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[Bug 1015836] Re: 2040:c000 BUG: unable to handle kernel NULL pointer dereference at 0000000000000050; RIP: 0010:[<ffffffffa069a5b7>] [<ffffffffa069a5b7>] show_protocols+0xf7/0x110 [rc_core]

To: kernel-packages@xxxxxxxxxxxxxxxxxxx
From: Launchpad Bug Tracker <1015836@xxxxxxxxxxxxxxxxxx>
Date: Wed, 15 Jan 2014 21:39:30 -0000
Reply-to: Bug 1015836 <1015836@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
** Branch linked: lp:ubuntu/lucid-updates/linux-lts-backport-oneiric

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https://bugs.launchpad.net/bugs/1015836

Title:
  2040:c000 BUG: unable to handle kernel NULL pointer dereference at
  0000000000000050; RIP: 0010:[<ffffffffa069a5b7>] [<ffffffffa069a5b7>]
  show_protocols+0xf7/0x110 [rc_core]

Status in The Linux Kernel:
  New
Status in “linux” package in Ubuntu:
  Fix Released
Status in “linux” source package in Oneiric:
  Fix Released
Status in “linux” source package in Precise:
  Fix Released
Status in “linux” source package in Quantal:
  Fix Released

Bug description:
  When I unplug my USB DVB tuner, the computer stops doing anything
  useful.

  Attached screenshot show the stack trace, etc (Sorry for the wobbly
  camera).  I think the same information found its way into
  /var/log/syslog (excerpts below), but the picture is there just in
  case.

  
  This is present with 3.2.0-26-generic  x86_64 and linux-image-3.4.0-030400-generic (201205210521) from the kernel-ppa kernel.

  Snippets from /var/log/syslog:

  Plugging in, 3.2:

  Jun 20 14:03:58 kip kernel: [  842.242811] usb 2-1.3: new high-speed USB device number 3 using ehci_hcd
  Jun 20 14:03:59 kip mtp-probe: checking bus 2, device 3: "/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3"
  Jun 20 14:03:59 kip mtp-probe: bus: 2, device: 3 was not an MTP device
  Jun 20 14:04:02 kip kernel: [  846.024169] smscore_set_device_mode: firmware download success: sms1xxx-hcw-55xxx-dvbt-02.fw
  Jun 20 14:04:02 kip kernel: [  846.027257] sms_ir_init: Allocating rc device
  Jun 20 14:04:02 kip kernel: [  846.027267] sms_ir_init: IR port 0, timeout 100 ms
  Jun 20 14:04:02 kip kernel: [  846.027272] sms_ir_init: Input device (IR) SMS IR (Hauppauge WinTV MiniStick) is set for key events
  Jun 20 14:04:04 kip kernel: [  847.849003] Registered IR keymap rc-hauppauge
  Jun 20 14:04:04 kip kernel: [  847.849150] input: SMS IR (Hauppauge WinTV MiniStick) as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3/rc/rc0/input16
  Jun 20 14:04:04 kip kernel: [  847.849203] rc0: SMS IR (Hauppauge WinTV MiniStick) as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3/rc/rc0
  Jun 20 14:04:04 kip kernel: [  847.904095] DVB: registering new adapter (Hauppauge WinTV MiniStick)
  Jun 20 14:04:04 kip kernel: [  847.905011] DVB: registering adapter 0 frontend 0 (Siano Mobile Digital MDTV Receiver)...
  Jun 20 14:04:04 kip kernel: [  847.907587] usbcore: registered new interface driver smsusb
  Jun 20 14:04:05 kip kernel: [  848.816127] IR NEC protocol handler initialized
  Jun 20 14:04:05 kip kernel: [  848.880985] IR RC5(x) protocol handler initialized
  Jun 20 14:04:05 kip kernel: [  848.915881] IR RC6 protocol handler initialized
  Jun 20 14:04:05 kip kernel: [  848.981980] IR JVC protocol handler initialized
  Jun 20 14:04:05 kip kernel: [  849.074603] IR Sony protocol handler initialized
  Jun 20 14:04:06 kip kernel: [  849.503278] IR SANYO protocol handler initialized
  Jun 20 14:04:06 kip kernel: [  850.046844] input: MCE IR Keyboard/Mouse (smsmdtv) as /devices/virtual/input/input17
  Jun 20 14:04:06 kip kernel: [  850.046953] IR MCE Keyboard/mouse protocol handler initialized
  Jun 20 14:04:06 kip kernel: [  850.130825] rc rc0: lirc_dev: driver ir-lirc-codec (smsmdtv) registered at minor = 0
  Jun 20 14:04:06 kip kernel: [  850.130829] IR LIRC bridge handler initialized
  Jun 20 14:04:07 kip lircd-0.9.0[2483]: lircd(default) ready, using /var/run/lirc/lircd
  Jun 20 14:07:51 kip wpa_supplicant[1249]: WPA: Group rekeying completed with 00:0f:66:4b:d0:29 [GTK=TKIP]
  Jun 20 14:08:45 kip lircd-0.9.0[2483]: accepted new client on /var/run/lirc/lircd
  Jun 20 14:08:45 kip lircd-0.9.0[2483]: removed client
  Jun 20 14:08:48 kip lircd-0.9.0[2483]: accepted new client on /var/run/lirc/lircd

