[  251.376128] CE: hpet increasing min_delta_ns to 15000 nsec                                                                            
[ 1178.384127] CE: hpet increasing min_delta_ns to 22500 nsec                                                                            
[ 1438.820252] BUG: unable to handle kernel NULL pointer dereference at 0000000000000002                                                 
[ 1438.820264] IP: [<ffffffff805375f7>] usbdev_read+0x107/0x1f0                                                                          
[ 1438.820280] PGD 139522067 PUD 13a131067 PMD 0                                                                                         
[ 1438.820288] Oops: 0000 [#1] SMP                                                                                                       
[ 1438.820294] last sysfs file: /sys/devices/pci0000:00/0000:00:1c.1/0000:03:00.0/rfkill/rfkill1/state                                   
[ 1438.820301] Dumping ftrace buffer:                                                                                                    
[ 1438.820306]    (ftrace buffer empty)                                                                                                  
[ 1438.820309] CPU 1                                                                                                                     
[ 1438.820313] Modules linked in: binfmt_misc ppdev bridge stp bnep input_polldev btusb lp parport joydev arc4 snd_hda_intel ecb snd_pcm_oss snd_mixer_oss snd_pcm iwlagn snd_seq_dummy iwlcore snd_seq_oss pcmcia mac80211 thinkpad_acpi snd_seq_midi snd_rawmidi snd_seq_midi_event led_class psmouse snd_seq snd_timer snd_seq_device ricoh_mmc pcspkr sdhci_pci sdhci serio_raw nvram yenta_socket rsrc_nonstatic pcmcia_core intel_agp snd soundcore snd_page_alloc iTCO_wdt iTCO_vendor_support video output cfg80211 nvidia(P) sha256_generic aes_x86_64 aes_generic cbc usbhid ohci1394 ieee1394 e1000e dm_crypt fbcon tileblit font bitblit softcursor
[ 1438.820409] Pid: 3189, comm: hald-addon-usb- Tainted: P           2.6.28-11-generic #42-Ubuntu
[ 1438.820414] RIP: 0010:[<ffffffff805375f7>]  [<ffffffff805375f7>] usbdev_read+0x107/0x1f0
[ 1438.820423] RSP: 0018:ffff88013a153e98  EFLAGS: 00010246
[ 1438.820428] RAX: ffff88013a153f48 RBX: 0000000000000000 RCX: ffff88013a153f48
[ 1438.820432] RDX: 0000000000000008 RSI: 0000000000000282 RDI: 0000000000000012
[ 1438.820437] RBP: ffff88013a153f08 R08: 0000000000000028 R09: 0000000000000000
[ 1438.820441] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000012
[ 1438.820445] R13: ffff880139035800 R14: 0000000000000000 R15: 0000000000000008
[ 1438.820451] FS:  00007f8c41007700(0000) GS:ffff88013b803c80(0000) knlGS:0000000000000000
[ 1438.820456] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1438.820460] CR2: 0000000000000002 CR3: 000000013a0a3000 CR4: 00000000000006a0
[ 1438.820465] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1438.820469] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 1438.820475] Process hald-addon-usb- (pid: 3189, threadinfo ffff88013a152000, task ffff88013a112cc0)
[ 1438.820479] Stack:
[ 1438.820482]  ffff8800bf946c00 ffff88013a153f48 00007fff4902ab80 ffff8801390359e8
[ 1438.820490]  ffff88013a153ec8 ffffffff803f5ee3 ffff88013a153ed8 ffffffff803d07d1
[ 1438.820499]  ffff88013a153f08 0000000000000008 ffff8800bf946c00 ffff88013a153f48
[ 1438.820508] Call Trace:
[ 1438.820512]  [<ffffffff803f5ee3>] ? apparmor_file_permission+0x23/0x30
[ 1438.820523]  [<ffffffff803d07d1>] ? security_file_permission+0x11/0x20
[ 1438.820533]  [<ffffffff802e8148>] vfs_read+0xc8/0x130
[ 1438.820541]  [<ffffffff802e82a0>] sys_read+0x50/0x90
[ 1438.820548]  [<ffffffff8021253a>] system_call_fastpath+0x16/0x1b
[ 1438.820557] Code: 84 41 0f b6 85 09 03 00 00 41 83 c6 01 44 39 f0 0f 8e 6f ff ff ff 4c 89 df 49 8b 85 20 04 00 00 4d 63 ce 4e 8b 14 c8 48 8b 45 98 <45> 0f b7 42 02 48 8b 08 44 89 c0 4c 8d 1c 07 4c 39 d9 7d bd 49
[ 1438.820629] RIP  [<ffffffff805375f7>] usbdev_read+0x107/0x1f0
[ 1438.820637]  RSP <ffff88013a153e98>
[ 1438.820640] CR2: 0000000000000002
[ 1438.820645] ---[ end trace 874f91fa9bbd71cb ]---