[ 25.860005] vboxdrv: Trying to deactivate the NMI watchdog permanently... [ 25.860010] vboxdrv: Successfully done. [ 25.860012] vboxdrv: Found 2 processor cores. [ 25.861278] VBoxDrv: dbg - g_abExecMemory=ffffffffa0f3cd60 [ 25.861300] vboxdrv: fAsync=1 offMin=0x2eda65 offMax=0x2eda65 [ 25.862978] vboxdrv: TSC mode is 'asynchronous', kernel timer mode is 'normal'. [ 25.862983] vboxdrv: Successfully loaded version 3.2.8_OSE (interface 0x00140001). [ 26.911567] svc: failed to register lockdv1 RPC service (errno 97). [ 26.913359] NFSD: Using /var/lib/nfs/v4recovery as the NFSv4 state recovery directory [ 26.921379] NFSD: starting 90-second grace period [ 28.515372] Clocksource tsc unstable (delta = -103108067 ns) [ 28.784548] EXT4-fs (sda6): re-mounted. Opts: errors=remount-ro,commit=0 [ 28.796172] EXT4-fs (sda8): re-mounted. Opts: commit=0 [ 32.221495] EXT4-fs (sda6): re-mounted. Opts: errors=remount-ro,commit=0 [ 32.956123] EXT4-fs (sda8): re-mounted. Opts: commit=0 [ 35.402524] eth0: no IPv6 routers present [ 74.050066] usb 2-2: new high speed USB device using ehci_hcd and address 2 [ 74.544616] dib0700: loaded with support for 14 different device-types [ 74.544814] dvb-usb: found a 'Leadtek Winfast DTV Dongle (STK7700P based)' in cold state, will try to load a firmware [ 74.596576] dvb-usb: downloading firmware from file 'dvb-usb-dib0700-1.20.fw' [ 74.799036] dib0700: firmware started successfully. [ 75.300338] dvb-usb: found a 'Leadtek Winfast DTV Dongle (STK7700P based)' in warm state. [ 75.300510] dvb-usb: will pass the complete MPEG2 transport stream to the software demuxer. [ 75.300693] DVB: registering new adapter (Leadtek Winfast DTV Dongle (STK7700P based)) [ 75.669676] DVB: registering adapter 0 frontend 0 (DiBcom 7000MA/MB/PA/PB/MC)... [ 75.734295] MT2060: successfully identified (IF1 = 1220) [ 76.347800] dvb-usb: Leadtek Winfast DTV Dongle (STK7700P based) successfully initialized and connected. [ 76.348138] usbcore: registered new interface driver dvb_usb_dib0700 [ 91.178111] BUG: unable to handle kernel NULL pointer dereference at 0000000000000012 [ 91.178131] IP: [] i2c_transfer+0x1e/0xf0 [ 91.178152] PGD 6010f067 PUD 6010e067 PMD 0 [ 91.178164] Oops: 0000 [#1] SMP [ 91.178171] last sysfs file: /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq [ 91.178179] CPU 1 [ 91.178183] Modules linked in: mt2060 dvb_usb_dib0700 dib7000p dib0090 dib7000m dib0070 dvb_usb dib8000 dvb_core dib3000mc dibx000_common binfmt_misc vboxnetadp vboxnetflt vboxdrv parport_pc ppdev nfsd exportfs nfs lockd fscache nfs_acl auth_rpcgss snd_hda_codec_realtek joydev sunrpc arc4 snd_hda_intel snd_hda_codec snd_hwdep nvidia(P) snd_pcm nls_iso8859_1 nls_cp437 snd_seq_midi snd_rawmidi snd_seq_midi_event vfat fat snd_seq snd_timer snd_seq_device ath5k mac80211 uvcvideo snd ath r852 sm_common nand videodev v4l1_compat nand_ids nand_ecc v4l2_compat_ioctl32 mtd edac_core cfg80211 psmouse soundcore edac_mce_amd serio_raw k8temp