  Plugging in, 3.4:

  Jun 20 12:41:51 kip kernel: [56968.821466] usb 2-1.3: new high-speed USB device number 3 using ehci_hcd
  Jun 20 12:41:51 kip mtp-probe: checking bus 2, device 3: "/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3"
  Jun 20 12:41:51 kip mtp-probe: bus: 2, device: 3 was not an MTP device
  Jun 20 12:41:52 kip kernel: [56969.771712] smscore_set_device_mode: firmware download success: sms1xxx-hcw-55xxx-dvbt-02.fw
  Jun 20 12:41:52 kip kernel: [56969.774971] sms_ir_init: Allocating rc device
  Jun 20 12:41:52 kip kernel: [56969.774982] sms_ir_init: IR port 0, timeout 100 ms
  Jun 20 12:41:52 kip kernel: [56969.774987] sms_ir_init: Input device (IR) SMS IR (Hauppauge WinTV MiniStick) is set for key events
  Jun 20 12:41:52 kip kernel: [56969.839568] Registered IR keymap rc-hauppauge
  Jun 20 12:41:52 kip kernel: [56969.839746] input: SMS IR (Hauppauge WinTV MiniStick) as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3/rc/rc0/input16
  Jun 20 12:41:52 kip kernel: [56969.839853] rc0: SMS IR (Hauppauge WinTV MiniStick) as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3/rc/rc0
  Jun 20 12:41:52 kip kernel: [56969.869111] IR NEC protocol handler initialized
  Jun 20 12:41:52 kip kernel: [56969.905160] DVB: registering new adapter (Hauppauge WinTV MiniStick)
  Jun 20 12:41:52 kip kernel: [56969.905954] DVB: registering adapter 0 frontend 0 (Siano Mobile Digital MDTV Receiver)...
  Jun 20 12:41:52 kip kernel: [56969.908307] usbcore: registered new interface driver smsusb
  Jun 20 12:41:52 kip kernel: [56969.925459] IR RC5(x) protocol handler initialized
  Jun 20 12:41:52 kip kernel: [56969.927605] IR RC6 protocol handler initialized
  Jun 20 12:41:52 kip kernel: [56969.934966] IR JVC protocol handler initialized
  Jun 20 12:41:52 kip kernel: [56969.947612] IR Sony protocol handler initialized
  Jun 20 12:41:52 kip kernel: [56969.956956] IR SANYO protocol handler initialized
  Jun 20 12:41:52 kip kernel: [56969.958762] input: MCE IR Keyboard/Mouse (smsmdtv) as /devices/virtual/input/input17
  Jun 20 12:41:52 kip kernel: [56969.958858] IR MCE Keyboard/mouse protocol handler initialized
  Jun 20 12:41:52 kip kernel: [56969.965675] lirc_dev: IR Remote Control driver registered, major 250 
  Jun 20 12:41:52 kip kernel: [56969.966256] rc rc0: lirc_dev: driver ir-lirc-codec (smsmdtv) registered at minor = 0
  Jun 20 12:41:52 kip kernel: [56969.966260] IR LIRC bridge handler initialized


