[   50.874999] init: plymouth-upstart-bridge main process ended, respawning
[   50.899441] init: plymouth-upstart-bridge main process ended, respawning
[   64.838035] usb 1-4: reset high-speed USB device number 2 using ehci-pci
[   95.814048] usb 1-4: reset high-speed USB device number 2 using ehci-pci
[  126.918049] usb 1-4: reset high-speed USB device number 2 using ehci-pci
[  157.894035] usb 1-4: reset high-speed USB device number 2 using ehci-pci
[  188.870040] usb 1-4: reset high-speed USB device number 2 using ehci-pci
[  188.987250] sd 4:0:0:0: [sdc] Unhandled error code
[  188.987257] sd 4:0:0:0: [sdc]  
[  188.987260] Result: hostbyte=DID_ABORT driverbyte=DRIVER_OK
[  188.987262] sd 4:0:0:0: [sdc] CDB: 
[  188.987264] Read(10): 28 00 00 00 00 00 00 00 08 00 00 00
[  188.987272] end_request: I/O error, dev sdc, sector 0
[  188.987276] quiet_error: 15 callbacks suppressed
[  188.987278] Buffer I/O error on device sdc, logical block 0
[  219.846039] usb 1-4: reset high-speed USB device number 2 using ehci-pci
[  241.690053] INFO: task hdparm:1884 blocked for more than 120 seconds.
[  241.690060]       Not tainted 3.13.0-52-lowlatency #86-Ubuntu
[  241.690061] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  241.690063] hdparm          D 00000000     0  1884   1867 0x00000000
[  241.690068]  ec87bd4c 00000082 ec854380 00000000 c19a3c80 c1a983c0 da5eb650 00000013
[  241.690073]  c1a983c0 ec848d10 ec848000 f7bd83c0 000290ae 00000000 00000001 00000000
[  241.690077]  00000000 c1b79f4c 00000040 ec87bdb8 c19a470c c19a3ca8 ffffffff f7bd8f10
[  241.690082] Call Trace:
[  241.690092]  [<c12dff60>] ? get_disk+0x30/0x50
[  241.690097]  [<c165e98a>] schedule_preempt_disabled+0x2a/0x70
[  241.690101]  [<c166012d>] __mutex_lock_slowpath+0x12d/0x1a9
[  241.690104]  [<c165f535>] mutex_lock+0x15/0x30
[  241.690108]  [<c11b0d18>] __blkdev_get+0x58/0x3e0
[  241.690111]  [<c11b1370>] ? blkdev_get_by_dev+0x40/0x40
[  241.690114]  [<c11b120c>] blkdev_get+0x16c/0x290
[  241.690117]  [<c11b1370>] ? blkdev_get_by_dev+0x40/0x40
[  241.690120]  [<c11af750>] ? bdev_test+0x20/0x20
[  241.690123]  [<c11b1370>] ? blkdev_get_by_dev+0x40/0x40
[  241.690126]  [<c11b13c2>] blkdev_open+0x52/0x70
[  241.690130]  [<c117af70>] do_dentry_open+0x1e0/0x270
[  241.690133]  [<c1186830>] ? __inode_permission+0x40/0xa0
[  241.690136]  [<c11b1370>] ? blkdev_get_by_dev+0x40/0x40
[  241.690139]  [<c117b44c>] vfs_open+0x3c/0x50
[  241.690141]  [<c1189991>] do_last+0x4c1/0xf10
[  241.690144]  [<c1188a0f>] ? link_path_walk+0x5f/0x6d0
[  241.690149]  [<c12b0aba>] ? apparmor_file_alloc_security+0x4a/0x160
[  241.690152]  [<c118ad70>] path_openat+0xb0/0x540
[  241.690160]  [<c118bdb1>] do_filp_open+0x31/0x80
[  241.690164]  [<c117cbe5>] do_sys_open+0x115/0x270
[  241.690168]  [<c1018f77>] ? init_fpu+0x77/0xa0
[  241.690172]  [<c1010000>] ? __switch_to+0x1b0/0x350
[  241.690175]  [<c117cd62>] SyS_open+0x22/0x30
[  241.690179]  [<c166810d>] sysenter_do_call+0x12/0x12
[  250.822036] usb 1-4: reset high-speed USB device number 2 using ehci-pci
[  281.926046] usb 1-4: reset high-speed USB device number 2 using ehci-pci
[  313.158033] usb 1-4: reset high-speed USB device number 2 using ehci-pci
[  331.076774] cfg80211: Calling CRDA to update world regulatory domain
[  331.148874] cfg80211: World regulatory domain updated:
[  331.148881] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[  331.148884] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[  331.148886] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[  331.148888] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
[  331.148890] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[  331.148891] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[  344.134034] usb 1-4: reset high-speed USB device number 2 using ehci-pci
[  361.690030] INFO: task kworker/u4:1:45 blocked for more than 120 seconds.
