[pvrusb2] driver oops [was: An Apology to the list]

[Michal Witkowski]

Hello,

I've got a really similar problem in Mythbuntu 10.04 LTS when 
suspending/resuming/unloading the pvrusb2 module.

I've already reported it to Ubuntu launchpad:
https://bugs.launchpad.net/mythbuntu/+bug/580176

Could you please provide a patch against 2.6.32 which fixes the issue?

Best regards,
Michal

I get the following trace:
[ 180.972026] usbcore: deregistering interface driver pvrusb2
[ 180.972083] pvrusb2: Device being rendered inoperable
[ 180.972264] pvrusb2: unregistered device video0 [mpeg]
[ 180.972345] pvrusb2: unregistered device radio0 [mpeg]
[ 180.974077] tuner-simple 1-0061: destroying instance
[ 180.974198] tda9887 1-0043: destroying instance
[ 180.974332] BUG: unable to handle kernel paging request at 00100100
[ 180.974343] IP: [<00100100>] 0x100100
[ 180.974359] *pde = 6e557067
[ 180.974366] Oops: 0000 [#1] SMP
[ 180.974372] last sysfs file: /sys/module/pvrusb2/refcnt
[ 180.974379] Modules linked in: vboxnetadp vboxnetflt vboxdrv lirc_serial nfs 
lockd nfs_acl lirc_dev auth_rpcgss i2c_algo_bit sunrpc tuner_simple tuner_types 
snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss 
snd_mixer_oss snd_pcm tda9887 snd_seq_dummy snd_seq_oss snd_seq_midi tda8290 
snd_rawmidi snd_seq_midi_event fbcon wm8775 snd_seq tileblit tuner snd_timer font 
nvidia(P) snd_seq_device bitblit agpgart softcursor cx25840 snd vga16fb soundcore 
snd_page_alloc pvrusb2(-) dvb_core i2c_nforce2 vgastate lp parport cx2341x 
serio_raw v4l2_common joydev k8temp videodev v4l1_compat tveeprom usbhid hid 
usb_storage floppy forcedeth ahci pata_amd
[ 180.974486]
[ 180.974496] Pid: 804, comm: pvrusb2-context Tainted: P (2.6.32-22-generic #33-
Ubuntu) .
[ 180.974504] EIP: 0060:[<00100100>] EFLAGS: 00010206 CPU: 0
[ 180.974512] EIP is at 0x100100
[ 180.974517] EAX: f690ac00 EBX: f690af00 ECX: 00000001 EDX: 00100100
[ 180.974524] ESI: f690ac04 EDI: e2ca3f98 EBP: e2ca3f88 ESP: e2ca3f74
[ 180.974530] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
[ 180.974538] Process pvrusb2-context (pid: 804, ti=e2ca2000 task=e373c010 
task.ti=e2ca2000)
[ 180.974544] Stack:
[ 180.974548] f8492d4c f84927f2 f690af00 f690af00 e373c010 e2ca3fb8 f8492e43 
e373c2bc
[ 180.974562] <0> e373c010 00000000 e373c010 c0167740 e2ca3fa4 e2ca3fa4 e2ca1f04 
00000000
[ 180.974577] <0> f8492e00 e2ca3fe0 c01674b4 00000000 00000000 00000000 e2ca3fcc 
e2ca3fcc
[ 180.974593] Call Trace:
[ 180.974623] [<f8492d4c>] ? pvr2_context_check+0x3c/0xf0 [pvrusb2]
[ 180.974647] [<f84927f2>] ? pvr2_context_set_notify+0xc2/0x100 [pvrusb2]
[ 180.974672] [<f8492e43>] ? pvr2_context_thread_func+0x43/0x1d0 [pvrusb2]
[ 180.974689] [<c0167740>] ? autoremove_wake_function+0x0/0x50
[ 180.974712] [<f8492e00>] ? pvr2_context_thread_func+0x0/0x1d0 [pvrusb2]
[ 180.974721] [<c01674b4>] ? kthread+0x74/0x80
[ 180.974729] [<c0167440>] ? kthread+0x0/0x80
[ 180.974739] [<c0104087>] ? kernel_thread_helper+0x7/0x10
[ 180.974744] Code: Bad EIP value.
[ 180.974750] EIP: [<00100100>] 0x100100 SS:ESP 0068:e2ca3f74
[ 180.974762] CR2: 0000000000100100
[ 180.974770] ---[ end trace 5100c461a7ceb6d2 ]---