  Unplugging, 3.4:

  Jun 20 13:48:04 kip kernel: [60935.264194] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 13:48:04 kip kernel: [60935.268310] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 13:48:04 kip kernel: [60935.272439] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 13:48:04 kip kernel: [60935.276578] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 13:48:04 kip kernel: [60935.280661] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 13:48:04 kip kernel: [60935.284782] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 13:48:04 kip kernel: [60935.288896] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 13:48:04 kip kernel: [60935.293016] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 13:48:04 kip kernel: [60935.297136] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 13:48:04 kip kernel: [60935.301251] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 13:48:04 kip kernel: [60935.305375] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 13:48:04 kip kernel: [60935.309488] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 13:48:04 kip kernel: [60935.313606] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 13:48:04 kip kernel: [60935.317721] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 13:48:04 kip kernel: [60935.321840] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 13:48:04 kip kernel: [60935.325959] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 13:48:04 kip kernel: [60935.330077] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 13:48:04 kip kernel: [60935.334197] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 13:48:04 kip kernel: [60935.338315] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 13:48:04 kip kernel: [60935.342430] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 13:48:04 kip kernel: [60935.346552] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 13:48:04 kip kernel: [60935.350666] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 13:48:04 kip kernel: [60935.354784] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 13:48:04 kip kernel: [60935.358907] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 13:48:04 kip kernel: [60935.363020] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 13:48:04 kip kernel: [60935.367139] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 13:48:04 kip kernel: [60935.371256] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 13:48:04 kip kernel: [60935.375373] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 13:48:04 kip kernel: [60935.379491] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 13:48:04 kip kernel: [60935.383609] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 13:48:04 kip kernel: [60935.387727] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 13:48:04 kip kernel: [60935.391828] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 13:48:04 kip kernel: [60935.395963] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 13:48:04 kip kernel: [60935.400080] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 13:48:04 kip kernel: [60935.404201] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 13:48:04 kip kernel: [60935.408317] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 13:48:04 kip kernel: [60935.412438] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 13:48:04 kip kernel: [60935.416555] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 13:48:04 kip kernel: [60935.416686] usb 2-1.3: USB disconnect, device number 3
  Jun 20 13:48:04 kip kernel: [60935.416927] smsusb_onresponse: line: 72: error, urb status -108 (-ESHUTDOWN), 0 bytes
  Jun 20 13:48:04 kip kernel: [60935.416932] smsusb_onresponse: line: 72: error, urb status -108 (-ESHUTDOWN), 0 bytes
  Jun 20 13:48:04 kip kernel: [60935.416937] smsusb_onresponse: line: 72: error, urb status -108 (-ESHUTDOWN), 0 bytes
  Jun 20 13:48:04 kip kernel: [60935.416941] smsusb_onresponse: line: 72: error, urb status -108 (-ESHUTDOWN), 0 bytes
  Jun 20 13:48:04 kip kernel: [60935.416945] smsusb_onresponse: line: 72: error, urb status -108 (-ESHUTDOWN), 0 bytes
  Jun 20 13:48:04 kip kernel: [60935.416950] smsusb_onresponse: line: 72: error, urb status -108 (-ESHUTDOWN), 0 bytes
  Jun 20 13:48:04 kip kernel: [60935.416954] smsusb_onresponse: line: 72: error, urb status -108 (-ESHUTDOWN), 0 bytes
  Jun 20 13:48:04 kip kernel: [60935.416958] smsusb_onresponse: line: 72: error, urb status -108 (-ESHUTDOWN), 0 bytes
  Jun 20 13:48:04 kip kernel: [60935.416962] smsusb_onresponse: line: 72: error, urb status -108 (-ESHUTDOWN), 0 bytes
  Jun 20 13:48:04 kip kernel: [60935.416967] smsusb_onresponse: line: 72: error, urb status -108 (-ESHUTDOWN), 0 bytes
