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Kernel Oops with Hauppauge WinTV NOVA T USB2



Hi

I get kernel Oops when I plug in my Hauppauge WinTV NOVA T USB2.
I'm using kernel 2.6.16.15 and the latest Mercurial of V4L.
Everything works fine with the module included in the kernel tree. Only the one from Video4Linux generates the error.
I have the same error with the same module recompiled for kernel 2.6.16.8 and 2.6.16.12.

It used to work very well untill some time ago, but unfortunately the only thing I can claim is that this problem appeared sometime
before 27/04/06 (I have another copy of V4L compiled on that day, which is not working either), but I would say that 1 month ago it worked.

Here is the content of my /var/log/messages

May 10 23:01:53 thinkpad kernel: usb 1-4: new high speed USB device using ehci_hcd and address 5
May 10 23:01:53 thinkpad kernel: usb 1-4: configuration #1 chosen from 1 choice
May 10 23:01:54 thinkpad kernel: dvb-usb: found a 'Hauppauge WinTV-NOVA-T usb2' in cold state, will try to load a firmware
May 10 23:01:54 thinkpad kernel: dvb-usb: downloading firmware from file 'dvb-usb-nova-t-usb2-01.fw'
May 10 23:01:54 thinkpad kernel: usbcore: registered new driver dvb_usb_nova_t_usb2
May 10 23:01:54 thinkpad kernel: usb 1-4: USB disconnect, address 5
May 10 23:01:54 thinkpad kernel: dvb-usb: generic DVB-USB module successfully deinitialized and disconnected.
May 10 23:01:55 thinkpad kernel: usb 1-4: new high speed USB device using ehci_hcd and address 6
May 10 23:01:55 thinkpad kernel: usb 1-4: configuration #1 chosen from 1 choice
May 10 23:01:55 thinkpad kernel: dvb-usb: found a 'Hauppauge WinTV-NOVA-T usb2' in warm state.
May 10 23:01:55 thinkpad kernel: dvb-usb: will pass the complete MPEG2 transport stream to the software demuxer.
May 10 23:01:55 thinkpad kernel: DVB: registering new adapter (Hauppauge WinTV-NOVA-T usb2).
May 10 23:01:55 thinkpad kernel: dvb-usb: MAC address: 00:0d:fe:04:8b:40
May 10 23:01:55 thinkpad kernel: Unable to handle kernel NULL pointer dereference at virtual address 00000000
May 10 23:01:55 thinkpad kernel:  printing eip:
May 10 23:01:55 thinkpad kernel: e0b072b5
May 10 23:01:55 thinkpad kernel: *pde = 00000000
May 10 23:01:55 thinkpad kernel: Oops: 0000 [#1]
May 10 23:01:55 thinkpad kernel: Modules linked in: dvb_usb_nova_t_usb2 dvb_usb_dibusb_common dib3000mc dib3000_common dvb_usb dvb_core dvb_pll radeon drm i2c_dev i2c_core xt_tcpudp xt_state iptable_nat ip_nat ip_conntrack iptable_filter ip_tables x_tables arc4 ieee80211_crypt_wep vfat fat parport_pc parport nvram 8250_pci 8250 serial_core snd_intel8x0m snd_intel8x0 snd_ac97_codec snd_ac97_bus snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss snd_pcm ohci1394 ipw2100 ieee1394 e1000 uhci_hcd ehci_hcd ieee80211 ieee80211_crypt snd_timer snd intel_agp soundcore snd_page_alloc agpgart hw_random
May 10 23:01:55 thinkpad kernel: CPU:    0
May 10 23:01:55 thinkpad kernel: EIP:    0060:[<e0b072b5>]    Not tainted VLI