[  361.690037]       Not tainted 3.13.0-52-lowlatency #86-Ubuntu
[  361.690039] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  361.690041] kworker/u4:1    D 00000010     0    45      2 0x00000000
[  361.690051] Workqueue: events_unbound async_run_entry_fn
[  361.690053]  f36ebc64 00000046 ecba1700 00000010 00000001 c1a983c0 00859696 0000002c
[  361.690058]  c1a983c0 f693db70 f36fdb70 f7bd83c0 00000000 00000000 ecba1700 f36ebc5c
[  361.690062]  c10b4708 00ded136 00000000 00ffffff 00000017 6e370548 0002c0a4 8baebc15
[  361.690067] Call Trace:
[  361.690075]  [<c10b4708>] ? ktime_get_ts+0x48/0x140
[  361.690080]  [<c1124710>] ? filemap_fdatawait_range+0x140/0x140
[  361.690084]  [<c165e806>] io_schedule+0x86/0x100
[  361.690087]  [<c112471d>] sleep_on_page+0xd/0x20
[  361.690090]  [<c165eb81>] __wait_on_bit+0x51/0x70
[  361.690093]  [<c1124710>] ? filemap_fdatawait_range+0x140/0x140
[  361.690097]  [<c12e3520>] ? check_partition+0x210/0x210
[  361.690100]  [<c11245c6>] wait_on_page_bit+0x86/0x90
[  361.690103]  [<c1093130>] ? autoremove_wake_function+0x40/0x40
[  361.690106]  [<c1125609>] wait_on_page_read+0x39/0x50
[  361.690108]  [<c1125ae9>] read_cache_page+0x29/0x30
[  361.690112]  [<c11afde0>] ? blkdev_write_begin+0x40/0x40
[  361.690115]  [<c12e28e0>] read_dev_sector+0x30/0x70
[  361.690118]  [<c12e3520>] ? check_partition+0x210/0x210
[  361.690120]  [<c12e3578>] adfspart_check_ICS+0x58/0x2a0
[  361.690123]  [<c115ffff>] ? hugetlb_unreserve_pages+0x4f/0x90
[  361.690127]  [<c13031d3>] ? vsnprintf+0x193/0x3d0
[  361.690129]  [<c130349a>] ? snprintf+0x1a/0x20
[  361.690132]  [<c12e3520>] ? check_partition+0x210/0x210
[  361.690134]  [<c12e33f8>] check_partition+0xe8/0x210
[  361.690137]  [<c12e2fe9>] rescan_partitions+0x99/0x320
[  361.690141]  [<c12dff60>] ? get_disk+0x30/0x50
[  361.690145]  [<c14505ef>] ? scsi_device_get+0x2f/0x40
[  361.690149]  [<c113f498>] ? bdi_lock_two+0x38/0x40
[  361.690152]  [<c11b0026>] ? bdev_inode_switch_bdi+0xf6/0x130
[  361.690155]  [<c11afb15>] ? bd_set_size+0x75/0xd0
[  361.690158]  [<c11b0f9b>] __blkdev_get+0x2db/0x3e0
[  361.690162]  [<c11b120c>] blkdev_get+0x16c/0x290
[  361.690164]  [<c11af750>] ? bdev_test+0x20/0x20
[  361.690167]  [<c1411944>] ? put_device+0x14/0x20
[  361.690170]  [<c12e0d93>] add_disk+0x333/0x420