  Jun 20 13:48:05 kip kernel: [60935.437903] BUG: unable to handle kernel NULL pointer dereference at 0000000000000050
  Jun 20 13:48:05 kip kernel: [60935.439682] IP: [<ffffffffa069a5b7>] show_protocols+0xf7/0x110 [rc_core]
  Jun 20 13:48:05 kip kernel: [60935.441354] PGD 12fffe067 PUD 12dc1a067 PMD 0 
  Jun 20 13:48:05 kip kernel: [60935.443000] Oops: 0000 [#1] SMP 
  Jun 20 13:48:05 kip kernel: [60935.444621] CPU 0 
  Jun 20 13:48:05 kip kernel: [60935.444638] Modules linked in: ir_lirc_codec lirc_dev ir_mce_kbd_decoder ir_sanyo_decoder ir_sony_decoder ir_jvc_decoder ir_rc6_decoder ir_rc5_decoder smsdvb dvb_core ir_nec_decoder rc_hauppauge smsusb smsmdtv rc_core btrfs zlib_deflate libcrc32c ufs qnx4 hfsplus hfs minix ntfs vfat msdos fat jfs xfs reiserfs ext2 parport_pc ppdev binfmt_misc dm_crypt snd_hda_codec_hdmi snd_hda_codec_idt snd_hda_intel uvcvideo snd_hda_codec videobuf2_core snd_hwdep snd_pcm videodev videobuf2_vmalloc videobuf2_memops snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device snd arc4 joydev hp_accel iwlwifi psmouse tpm_infineon mei(C) coretemp lis3lv02d soundcore mac80211 cfg80211 intel_ips tpm_tis serio_raw snd_page_alloc microcode mac_hid input_polldev hp_wmi sparse_keymap lp parport firewire_ohci firewire_core sdhci_pci crc_itu_t sdhci i915 wmi drm_kms_helper drm e1000e i2c_algo_bit video
  Jun 20 13:48:05 kip kernel: [60935.457637] 
  Jun 20 13:48:05 kip kernel: [60935.459630] Pid: 4514, comm: cat Tainted: G         C   3.4.0-030400-generic #201205210521 Hewlett-Packard HP ProBook 6450b/146D
  Jun 20 13:48:05 kip kernel: [60935.461720] RIP: 0010:[<ffffffffa069a5b7>]  [<ffffffffa069a5b7>] show_protocols+0xf7/0x110 [rc_core]
  Jun 20 13:48:05 kip kernel: [60935.463806] RSP: 0018:ffff880130759e08  EFLAGS: 00010202
  Jun 20 13:48:05 kip kernel: [60935.465883] RAX: 0000000000000000 RBX: ffff88012e48b000 RCX: ffffffffa069a4c0
  Jun 20 13:48:05 kip kernel: [60935.467980] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff88012e48b2f0
  Jun 20 13:48:05 kip kernel: [60935.470078] RBP: ffff880130759e48 R08: 0000000000000000 R09: 000000000000253a
  Jun 20 13:48:05 kip kernel: [60935.472207] R10: 00007fff66f62030 R11: 0000000000000000 R12: ffff880036458c40
  Jun 20 13:48:05 kip kernel: [60935.474338] R13: ffffffff81856860 R14: ffff88012e48b010 R15: ffff88012dc19000
  Jun 20 13:48:05 kip kernel: [60935.476503] FS:  00007ff8f383e700(0000) GS:ffff880137c00000(0000) knlGS:0000000000000000
  Jun 20 13:48:05 kip kernel: [60935.478722] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  Jun 20 13:48:05 kip kernel: [60935.480966] CR2: 0000000000000050 CR3: 000000012f4f4000 CR4: 00000000000007f0
  Jun 20 13:48:05 kip kernel: [60935.483253] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
  Jun 20 13:48:05 kip kernel: [60935.485558] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
  Jun 20 13:48:05 kip kernel: [60935.487865] Process cat (pid: 4514, threadinfo ffff880130758000, task ffff880036462dc0)
  Jun 20 13:48:05 kip kernel: [60935.490201] Stack:
  Jun 20 13:48:05 kip kernel: [60935.492602]  ffff880130759e58 ffff88012e48b2f0 0000000000000000 ffffffffa069e160
  Jun 20 13:48:05 kip kernel: [60935.495027]  ffff880036458c40 ffffffff81856860 ffff88012e48b010 ffff88006d2f5e00
  Jun 20 13:48:05 kip kernel: [60935.497478]  ffff880130759e78 ffffffff8140b5c7 ffff880130759e68 ffffffff8112670e
  Jun 20 13:48:05 kip kernel: [60935.499962] Call Trace:
  Jun 20 13:48:05 kip kernel: [60935.502430]  [<ffffffff8140b5c7>] dev_attr_show+0x27/0x50
  Jun 20 13:48:05 kip kernel: [60935.504900]  [<ffffffff8112670e>] ? __get_free_pages+0xe/0x40
  Jun 20 13:48:05 kip kernel: [60935.507379]  [<ffffffff811f48ab>] fill_read_buffer+0x6b/0xf0
  Jun 20 13:48:05 kip kernel: [60935.509863]  [<ffffffff811f49d0>] sysfs_read_file+0xa0/0xb0
  Jun 20 13:48:05 kip kernel: [60935.512341]  [<ffffffff81184285>] vfs_read+0xc5/0x190
  Jun 20 13:48:05 kip kernel: [60935.514799]  [<ffffffff81184451>] sys_read+0x51/0x90
  Jun 20 13:48:05 kip kernel: [60935.517279]  [<ffffffff81674e69>] system_call_fastpath+0x16/0x1b
  Jun 20 13:48:05 kip kernel: [60935.519785] Code: 24 01 4c 29 f8 48 83 c4 18 5b 41 5c 41 5d 41 5e 41 5f c9 c3 48 8b 93 28 d2 69 a0 48 c7 c6 ea d2 69 a0 eb a4 48 8b 83 18 03 00 00 <4c> 8b 68 50 e8 a0 12 00 00 49 89 c6 e9 53 ff ff ff 0f 1f 84 00 
  Jun 20 13:48:05 kip kernel: [60935.525398] RIP  [<ffffffffa069a5b7>] show_protocols+0xf7/0x110 [rc_core]
  Jun 20 13:48:05 kip kernel: [60935.528232]  RSP <ffff880130759e08>
  Jun 20 13:48:05 kip kernel: [60935.531064] CR2: 0000000000000050
  Jun 20 13:48:05 kip kernel: [60935.596972] ---[ end trace caead8062106f2dc ]---

