[Bug 469195] [NEW] BUG: unable to handle kernel NULL pointer dereference at 00000008

[Iker - eL FRuTeRo]

Public bug reported:

Binary package hint: kaffeine

It ocurrs when start searching channels.

The device works in other O.S. (Win)

The device is an Asus My Cinema U3000 Hybrid and loads correctly
[  135.624190] usb 1-5: new high speed USB device using ehci_hcd and address 2
[  135.757069] usb 1-5: configuration #1 chosen from 1 choice
[  135.931175] dib0700: loaded with support for 9 different device-types
[  135.931581] dvb-usb: found a 'Asus My Cinema-U3000Hybrid' in cold state, will try to load a firmware
[  135.931593] usb 1-5: firmware: requesting dvb-usb-dib0700-1.20.fw
[  135.953288] dvb-usb: downloading firmware from file 'dvb-usb-dib0700-1.20.fw'
[  136.159285] dib0700: firmware started successfully.
[  136.660185] dvb-usb: found a 'Asus My Cinema-U3000Hybrid' in warm state.
[  136.660277] dvb-usb: will pass the complete MPEG2 transport stream to the software demuxer.
[  136.660936] DVB: registering new adapter (Asus My Cinema-U3000Hybrid)
[  136.916083] DVB: registering adapter 0 frontend 0 (DiBcom 7000PC)...
[  136.978914] xc2028 3-0061: creating new instance
[  136.978924] xc2028 3-0061: type set to XCeive xc2028/xc3028 tuner
[  136.979079] input: IR-receiver inside an USB DVB receiver as /devices/pci0000:00/0000:00:1d.7/usb1/1-5/input/input8
[  136.979167] dvb-usb: schedule remote query interval to 50 msecs.
[  136.979175] dvb-usb: Asus My Cinema-U3000Hybrid successfully initialized and connected.
[  136.983150] usbcore: registered new interface driver dvb_usb_dib0700
[  143.134450] usb 1-5: USB disconnect, address 2
[  143.134917] xc2028 3-0061: destroying instance
[  143.135308] dvb-usb: Asus My Cinema-U3000Hybrid successfully deinitialized and disconnected.

after crash:
[  320.086237] BUG: unable to handle kernel NULL pointer dereference at 00000008
[  320.086253] IP: [<c03a8a13>] _request_firmware+0x1f3/0x250
[  320.086273] *pde = 00000000 
[  320.086279] Oops: 0000 [#1] SMP 
[  320.086287] last sysfs file: /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
[  320.086294] Modules linked in: tuner_xc2028 dvb_usb_dib0700 dib7000p dib7000m dvb_usb dvb_core dib3000mc dibx000_common dib0070 binfmt_misc ppdev arc4 ecb lib80211_crypt_wep snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy pcmcia snd_seq_oss snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device iptable_filter snd yenta_socket ipw2200 soundcore rsrc_nonstatic libipw ip_tables pcmcia_core lib80211 snd_page_alloc lp x_tables joydev psmouse serio_raw parport fbcon tileblit font bitblit softcursor sky2 ohci1394 ieee1394 i915 drm i2c_algo_bit intel_agp agpgart video output
[  320.086405] 
[  320.086413] Pid: 2348, comm: kdvb-ad-0-fe-0 Not tainted (2.6.31-14-generic #48-Ubuntu) Satellite M50
[  320.086421] EIP: 0060:[<c03a8a13>] EFLAGS: 00010202 CPU: 0
[  320.086430] EIP is at _request_firmware+0x1f3/0x250
[  320.086436] EAX: 00000000 EBX: ef6d0a20 ECX: 00000001 EDX: c07068ec
[  320.086442] ESI: c07179ac EDI: e41762c8 EBP: e9dedd30 ESP: e9dedcfc
[  320.086449]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
[  320.086456] Process kdvb-ad-0-fe-0 (pid: 2348, ti=e9dec000 task=ef213240 task.ti=e9dec000)
[  320.086462] Stack:
[  320.086466]  80000300 f6aa0400 000000c0 03400000 00000006 e9dedd69 00000006 00000000
[  320.086481] <0> e9dedd94 f8502062 e9cc2300 00000000 00000000 e9dedd3c c03a8b12 00000001
[  320.086496] <0> e9deddcc f851a741 e9dede78 f850285b 00000002 00000002 f6bd86a8 f6bd8000
[  320.086514] Call Trace:
[  320.086531]  [<f8502062>] ? dib0700_ctrl_wr+0x52/0x70 [dvb_usb_dib0700]
[  320.086541]  [<c03a8b12>] ? request_firmware+0x12/0x20
[  320.086554]  [<f851a741>] ? load_all_firmwares+0x61/0x6b0 [tuner_xc2028]
[  320.086567]  [<f850285b>] ? dib0700_i2c_xfer_legacy+0x17b/0x1a0 [dvb_usb_dib0700]
[  320.086581]  [<f8502062>] ? dib0700_ctrl_wr+0x52/0x70 [dvb_usb_dib0700]
[  320.086594]  [<f850285b>] ? dib0700_i2c_xfer_legacy+0x17b/0x1a0 [dvb_usb_dib0700]
[  320.086606]  [<f851b68b>] ? check_firmware+0x45b/0x870 [tuner_xc2028]
[  320.086619]  [<f851bb05>] ? generic_set_freq+0x65/0x500 [tuner_xc2028]
[  320.086632]  [<f850289b>] ? dib0700_i2c_xfer+0x1b/0x30 [dvb_usb_dib0700]
[  320.086643]  [<c043c634>] ? i2c_transfer+0x94/0xc0
[  320.086656]  [<f822f074>] ? dib7000p_write_word+0x54/0x70 [dib7000p]
[  320.086668]  [<f851c275>] ? xc2028_set_params+0x185/0x276 [tuner_xc2028]
[  320.086680]  [<f823129b>] ? dib7000p_set_frontend+0x4b/0x170 [dib7000p]
[  320.086691]  [<c0150485>] ? try_to_del_timer_sync+0x45/0x50
[  320.086716]  [<f8208a41>] ? dvb_frontend_swzigzag_autotune+0x111/0x260 [dvb_core]
[  320.086727]  [<c013c347>] ? try_to_wake_up+0xf7/0x350
[  320.086749]  [<f8209601>] ? dvb_frontend_swzigzag+0x1d1/0x260 [dvb_core]
[  320.086770]  [<f820a007>] ? dvb_frontend_thread+0x387/0x630 [dvb_core]
[  320.086781]  [<c015c280>] ? autoremove_wake_function+0x0/0x40
[  320.086802]  [<f8209c80>] ? dvb_frontend_thread+0x0/0x630 [dvb_core]
[  320.086811]  [<c015bf8c>] ? kthread+0x7c/0x90
[  320.086819]  [<c015bf10>] ? kthread+0x0/0x90
[  320.086829]  [<c0104007>] ? kernel_thread_helper+0x7/0x10
[  320.086834] Code: 00 00 00 c7 44 24 04 d0 80 00 00 89 fa 89 34 24 ff 55 e0 83 45 e4 04 8b 45 e4 8b 00 85 c0 89 45 e0 75 d6 e9 52 fe ff ff 8b 45 e8 <8b> 70 08 e8 a5 69 ff ff 89 5c 24 0c 89 74 24 08 89 44 24 04 c7 
[  320.086921] EIP: [<c03a8a13>] _request_firmware+0x1f3/0x250 SS:ESP 0068:e9dedcfc
[  320.086933] CR2: 0000000000000008
[  320.086940] ---[ end trace a11811989326c5e4 ]---

