kernel BUG at include/linux/list.h:148!

Hello, I'm using -mm branch since 2.6.0-pre kernels, and now I'm finding
problems (well, *another* type of problems) since 2.6.1-rc1-mm2. Last kernel without this error was 2.6.1-rc2-mm1.

The error is always the same (at least to me, poor non kernel-hacker):

------------[ cut here ]------------
kernel BUG at include/linux/list.h:148!
invalid operand: 0000 [#1]
CPU:    0
EIP:    0060:[<c012ee1d>]    Not tainted VLI
EFLAGS: 00010203

EIP is at __remove_from_page_cache+0x71/0x7b
eax: c13e22b8 ebx: dd2058bc ecx: c13e22c0 edx: c1122c90
esi: c13e22b8 edi: dfdb5e60 ebp: dd2058bc esp: dfdb5d88
ds: 007b es: 007b ss: 0068
Process kswapd0 (pid: 8, threadinfo=dfdb4000 task=dfdbace0)

Stack: dd2058c0 000145cd 00000001 c13e22b8 c0137e0b c13e22b8 c02fce0a d6df1480
       00000001 000000b1 00000000 dfdb5db4 dfdb5db4 dfdb5dc0 00000003 c04ade88
       00000001 c10502f8 c03d58b4 00000003 c04b0560 00000001 00000001 c13a7c80
Call Trace:
 [<c0137e0b>] shrink_list+0x2c0/0x476
 [<c02fce0a>] __kfree_skb+0x68/0xd9
 [<c013813f>] shrink_cache+0x17e/0x2df
 [<c015b74b>] shrink_dcache_memory+0x23/0x25
 [<c0137a76>] shrink_slab+0x11b/0x15e
 [<c0138b4a>] balance_pgdat+0x18e/0x21e
 [<c0138cec>] kswapd+0x112/0x122
 [<c011add5>] autoremove_wake_function+0x0/0x4f
 [<c011add5>] autoremove_wake_function+0x0/0x4f
 [<c0138bda>] kswapd+0x0/0x122
 [<c0108d45>] kernel_thread_helper+0x5/0xb

Code: 01 10 00 c7 46 10 00 00 00 00 83 6b 30 01 83 05 80 04 4b c0 ff 8b 74 24 0c 8b 5c 24 08 83 c4 10 c3 0f 0b 95 00 f6 e8 38 c0 eb c5 <0f> 0b 94 00 f6 e8 38 c0 eb b3 8b 54 24 04 8b 02 f7 d0 a8 01 75

This error, for example, is printed with the server's current kernel,
2.6.2-rc1-mm1.

The machine is P4 with XFS over RAID0 by software, Apache2 in thread mode,
and root filesystem on ext3.

Please don't hesitate to request further info.

Kind regards,

Ender.

Someone else was seeing something similar. Reverting

	ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.2-rc1/2.6.2-rc1-mm1/broken-out/sysfs-pin-kobject.patch

apparently fixed it.

Andrew, thank you very much for your prompt response.

I'll try tomorrow, as it seemed to had hung and I need to go to the
university to reboot it.

Have you kicked it out of your next release? I see that is into
2.6.2-rc1-mm3.

Anyway I'll take a look and will report to you.

Thanks again,

Ender.
--
Network engineer
Debian developer

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El Martes, 27 de Enero de 2004 01:16, Andrew Morton escribió:

Andrew, sorry, but it seems that sysfs-pin-object is not guilty:

[...]
b44: eth0: Flow control is on for TX and on for RX.
eth0: no IPv6 routers present
- ------------[ cut here ]------------ kernel BUG at include/linux/list.h:148!

invalid operand: 0000 [#1]
CPU:    0
EIP:    0060:[<c012ee1d>]    Not tainted VLI
EFLAGS: 00010202

EIP is at __remove_from_page_cache+0x71/0x7b
eax: c13e22b8 ebx: c844b13c ecx: c13e22c0 edx: c12ed480
esi: c13e22b8 edi: dfdb5e60 ebp: c844b13c esp: dfdb5d88
ds: 007b es: 007b ss: 0068
Process kswapd0 (pid: 8, threadinfo=dfdb4000 task=dfdbace0)

Stack: c844b140 00005850 00000001 c13e22b8 c0137e0b c13e22b8 c02fcdbe cc636380
       00000001 00000029 00000000 dfdb5db4 dfdb5db4 dfdb5dc0 0000012c 00000001
       00000001 c10e73b0 c03d58b4 00000001 c04b05c0 00000009 00000001 c114a078
Call Trace:
 [<c0137e0b>] shrink_list+0x2c0/0x476
 [<c02fcdbe>] __kfree_skb+0x68/0xd9
 [<c013813f>] shrink_cache+0x17e/0x2df
 [<c0138774>] shrink_zone+0x77/0x9b
 [<c0138b4a>] balance_pgdat+0x18e/0x21e
 [<c0138cec>] kswapd+0x112/0x122
 [<c011add5>] autoremove_wake_function+0x0/0x4f
 [<c011add5>] autoremove_wake_function+0x0/0x4f
 [<c0138bda>] kswapd+0x0/0x122
 [<c0108d45>] kernel_thread_helper+0x5/0xb

Code: 01 10 00 c7 46 10 00 00 00 00 83 6b 30 01 83 05 80 04 4b c0 ff 8b 74 24 0c 8b 5c 24 08 83 c4 10 c3 0f 0b 95 00 96 e8 38 c0 eb c5 <0f> 0b 94 00 96 e8 38 c0 eb b3 8b 54 24 04 8b 02 f7 d0 a8 01 75

The box keeps running, but it seems that starts to
degrade itself until becomes unresponsive.

Now it's running 2.6.2-rc1-mm1 without sysfs-pin-kobject.patch.

Any other hint?

- --
Yes I'm old. Old enough to remember when the MCP was just a chess program!
-- Dumont (Tron)
- --
Servicios de red - Network services
RedIRIS - Spanish Academic Network for Research and Development Madrid (Spain)
Tlf (+34) 91.585.51.50
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