  
  Unplugging, 3.2:

  Jun 20 20:44:18 kip kernel: [ 3692.670295] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 20:44:18 kip kernel: [ 3692.674390] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 20:44:18 kip kernel: [ 3692.678493] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 20:44:18 kip kernel: [ 3692.682604] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 20:44:18 kip kernel: [ 3692.686714] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 20:44:18 kip kernel: [ 3692.690854] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 20:44:18 kip kernel: [ 3692.694957] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 20:44:18 kip kernel: [ 3692.699071] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 20:44:18 kip kernel: [ 3692.703184] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 20:44:18 kip kernel: [ 3692.707304] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 20:44:18 kip kernel: [ 3692.711430] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 20:44:18 kip kernel: [ 3692.715546] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 20:44:18 kip kernel: [ 3692.719653] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 20:44:18 kip kernel: [ 3692.723772] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 20:44:18 kip kernel: [ 3692.727893] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 20:44:18 kip kernel: [ 3692.732013] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 20:44:18 kip kernel: [ 3692.736130] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 20:44:18 kip kernel: [ 3692.740246] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 20:44:18 kip kernel: [ 3692.744375] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 20:44:18 kip kernel: [ 3692.748485] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 20:44:18 kip kernel: [ 3692.752600] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 20:44:18 kip kernel: [ 3692.756714] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 20:44:18 kip kernel: [ 3692.760848] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 20:44:18 kip kernel: [ 3692.764970] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 20:44:18 kip kernel: [ 3692.769072] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 20:44:18 kip kernel: [ 3692.773169] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 20:44:18 kip kernel: [ 3692.777312] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 20:44:18 kip kernel: [ 3692.781429] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 20:44:18 kip kernel: [ 3692.785544] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 20:44:18 kip kernel: [ 3692.789659] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 20:44:18 kip kernel: [ 3692.793789] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 20:44:18 kip kernel: [ 3692.797901] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 20:44:18 kip kernel: [ 3692.802014] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 20:44:18 kip kernel: [ 3692.806133] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes
