prune_icache+0x15c/0x1e0
Sep 7 08:54:25 galois kernel: [<c01630c5>] shrink_icache_memory+0x35/0x60
Sep 7 08:54:25 galois kernel: [<c013d5e7>] shrink_slab+0x127/0x180
Sep 7 08:54:25 galois kernel: [<c013e8ef>] balance_pgdat+0x1df/0x290
Sep 7 08:54:25 galois kernel: [<c013ea55>] kswapd+0xb5/0xd0
Sep 7 08:54:25 galois kernel: [<c011a220>] autoremove_wake_function+0x0/0x30
Sep 7 08:54:25 galois kernel: [<c011a220>] autoremove_wake_function+0x0/0x30
Sep 7 08:54:25 galois kernel: [<c013e9a0>] kswapd+0x0/0xd0
Sep 7 08:54:25 galois kernel: [<c010424d>] kernel_thread_helper+0x5/0x18
Sep 7 08:54:25 galois kernel: Code: 89 50 04 8b 43 0c c7 03 00 01 10 00 29 c1 c7 43 04 00 02 20
>>EIP; c013ba0e <free_block+6e/e0> <=====
>>ebx; c32bf000 <__crc_neigh_delete+458ce7/629d2b>
>>ecx; c32bf040 <__crc_neigh_delete+458d27/629d2b>
>>edx; d0fc2000 <__crc_audit_log_format+e79b4/114d66>
>>esi; c196c5e0 <__crc_tcf_action_dump+e091/20db2d>
>>esp; c19d9e9c <__crc_tcf_action_dump+7b94d/20db2d>
Trace; c013bab6 <cache_flusharray+36/c0>
Trace; c013bd37 <kmem_cache_free+27/30>
Trace; c0162a04 <destroy_inode+44/50>
Trace; c0162c5f <dispose_list+1f/90>
Trace; c016300c <prune_icache+15c/1e0>
Trace; c01630c5 <shrink_icache_memory+35/60>
Trace; c013d5e7 <shrink_slab+127/180>
Trace; c013e8ef <balance_pgdat+1df/290>
Trace; c013ea55 <kswapd+b5/d0>
Trace; c011a220 <autoremove_wake_function+0/30>
Trace; c011a220 <autoremove_wake_function+0/30>
Trace; c013e9a0 <kswapd+0/d0>
Trace; c010424d <kernel_thread_helper+5/18>
Code; c013ba0e <free_block+6e/e0>
00000000 <_EIP>:
Code; c013ba0e <free_block+6e/e0> <=====
0: 89 50 04 mov %edx,0x4(%eax) <=====
Code; c013ba11 <free_block+71/e0>
3: 8b 43 0c mov 0xc(%ebx),%eax
Code; c013ba14 <free_block+74/e0>
6: c7 03 00 01 10 00 movl $0x100100,(%ebx)
Code; c013ba1a <free_block+7a/e0>
c: 29 c1 sub %eax,%ecx
Code; c013ba1c <free_block+7c/e0>
e: c7 43 04 00 02 20 00 movl $0x200200,0x4(%ebx)
cu,
Frank
--
Dipl.-Inform. Frank Steiner Web: http://www.bio.ifi.lmu.de/~steiner/
Lehrstuhl f. Bioinformatik Mail: http://www.bio.ifi.lmu.de/~steiner/m/
LMU, Amalienstr. 17 Phone: +49 89 2180-4049
80333 Muenchen, Germany Fax: +49 89 2180-99-4049
* Rekursion kann man erst verstehen, wenn man Rekursion verstanden hat. *
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