Kernel Oops with Hauppauge WinTV NOVA T USB2 & Remote Control

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Hi.

I was trying to use the remote control and I got the following error
in the kernel.
I remember I used the Remote Control 4-5 months ago with success.
To reproduce the problem it is enough to send a key with the remote to the card.

Fedora Core 5
kernel from source 2.6.18
latest (1 hour ago) mercurial of v4l-dvb

Loading the card

Oct  5 20:44:51 thinkpad kernel: usb 4-4: new high speed USB device
using ehci_hcd and address 3
Oct  5 20:44:51 thinkpad kernel: usb 4-4: configuration #1 chosen from 1 choice
Oct  5 20:44:51 thinkpad kernel: dvb-usb: found a 'Hauppauge
WinTV-NOVA-T usb2' in cold state, will try to load a firmware
Oct  5 20:44:52 thinkpad kernel: dvb-usb: downloading firmware from
file 'dvb-usb-nova-t-usb2-02.fw'
Oct  5 20:44:52 thinkpad kernel: usbcore: registered new driver
dvb_usb_nova_t_usb2
Oct  5 20:44:52 thinkpad kernel: usb 4-4: USB disconnect, address 3
Oct  5 20:44:52 thinkpad kernel: dvb-usb: generic DVB-USB module
successfully deinitialized and disconnected.
Oct  5 20:44:54 thinkpad kernel: usb 4-4: new high speed USB device
using ehci_hcd and address 4
Oct  5 20:44:54 thinkpad kernel: usb 4-4: configuration #1 chosen from 1 choice
Oct  5 20:44:54 thinkpad kernel: dvb-usb: found a 'Hauppauge
WinTV-NOVA-T usb2' in warm state.
Oct  5 20:44:54 thinkpad kernel: dvb-usb: will pass the complete MPEG2
transport stream to the software demuxer.
Oct  5 20:44:54 thinkpad kernel: DVB: registering new adapter
(Hauppauge WinTV-NOVA-T usb2).
Oct  5 20:44:54 thinkpad kernel: dvb-usb: MAC address: 00:0d:fe:04:8b:40
Oct  5 20:44:54 thinkpad kernel: DVB: registering frontend 0 (DiBcom
3000MC/P)...
Oct  5 20:44:54 thinkpad kernel: input: IR-receiver inside an USB DVB
receiver as /class/input/input5
Oct  5 20:44:54 thinkpad kernel: dvb-usb: schedule remote query
interval to 100 msecs.
Oct  5 20:44:54 thinkpad kernel: dvb-usb: Hauppauge WinTV-NOVA-T usb2
successfully initialized and connected.

and then when a key in the remote is pressed

Oct  5 20:45:01 thinkpad kernel: BUG: unable to handle kernel NULL
pointer dereference at virtual address 00000014
Oct  5 20:45:01 thinkpad kernel:  printing eip:
Oct  5 20:45:01 thinkpad kernel: e0ac5119
Oct  5 20:45:01 thinkpad kernel: *pde = 00000000
Oct  5 20:45:01 thinkpad kernel: Oops: 0000 [#1]
Oct  5 20:45:01 thinkpad kernel: Modules linked in: mt2060
dvb_usb_nova_t_usb2 dvb_usb_dibusb_common dib3000mc dibx000_common
dvb_usb dvb_core dvb_pll i2c_dev i2c_core xt_tcpudp xt_state
iptable_nat ip_nat ip_conntrack iptable_filter ip_tables x_tables 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 ohci1394
ieee1394 snd_mixer_oss snd_pcm ehci_hcd uhci_hcd snd_timer snd
intel_agp ipw2100 e1000 agpgart soundcore snd_page_alloc ieee80211
pcspkr ieee80211_crypt
Oct  5 20:45:01 thinkpad kernel: CPU:    0
Oct  5 20:45:01 thinkpad kernel: EIP:    0060:[<e0ac5119>]    Not tainted VLI
Oct  5 20:45:01 thinkpad kernel: EFLAGS: 00010246   (2.6.18 #1)
Oct  5 20:45:01 thinkpad kernel: EIP is at nova_t_rc_query+0x100/0x13d
[dvb_usb_nova_t_usb2]
Oct  5 20:45:01 thinkpad kernel: eax: 00000000   ebx: 0000000f   ecx:
0000007f   edx: 00000071
Oct  5 20:45:01 thinkpad kernel: esi: 00000000   edi: 0000001e   ebp:
0000000f   esp: dfe29f28
Oct  5 20:45:01 thinkpad kernel: ds: 007b   es: 007b   ss: 0068
Oct  5 20:45:01 thinkpad kernel: Process events/0 (pid: 3, ti=dfe28000
task=dfe0e030 task.ti=dfe28000)
Oct  5 20:45:01 thinkpad kernel: Stack: 00000000 da404fb4 00000000
dcb5a580 7fbc0130 3504c700 00000286 da404000
Oct  5 20:45:01 thinkpad kernel:        c14796c0 da404000 e0ae17a7
da404000 dfe29f64 dfe29f60 00000001 00000071
Oct  5 20:45:01 thinkpad kernel:        00000286 da404f9c c011ba5c
da404000 e0ae1782 c14796d0 c14796c0 c14796c8
Oct  5 20:45:01 thinkpad kernel: Call Trace:
Oct  5 20:45:01 thinkpad kernel:  [<e0ae17a7>]
dvb_usb_read_remote_control+0x25/0xee [dvb_usb]
Oct  5 20:45:01 thinkpad kernel:  [<c011ba5c>] run_workqueue+0x68/0x96
Oct  5 20:45:01 thinkpad kernel:  [<e0ae1782>]
dvb_usb_read_remote_control+0x0/0xee [dvb_usb]
Oct  5 20:45:01 thinkpad kernel:  [<c011bf7a>] worker_thread+0xf2/0x124
Oct  5 20:45:01 thinkpad kernel:  [<c010d018>] default_wake_function+0x0/0x15
Oct  5 20:45:01 thinkpad kernel:  [<c011be88>] worker_thread+0x0/0x124
Oct  5 20:45:01 thinkpad kernel:  [<c011e045>] kthread+0xb1/0xe0
Oct  5 20:45:01 thinkpad kernel:  [<c011df94>] kthread+0x0/0xe0
Oct  5 20:45:01 thinkpad kernel:  [<c0100ac9>] kernel_thread_helper+0x5/0xb
Oct  5 20:45:01 thinkpad kernel: Code: 63 ac e0 75 4f 89 fa 38 14 dd
80 63 ac e0 75 44 8b 44 24 30 8b 14 dd 84 63 ac e0 89 10 8b 44 24 34
c7 00 01 00 00 00 0f b6 04 24 <39> 46 14 75 18 8b 56 18 8d 42 01 4a 89
46 18 7f 22 8b 54 24 34
Oct  5 20:45:01 thinkpad kernel: EIP: [<e0ac5119>]
nova_t_rc_query+0x100/0x13d [dvb_usb_nova_t_usb2] SS:ESP 0068:dfe29f28

It happened more that once (with and without X)
Afterward the system is hardly able to reboot.

Any more debug I can provide?

Thanks

Mario

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