[Bug 530047] [NEW] kernel BUG at cfq-iosched.c:1456!

[AZ]

Public bug reported:

Booting karmic via LTSP and with the nouveau-Driver installed, I get a kernel error messages regarding the cfq-scheduler.
The dkms subsystem is also abornmally slow though the driver has already been build on the server host.

Mar  1 06:20:46 ::ffff:192.168.1.3 kernel: [ 2852.404974] ------------[ cut here ]------------
Mar  1 06:20:46 ::ffff:192.168.1.3 kernel: [ 2852.405054] kernel BUG at /build/buildd/linux-2.6.31/block/cfq-iosched.c:1456!
Mar  1 06:20:46 ::ffff:192.168.1.3 kernel: [ 2852.405122] invalid opcode: 0000 [#1] SMP 
Mar  1 06:20:46 ::ffff:192.168.1.3 kernel: [ 2852.405252] last sysfs file: /sys/devices/virtual/block/nbd9/pid
Mar  1 06:20:46 ::ffff:192.168.1.3 kernel: [ 2852.405316] Modules linked in: snd_cmipci gameport snd_pcm_oss snd_mixer_oss snd_pcm snd_page_alloc snd_opl3_lib snd_hwdep snd_mpu401_uart snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi snd_seq_midi_event nouveau snd_seq ttm snd_timer snd_seq_device ppdev drm floppy parport_pc snd i2c_via lp psmouse i2c_algo_bit shpchp serio_raw soundcore parport aufs squashfs nbd 8139too 8139cp mii via_agp agpgart ramzswap xvmalloc lzo_decompress lzo_compress
Mar  1 06:20:46 ::ffff:192.168.1.3 kernel: [ 2852.407200] 
Mar  1 06:20:46 ::ffff:192.168.1.3 kernel: [ 2852.407259] Pid: 5177, comm: Xorg Not tainted (2.6.31-19-generic #56-Ubuntu) VT82C597
Mar  1 06:20:46 ::ffff:192.168.1.3 kernel: [ 2852.407328] EIP: 0060:[<c030d40c>] EFLAGS: 00013246 CPU: 0
Mar  1 06:20:46 ::ffff:192.168.1.3 kernel: [ 2852.407409] EIP is at cic_free_func+0x6c/0x70
Mar  1 06:20:46 ::ffff:192.168.1.3 kernel: [ 2852.407470] EAX: cdc85780 EBX: cdfab120 ECX: 00000001 EDX: 00000000
Mar  1 06:20:46 ::ffff:192.168.1.3 kernel: [ 2852.407535] ESI: cdc85780 EDI: 00000000 EBP: cf937f40 ESP: cf937f30
Mar  1 06:20:46 ::ffff:192.168.1.3 kernel: [ 2852.407599]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
Mar  1 06:20:46 ::ffff:192.168.1.3 kernel: [ 2852.407666] Process Xorg (pid: 5177, ti=cf936000 task=ced7e480 task.ti=cf936000)
Mar  1 06:20:46 ::ffff:192.168.1.3 kernel: [ 2852.407731] Stack:
Mar  1 06:20:46 ::ffff:192.168.1.3 kernel: [ 2852.407782]  c0147432 cdfab168 cdc85780 00000000 cf937f50 c030d430 cdc85780 00000001
Mar  1 06:20:46 ::ffff:192.168.1.3 kernel: [ 2852.408093] <0> cf937f5c c0306103 cdc85780 cf937f68 c03061ca ced7e480 cf937f90 c0147d2c
Mar  1 06:20:46 ::ffff:192.168.1.3 kernel: [ 2852.408093] <0> cf937fb4 00334020 cf937fac c057344b 00000001 00000000 ce829200 00000000
Mar  1 06:20:46 ::ffff:192.168.1.3 kernel: [ 2852.408093] Call Trace:
Mar  1 06:20:46 ::ffff:192.168.1.3 kernel: [ 2852.408093]  [<c0147432>] ? forget_original_parent+0x32/0x230
Mar  1 06:20:46 ::ffff:192.168.1.3 kernel: [ 2852.408093]  [<c030d430>] ? cfq_free_io_context+0x20/0x30
Mar  1 06:20:46 ::ffff:192.168.1.3 kernel: [ 2852.408093]  [<c0306103>] ? put_io_context+0x43/0x60
Mar  1 06:20:46 ::ffff:192.168.1.3 kernel: [ 2852.408093]  [<c03061ca>] ? exit_io_context+0x6a/0x70
Mar  1 06:20:46 ::ffff:192.168.1.3 kernel: [ 2852.408093]  [<c0147d2c>] ? do_exit+0x1ac/0x2e0
Mar  1 06:20:46 ::ffff:192.168.1.3 kernel: [ 2852.408093]  [<c057344b>] ? do_page_fault+0x19b/0x380
Mar  1 06:20:46 ::ffff:192.168.1.3 kernel: [ 2852.408093]  [<c0147e9a>] ? do_group_exit+0x3a/0xb0
Mar  1 06:20:46 ::ffff:192.168.1.3 kernel: [ 2852.408093]  [<c0147f23>] ? sys_exit_group+0x13/0x20
Mar  1 06:20:46 ::ffff:192.168.1.3 kernel: [ 2852.408093]  [<c010336c>] ? syscall_call+0x7/0xb
Mar  1 06:20:46 ::ffff:192.168.1.3 kernel: [ 2852.408093] Code: 8b 55 f0 89 f8 c7 43 4c 00 02 20 00 e8 1e 3c 26 00 8d 43 58 ba 40 d4 30 c0 e8 a1 5a e8 ff 8b 5d f4 8b 75 f8 8b 7d fc 89 ec 5d c3 <0f> 0b eb fe 55 89 e5 56 89 c6 53 8b 58 28 85 db 74 18 66 90 8b 
Mar  1 06:20:46 ::ffff:192.168.1.3 kernel: [ 2852.408093] EIP: [<c030d40c>] cic_free_func+0x6c/0x70 SS:ESP 0068:cf937f30
Mar  1 06:20:46 ::ffff:192.168.1.3 kernel: [ 2852.412651] ---[ end trace d1275cb777a61dad ]---

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

-- 
kernel BUG at cfq-iosched.c:1456!
https://bugs.launchpad.net/bugs/530047
You received this bug notification because you are a member of Kernel
Bugs, which is subscribed to linux in ubuntu.