Comment 6 for bug 115284

I have the same problem with "Hanftek UMT-010 DVB-T USB2.0" controller and kernel 2.6.20-16-generic #2 SMP Sun Sep 23 19:50:39 UTC 2007 i686 GNU/Linux. The modules load fine, but if I start kaffeine for watching TV, the application crashes and the following errors occurs in /var/log/messages

[ 198.684000] dvb-usb: could not submit URB no. 20 - get them all back
[ 198.688000] BUG: unable to handle kernel paging request at virtual address 27767434
[ 198.688000] printing eip:
[ 198.688000] f88b0ee5
[ 198.688000] *pde = 00000000
[ 198.688000] Oops: 0000 [#1]
[ 198.688000] SMP
[ 198.688000] Modules linked in: mt352 dvb_usb_umt_010 dvb_usb_dibusb_common dib3000mc dibx000_common dvb_usb dvb_core dvb_pll binfmt_misc ipx p8023 uinput xt_tcpudp xt_state ipt_REJECT ipt_LOG xt_limit iptable_nat nf_nat nf_conntrack_ipv4 nf_conntrack nfnetlink iptable_filter ip_tables x_tables af_packet i915 ppdev acpi_cpufreq cpufreq_userspace tc1100_wmi pcc_acpi dev_acpi sony_acpi video sbs ibm_acpi i2c_ec dock button battery container ac asus_acpi backlight dm_mod cmtp kernelcapi bnep l2cap sco bluetooth cpuid msr cpufreq_stats cpufreq_conservative cpufreq_ondemand cpufreq_powersave freq_table eeprom i2c_i801 i2c_core i810 drm nvram parport_pc lp parport snd_hda_intel snd_hda_codec snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi snd_seq_midi_event ipw3945 pcmcia snd_seq snd_timer snd_seq_device psmouse ieee80211 snd serio_raw pcspkr ieee80211_crypt soundcore snd_page_alloc yenta_socket rsrc_nonstatic pcmcia_core iTCO_wdt iTCO_vendor_support intel_agp agpgart shpchp pci_hotplug evdev tsdev ipv6 ext3 jbd mbcache sg sd_mod usbhid hid ata_piix ata_generic ahci libata scsi_mod generic tg3 uhci_hcd ehci_hcd usbcore ide_cd thermal processor fan fbcon tileblit font bitblit softcursor vesafb capability commoncap cdrom ide_generic
[ 198.688000] CPU: 0
[ 198.688000] EIP: 0060:[<f88b0ee5>] Not tainted VLI
[ 198.688000] EFLAGS: 00010206 (2.6.20-16-generic #2)
[ 198.688000] EIP is at usb_kill_urb+0x15/0x100 [usbcore]
[ 198.688000] eax: 00000000 ebx: 27767414 ecx: 00000293 edx: d5c1e000
[ 198.688000] esi: e75b4b3c edi: ffffffea ebp: 00000001 esp: d5c1fde8
[ 198.688000] ds: 007b es: 007b ss: 0068
[ 198.688000] Process kaffeine (pid: 6356, ti=d5c1e000 task=d6d50030 task.ti=d5c1e000)
[ 198.688000] Stack: 00000000 d6d50030 c013ae00 d5c1fdf4 d5c1fdf4 00000021 e75b4b3c ffffffea
[ 198.688000] f8ed4b8c e75b4b3c 00000014 f8ed4c55 f8ed5668 00000014 e75b480c 00000001
[ 198.688000] f8f04000 f8ed4331 c02edaa8 e75b48e8 f8f04000 fffffe00 e75b4ac0 f8ee720e
[ 198.688000] Call Trace:
[ 198.688000] [<c013ae00>] autoremove_wake_function+0x0/0x50
[ 198.688000] [<f8ed4b8c>] usb_urb_kill+0x1c/0x40 [dvb_usb]
[ 198.688000] [<f8ed4c55>] usb_urb_submit+0x55/0x60 [dvb_usb]
[ 198.688000] [<f8ed4331>] dvb_usb_ctrl_feed+0x91/0x120 [dvb_usb]
[ 198.688000] [<c02edaa8>] mutex_lock_interruptible+0x8/0x20
[ 198.688000] [<f8ee720e>] dmx_ts_feed_start_filtering+0x4e/0xe0 [dvb_core]
[ 198.688000] [<f8ee5280>] dvb_dmxdev_filter_start+0x290/0x3e0 [dvb_core]
[ 198.688000] [<f8ee5508>] dvb_demux_do_ioctl+0x138/0x3b0 [dvb_core]
[ 198.688000] [<f8ee40e4>] dvb_usercopy+0x64/0x140 [dvb_core]
[ 198.688000] [<c01793ef>] chrdev_open+0xaf/0x170
[ 198.688000] [<c0179340>] chrdev_open+0x0/0x170
[ 198.688000] [<c0174ce1>] __dentry_open+0x161/0x1c0
[ 198.688000] [<c0174df5>] nameidata_to_filp+0x35/0x40
[ 198.688000] [<c0174e50>] do_filp_open+0x50/0x60
[ 198.688000] [<f8ee4b58>] dvb_demux_ioctl+0x18/0x20 [dvb_core]
[ 198.688000] [<f8ee53d0>] dvb_demux_do_ioctl+0x0/0x3b0 [dvb_core]
[ 198.688000] [<c01826d8>] do_ioctl+0x78/0x90
[ 198.688000] [<c018274c>] vfs_ioctl+0x5c/0x2a0
[ 198.688000] [<c0182a02>] sys_ioctl+0x72/0x90
[ 198.688000] [<c01031f0>] sysenter_past_esp+0x69/0xa9
[ 198.688000] =======================
[ 198.688000] Code: db c7 04 24 08 c7 8b f8 e8 49 5d 87 c7 eb e1 8d b4 26 00 00 00 00 57 56 53 89 c3 83 ec 14 e8 b3 c0 a3 c7 85 db 0f 84 d5 00 00 00 <8b> 43 20 85 c0 0f 84 ca 00 00 00 8b 40 30 85 c0 0f 84 bf 00 00
[ 198.688000] EIP: [<f88b0ee5>] usb_kill_urb+0x15/0x100 [usbcore] SS:ESP 0068:d5c1fde8
[ 198.688000]