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kernel BUG at /home/fabio/w/bfq/cfq/block/cfq-iosched.c:1184!
invalid opcode: 0000 [#1] PREEMPT 
Modules linked in: cfq_iosched(-) fan ac battery thermal button processor [last unloaded: cfq_iosched]

Pid: 2468, comm: rmmod Not tainted (2.6.25-rc8 #4)
EIP: 0060:[<d9019466>] EFLAGS: 00010246 CPU: 0
EIP is at cic_free_func+0xd/0x59 [cfq_iosched]
EAX: d83e4f48 EBX: d79a45f4 ECX: 0000000e EDX: d79a45f4
ESI: d83e4f48 EDI: d805a130 EBP: d805a62c ESP: d79d3ecc
 DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068
Process rmmod (pid: 2468, ti=d79d2000 task=d79c4f70 task.ti=d79d2000)
Stack: d83e4f48 d9019459 d805a130 d805a62c d90193f3 d79a4634 d805a130 d901c2d8 
       c02a6387 d79d3f2c 00000000 bfbff8c0 d79d2000 d901ace3 00000000 00000001 
       dead4ead ffffffff ffffffff c04f563c 00000000 c042ddd1 d79d3f4c d79d3f4c 
Call Trace:
 [<d9019459>] cic_free_func+0x0/0x59 [cfq_iosched]
 [<d90193f3>] call_for_each_cic+0x4b/0x89 [cfq_iosched]
 [<c02a6387>] elv_unregister+0x39/0x97
 [<d901ace3>] cfq_exit+0x40/0x64 [cfq_iosched]
 [<c023362d>] sys_delete_module+0x155/0x1a0
 [<c0245a6a>] sys_munmap+0x2f/0x34
 [<c0203c8f>] restore_nocheck+0x12/0x15
 [<c0203c2e>] syscall_call+0x7/0xb
 [<c026bf9b>] bio_fs_destructor+0x0/0xb
 =======================
Code: 01 d9 e9 66 ff ff ff ba 59 94 01 d9 e9 5c ff ff ff 83 c0 50 ba b2 94 01 d9 e9 47 d0 21 e7 55 57 56 89 c6 53 89 d3 3b 50 44 75 04 <0f> 0b eb fe 83 7a 04 00 75 04 0f 0b eb fe 8d 78 08 89 f8 e8 8e 
EIP: [<d9019466>] cic_free_func+0xd/0x59 [cfq_iosched] SS:ESP 0068:d79d3ecc
---[ end trace 850800f58e443bcf ]---