  Jun 20 20:44:18 kip kernel: [ 3692.808142] usb 2-1.3: USB disconnect, device number 3
  Jun 20 20:44:18 kip kernel: [ 3692.808257] smsusb_onresponse: line: 72: error, urb status -108 (-ESHUTDOWN), 0 bytes
  Jun 20 20:44:18 kip kernel: [ 3692.808264] smsusb_onresponse: line: 72: error, urb status -108 (-ESHUTDOWN), 0 bytes
  Jun 20 20:44:18 kip kernel: [ 3692.808268] smsusb_onresponse: line: 72: error, urb status -108 (-ESHUTDOWN), 0 bytes
  Jun 20 20:44:18 kip kernel: [ 3692.808272] smsusb_onresponse: line: 72: error, urb status -108 (-ESHUTDOWN), 0 bytes
  Jun 20 20:44:18 kip kernel: [ 3692.808277] smsusb_onresponse: line: 72: error, urb status -108 (-ESHUTDOWN), 0 bytes
  Jun 20 20:44:18 kip kernel: [ 3692.808281] smsusb_onresponse: line: 72: error, urb status -108 (-ESHUTDOWN), 0 bytes
  Jun 20 20:44:18 kip kernel: [ 3692.808285] smsusb_onresponse: line: 72: error, urb status -108 (-ESHUTDOWN), 0 bytes
  Jun 20 20:44:18 kip kernel: [ 3692.808289] smsusb_onresponse: line: 72: error, urb status -108 (-ESHUTDOWN), 0 bytes
  Jun 20 20:44:18 kip kernel: [ 3692.808293] smsusb_onresponse: line: 72: error, urb status -108 (-ESHUTDOWN), 0 bytes
  Jun 20 20:44:18 kip kernel: [ 3692.808298] smsusb_onresponse: line: 72: error, urb status -108 (-ESHUTDOWN), 0 bytes
  Jun 20 20:44:18 kip kernel: [ 3693.030853] BUG: unable to handle kernel NULL pointer dereference at 0000000000000050
  Jun 20 20:44:18 kip kernel: [ 3693.033573] IP: [<ffffffffa02e1597>] show_protocols+0xf7/0x120 [rc_core]
  Jun 20 20:44:18 kip kernel: [ 3693.034994] PGD 366f6067 PUD 366f7067 PMD 0 
  Jun 20 20:44:18 kip kernel: [ 3693.036448] Oops: 0000 [#1] SMP 
  Jun 20 20:44:18 kip kernel: [ 3693.037845] CPU 3 
  Jun 20 20:44:18 kip kernel: [ 3693.037861] Modules linked in: nls_utf8 isofs parport_pc ppdev binfmt_misc dm_crypt snd_hda_codec_hdmi snd_hda_codec_idt snd_hda_intel smsdvb dvb_core snd_hda_codec snd_hwdep rc_hauppauge arc4 snd_pcm ir_lirc_codec lirc_dev ir_mce_kbd_decoder snd_seq_midi ir_sony_decoder ir_jvc_decoder snd_rawmidi snd_seq_midi_event ir_rc6_decoder snd_seq ir_rc5_decoder ir_nec_decoder snd_timer snd_seq_device uvcvideo videodev v4l2_compat_ioctl32 smsusb smsmdtv rc_core snd tpm_infineon iwlwifi mac80211 psmouse soundcore snd_page_alloc intel_ips joydev cfg80211 mei(C) serio_raw hp_wmi sparse_keymap mac_hid tpm_tis hp_accel lis3lv02d input_polldev lp parport firewire_ohci firewire_core crc_itu_t e1000e sdhci_pci sdhci i915 drm_kms_helper drm wmi i2c_algo_bit video
  Jun 20 20:44:18 kip kernel: [ 3693.047962] 
  Jun 20 20:44:18 kip kernel: [ 3693.049836] Pid: 21816, comm: cat Tainted: G         C   3.2.0-26-generic #41-Ubuntu Hewlett-Packard HP ProBook 6450b/146D
  Jun 20 20:44:18 kip kernel: [ 3693.051834] RIP: 0010:[<ffffffffa02e1597>]  [<ffffffffa02e1597>] show_protocols+0xf7/0x120 [rc_core]
  Jun 20 20:44:18 kip kernel: [ 3693.053888] RSP: 0018:ffff88003672fe08  EFLAGS: 00010202