May 10 23:01:55 thinkpad kernel: EFLAGS: 00210282   (2.6.16.15 #1) 
May 10 23:01:55 thinkpad kernel: EIP is at dibusb_dib3000mc_frontend_attach+0x15/0x7d [dvb_usb_dibusb_common]
May 10 23:01:55 thinkpad kernel: eax: 00000000   ebx: c928b000   ecx: c928b530   edx: e0af07ec
May 10 23:01:55 thinkpad kernel: esi: d117c2e0   edi: 00000000   ebp: c928b000   esp: c166ddf8
May 10 23:01:55 thinkpad kernel: ds: 007b   es: 007b   ss: 0068
May 10 23:01:55 thinkpad kernel: Process khubd (pid: 104, threadinfo=c166c000 task=c1645a70)
May 10 23:01:55 thinkpad kernel: Stack: <0>c928b000 c928b000 c928b000 e0b280a6 c928b000 c928b000 e0b275d1 c928b000 
May 10 23:01:55 thinkpad kernel:        e0b12dec e0b12dec 00000000 d94ace00 e0b12ca0 e0b12cc4 dd5b2858 e0b12015 
May 10 23:01:55 thinkpad kernel:        d94ace00 e0b12d60 e0b13480 00000000 c020d20d d94ace00 e0b133f4 00000000 
May 10 23:01:55 thinkpad kernel: Call Trace:
May 10 23:01:55 thinkpad kernel:  [<e0b280a6>] dvb_usb_fe_init+0x2a/0xe2 [dvb_usb]
May 10 23:01:56 thinkpad kernel:  [<e0b275d1>] dvb_usb_device_init+0x2ce/0x349 [dvb_usb]
May 10 23:01:56 thinkpad kernel:  [<e0b12015>] nova_t_probe+0x15/0x19 [dvb_usb_nova_t_usb2]
May 10 23:01:56 thinkpad kernel:  [<c020d20d>] usb_probe_interface+0x58/0x87
May 10 23:01:56 thinkpad kernel:  [<c01eef92>] driver_probe_device+0x42/0x8c
May 10 23:01:56 thinkpad kernel:  [<c01eefdc>] __device_attach+0x0/0x5
May 10 23:01:56 thinkpad kernel:  [<c01ee9b9>] bus_for_each_drv+0x45/0x71
May 10 23:01:56 thinkpad kernel:  [<c01ef022>] device_attach+0x41/0x52
May 10 23:01:56 thinkpad kernel:  [<c01eefdc>] __device_attach+0x0/0x5
May 10 23:01:56 thinkpad kernel:  [<c01ee8bc>] bus_add_device+0x2e/0xe6
May 10 23:01:56 thinkpad kernel:  [<c01ede19>] device_add+0xc6/0x123
May 10 23:01:56 thinkpad kernel:  [<c020c78d>] usb_set_configuration+0x360/0x3c8
May 10 23:01:57 thinkpad kernel:  [<c02086df>] usb_new_device+0x1ea/0x244
May 10 23:01:57 thinkpad kernel:  [<c0209474>] hub_thread+0x670/0x9b1
May 10 23:01:57 thinkpad kernel:  [<c0273cb0>] schedule+0x462/0x4cf
May 10 23:01:57 thinkpad kernel:  [<c011ece8>] autoremove_wake_function+0x0/0x3a
May 10 23:01:57 thinkpad kernel:  [<c011eae5>] kthread+0x81/0xc2
May 10 23:01:57 thinkpad kernel:  [<c0208e04>] hub_thread+0x0/0x9b1
May 10 23:01:57 thinkpad kernel:  [<c011eaf9>] kthread+0x95/0xc2
May 10 23:01:57 thinkpad kernel:  [<c011ea64>] kthread+0x0/0xc2
May 10 23:01:57 thinkpad kernel:  [<c0100a65>] kernel_thread_helper+0x5/0xb
May 10 23:01:57 thinkpad kernel: Code: 74 24 34 ff 74 24 34 53 56 e8 94 11 02 00 31 c0 83 c4 30 5b 5e c3 56 53 83 ec 04 8b 5c 24 10 8b 83 34 0a 00 00 8b b3 c4 0a 00 00 <8b> 00 c7 80 98 01 00 00 78 7d b2 e0 8b 83 34 0a 00 00 8b 00 c7 
May 10 23:01:59 thinkpad udevd-event[24928]: wait_for_sysfs: waiting for '/sys/devices/pci0000:00/0000:00:1d.7/usb1/1-4/1-4:1.0/bus' failed

any idea what is going wrong?

ciao

Mario

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