i2c_nforce2 snd_page_alloc lirc_ene0100(C) lirc_dev video output lp parport firewire_ohci ahci firewire_core sdhci_pci sdhci crc_itu_t led_class pata_amd libahci forcedeth [ 91.178328] [ 91.178338] Pid: 2083, comm: kaffeine Tainted: P C 2.6.35-22-generic #33-Ubuntu Fuquene/Aspire 5520 [ 91.178345] RIP: 0010:[] [] i2c_transfer+0x1e/0xf0 [ 91.178360] RSP: 0018:ffff880060017ad8 EFLAGS: 00010296 [ 91.178366] RAX: 00000000ffffffa1 RBX: 00000000000000eb RCX: 0000000000000000 [ 91.178373] RDX: 0000000000000002 RSI: ffff880060017b28 RDI: 0000000000000002 [ 91.178379] RBP: ffff880060017b18 R08: ffff88003742a300 R09: 000000000e008d80 [ 91.178386] R10: dead000000200200 R11: dead000000100100 R12: 0000000000000000 [ 91.178392] R13: 0000000000000001 R14: 0000000000000002 R15: ffff880063976c80 [ 91.178401] FS: 00007f1472188760(0000) GS:ffff880001f00000(0000) knlGS:0000000000000000 [ 91.178408] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 91.178414] CR2: 0000000000000012 CR3: 0000000060110000 CR4: 00000000000006e0 [ 91.178420] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 91.178427] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 91.178434] Process kaffeine (pid: 2083, threadinfo ffff880060016000, task ffff88006c0116e0) [ 91.178440] Stack: [ 91.178444] ffff8800621eaf00 ffff8800375269a0 0000000000000020 00000000000000eb [ 91.178454] <0> 0000000000000000 0000000000000001 ffffc900112a1000 ffff880063976c80 [ 91.178465] <0> ffff880060017b78 ffffffffa0d9c27e 0000000200000010 ffff880060017b58 [ 91.178477] Call Trace: [ 91.178494] [] dib7000p_read_word+0x6e/0xc0 [dib7000p] [ 91.178507] [] dib7000p_pid_filter_ctrl+0x2b/0xa0 [dib7000p] [ 91.178521] [] ? usb_urb_submit+0x3e/0x84 [dvb_usb] [ 91.178537] [] stk70x0p_pid_filter_ctrl+0x19/0x1c [dvb_usb_dib0700] [ 91.178549] [] dvb_usb_ctrl_feed+0x152/0x170 [dvb_usb] [ 91.178560] [] dvb_usb_start_feed+0x13/0x20 [dvb_usb] [ 91.178584] [] dmx_ts_feed_start_filtering+0x67/0xf0 [dvb_core] [ 91.178600] [] dvb_dmxdev_start_feed+0xd3/0x130 [dvb_core] [ 91.178618] [] dvb_dmxdev_filter_start+0x2ee/0x3e0 [dvb_core] [ 91.178634] [] dvb_dmxdev_pes_filter_set+0x195/0x1b0 [dvb_core] [ 91.178651] [] dvb_demux_do_ioctl+0x441/0x580 [dvb_core] [ 91.178667] [] dvb_usercopy+0xbf/0x1a0 [dvb_core] [ 91.178683] [] ? dvb_demux_do_ioctl+0x0/0x580 [dvb_core] [ 91.178694] [] ? do_filp_open+0x241/0x660 [ 91.178704] [] ? unlock_page+0x27/0x30 [ 91.178720] [] dvb_demux_ioctl+0x4f/0x80 [dvb_core] [ 91.178730] [] vfs_ioctl+0x3d/0xd0 [ 91.178738] [] do_vfs_ioctl+0x81/0x340 [ 91.178747] [] sys_ioctl+0x81/0xa0 [ 91.178760] [] system_call_fastpath+0x16/0x1b [ 91.178766] Code: e8 c8 6d f4 ff c9 c3 eb 04 90 90 90 90 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 ec 18 0f 1f 44 00 00 b8 a1 ff ff ff 41 89 d6 <48> 8b 57 10 48 89 fb 49 89 f5 48 83 3a 00 0f 84 8e 00 00 00 65 [ 91.178852] RIP [] i2c_transfer+0x1e/0xf0 [ 91.178863] RSP [ 91.178868] CR2: 0000000000000012 [ 91.178875] ---[ end trace 9aac955a788a2b17 ]---