  Jun 20 20:44:18 kip kernel: [ 3693.055922] RAX: 0000000000000000 RBX: ffff88012b61dc00 RCX: 0000000000000001
  Jun 20 20:44:18 kip kernel: [ 3693.057980] RDX: ffff88003672ffd8 RSI: ffffffffa02e5180 RDI: ffff88012b61ded0
  Jun 20 20:44:18 kip kernel: [ 3693.060024] RBP: ffff88003672fe48 R08: 0000000000000000 R09: 000000000007d047
  Jun 20 20:44:18 kip kernel: [ 3693.062099] R10: 0000000000000002 R11: 0000000000000000 R12: ffff88012dde55a0
  Jun 20 20:44:18 kip kernel: [ 3693.064154] R13: ffffffff81856ec0 R14: ffff88012b61dc10 R15: ffff880082c7c000
  Jun 20 20:44:18 kip kernel: [ 3693.066210] FS:  00007ff53c3bd700(0000) GS:ffff880137cc0000(0000) knlGS:0000000000000000
  Jun 20 20:44:18 kip kernel: [ 3693.068303] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  Jun 20 20:44:18 kip kernel: [ 3693.070391] CR2: 0000000000000050 CR3: 0000000082e44000 CR4: 00000000000006e0
  Jun 20 20:44:18 kip kernel: [ 3693.072483] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
  Jun 20 20:44:18 kip kernel: [ 3693.074606] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
  Jun 20 20:44:18 kip kernel: [ 3693.076723] Process cat (pid: 21816, threadinfo ffff88003672e000, task ffff8801134f44d0)
  Jun 20 20:44:18 kip kernel: [ 3693.078867] Stack:
  Jun 20 20:44:18 kip kernel: [ 3693.081011]  0000000000000000 ffff88012b61ded0 0000000000000000 ffffffffa02e5180
  Jun 20 20:44:18 kip kernel: [ 3693.083233]  ffff88012dde55a0 ffffffff81856ec0 ffff88012b61dc10 ffff88012df5a300
  Jun 20 20:44:18 kip kernel: [ 3693.085494]  ffff88003672fe78 ffffffff813f2430 ffff88003672fe68 ffffffff8111bf6e
  Jun 20 20:44:18 kip kernel: [ 3693.087761] Call Trace:
  Jun 20 20:44:18 kip kernel: [ 3693.090031]  [<ffffffff813f2430>] dev_attr_show+0x20/0x60
  Jun 20 20:44:18 kip kernel: [ 3693.092328]  [<ffffffff8111bf6e>] ? __get_free_pages+0xe/0x40
  Jun 20 20:44:18 kip kernel: [ 3693.094746]  [<ffffffff811ec706>] fill_read_buffer.isra.8+0x66/0xf0
  Jun 20 20:44:18 kip kernel: [ 3693.097109]  [<ffffffff811ec834>] sysfs_read_file+0xa4/0xc0
  Jun 20 20:44:18 kip kernel: [ 3693.099439]  [<ffffffff811780e0>] vfs_read+0xb0/0x180
  Jun 20 20:44:18 kip kernel: [ 3693.101770]  [<ffffffff811781fa>] sys_read+0x4a/0x90
  Jun 20 20:44:18 kip kernel: [ 3693.104063]  [<ffffffff81661fc2>] system_call_fastpath+0x16/0x1b
  Jun 20 20:44:18 kip kernel: [ 3693.106363] Code: c4 18 5b 41 5c 41 5d 41 5e 41 5f 5d c3 0f 1f 80 00 00 00 00 48 8b 53 08 48 c7 c6 da 42 2e a0 eb a0 0f 1f 00 48 8b 83 f8 02 00 00 <4c> 8b 68 50 e8 70 17 00 00 49 89 c6 e9 4c ff ff ff 48 c7 c0 ea 
  Jun 20 20:44:18 kip kernel: [ 3693.111527] RIP  [<ffffffffa02e1597>] show_protocols+0xf7/0x120 [rc_core]
  Jun 20 20:44:18 kip kernel: [ 3693.114140]  RSP <ffff88003672fe08>
  Jun 20 20:44:18 kip kernel: [ 3693.116736] CR2: 0000000000000050
  Jun 20 20:44:19 kip kernel: [ 3693.182705] ---[ end trace 01fa1809a0903a6b ]---
  Jun 20 20:44:19 kip lircd-0.9.0[972]: caught signal