ProblemType: KernelOops
Annotation: Your system might become unstable now and might need to be restarted.
Architecture: i386
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  mimi       1889 F.... pulseaudio
                      mimi       2337 F.... kaffeine
CRDA: Error: [Errno 2] No existe el fichero ó directorio
Card0.Amixer.info:
 Card hw:0 'ICH6'/'Intel ICH6 with ALC250 at irq 17'
   Mixer name	: 'Realtek ALC250 rev 2'
   Components	: 'AC97a:414c4752'
   Controls      : 33
   Simple ctrls  : 21
Date: Sun Nov  1 19:40:55 2009
DistroRelease: Ubuntu 9.10
Failure: oops
HibernationDevice: RESUME=UUID=bfbc6f57-b442-4720-b0fa-8539aa9ed408
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5)
MachineType: TOSHIBA Satellite M50
Package: linux-image-2.6.31-14-generic 2.6.31-14.48
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.31-14-generic root=UUID=daf7c14d-2fbe-4d17-b6d6-5198a09c03ac ro quiet splash
ProcVersionSignature: Ubuntu 2.6.31-14.48-generic
RelatedPackageVersions:
 linux-backports-modules-2.6.31-14-generic N/A
 linux-firmware 1.24
RfKill:
 
SourcePackage: linux
Tags: kernel-oops
Title: BUG: unable to handle kernel NULL pointer dereference at 00000008
Uname: Linux 2.6.31-14-generic i686
dmi.bios.date: 07/04/2005
dmi.bios.vendor: TOSHIBA
dmi.bios.version: V1.30
dmi.board.name: ECU00
dmi.board.vendor: TOSHIBA
dmi.board.version: Null
dmi.chassis.asset.tag: *
dmi.chassis.type: 10
dmi.chassis.vendor: TOSHIBA
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnTOSHIBA:bvrV1.30:bd07/04/2005:svnTOSHIBA:pnSatelliteM50:pvrPSM50E-03M01XSP:rvnTOSHIBA:rnECU00:rvrNull:cvnTOSHIBA:ct10:cvrN/A:
dmi.product.name: Satellite M50
dmi.product.version: PSM50E-03M01XSP
dmi.sys.vendor: TOSHIBA

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


** Tags: apport-kerneloops i386 kernel-oops

-- 
BUG: unable to handle kernel NULL pointer dereference at 00000008
https://bugs.launchpad.net/bugs/469195
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