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.2.0-26-generic 3.2.0-26.41
  ProcVersionSignature: Ubuntu 3.2.0-26.41-generic 3.2.19
  Uname: Linux 3.2.0-26-generic x86_64
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0.1-0ubuntu10
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  douglas    2248 F.... pulseaudio
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0xd4820000 irq 49'
     Mixer name	: 'Intel IbexPeak HDMI'
     Components	: 'HDA:111d7603,103c146d,00100202 HDA:80862804,80860101,00100000'
     Controls      : 37
     Simple ctrls  : 13
  Date: Thu Jun 21 10:05:43 2012
  HibernationDevice: RESUME=UUID=a7c4ecf7-3db7-4173-a9c1-e92d5611f9b0
  InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100427.1)
  Lsusb:
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 003: ID 0461:4db6 Primax Electronics, Ltd
  MachineType: Hewlett-Packard HP ProBook 6450b
  ProcEnviron:
   TERM=xterm
   PATH=(custom, user)
   LANG=en_NZ.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-26-generic root=UUID=5fe5322d-7738-43bb-b84d-2ddffa20681f ro pcie_aspm=force
  RelatedPackageVersions:
   linux-restricted-modules-3.2.0-26-generic N/A
   linux-backports-modules-3.2.0-26-generic  N/A
   linux-firmware                            1.79
  SourcePackage: linux
  StagingDrivers: mei
  UpgradeStatus: Upgraded to precise on 2012-05-09 (42 days ago)
  dmi.bios.date: 06/25/2010
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: 68CDE Ver. F.01
  dmi.board.name: 146D
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: KBC Version 73.11
  dmi.chassis.asset.tag: CNU0310FGJ
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.modalias: dmi:bvnHewlett-Packard:bvr68CDEVer.F.01:bd06/25/2010:svnHewlett-Packard:pnHPProBook6450b:pvr:rvnHewlett-Packard:rn146D:rvrKBCVersion73.11:cvnHewlett-Packard:ct10:cvr:
  dmi.product.name: HP ProBook 6450b
  dmi.sys.vendor: Hewlett-Packard

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