[  361.690175]  [<c14208bd>] ? __pm_runtime_use_autosuspend+0x4d/0x60
[  361.690178]  [<c14670e7>] sd_probe_async+0x117/0x1e0
[  361.690181]  [<c107c725>] async_run_entry_fn+0x35/0x140
[  361.690185]  [<c1084a6f>] ? wake_up_process+0x1f/0x40
[  361.690188]  [<c1070a11>] process_one_work+0x111/0x3c0
[  361.690192]  [<c106f0a5>] ? start_worker+0x25/0x30
[  361.690195]  [<c10713d5>] ? manage_workers.isra.28+0x1a5/0x250
[  361.690197]  [<c1071581>] worker_thread+0x101/0x340
[  361.690200]  [<c1071480>] ? manage_workers.isra.28+0x250/0x250
[  361.690204]  [<c1076951>] kthread+0xa1/0xc0
[  361.690206]  [<c1070000>] ? __queue_delayed_work+0x90/0x140
[  361.690211]  [<c1668077>] ret_from_kernel_thread+0x1b/0x28
[  361.690214]  [<c10768b0>] ? kthread_create_on_node+0x140/0x140
[  361.690243] INFO: task hdparm:1884 blocked for more than 120 seconds.
[  361.690245]       Not tainted 3.13.0-52-lowlatency #86-Ubuntu
[  361.690247] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  361.690248] hdparm          D 00000000     0  1884   1867 0x00000000
[  361.690251]  ec87bd4c 00000082 ec854380 00000000 c19a3c80 c1a983c0 da5eb650 00000013
[  361.690255]  c1a983c0 ec848d10 ec848000 f7bd83c0 000290ae 00000000 00000001 00000000
[  361.690259]  00000000 c1b79f4c 00000040 ec87bdb8 c19a470c c19a3ca8 ffffffff f7bd8f10
[  361.690263] Call Trace:
[  361.690267]  [<c12dff60>] ? get_disk+0x30/0x50
[  361.690270]  [<c165e98a>] schedule_preempt_disabled+0x2a/0x70
[  361.690274]  [<c166012d>] __mutex_lock_slowpath+0x12d/0x1a9
[  361.690276]  [<c165f535>] mutex_lock+0x15/0x30
[  361.690279]  [<c11b0d18>] __blkdev_get+0x58/0x3e0
[  361.690282]  [<c11b1370>] ? blkdev_get_by_dev+0x40/0x40
[  361.690285]  [<c11b120c>] blkdev_get+0x16c/0x290
[  361.690288]  [<c11b1370>] ? blkdev_get_by_dev+0x40/0x40
[  361.690291]  [<c11af750>] ? bdev_test+0x20/0x20
[  361.690294]  [<c11b1370>] ? blkdev_get_by_dev+0x40/0x40
[  361.690297]  [<c11b13c2>] blkdev_open+0x52/0x70
[  361.690301]  [<c117af70>] do_dentry_open+0x1e0/0x270
[  361.690304]  [<c1186830>] ? __inode_permission+0x40/0xa0
[  361.690307]  [<c11b1370>] ? blkdev_get_by_dev+0x40/0x40
[  361.690310]  [<c117b44c>] vfs_open+0x3c/0x50
[  361.690313]  [<c1189991>] do_last+0x4c1/0xf10
[  361.690315]  [<c1188a0f>] ? link_path_walk+0x5f/0x6d0
[  361.690320]  [<c12b0aba>] ? apparmor_file_alloc_security+0x4a/0x160
[  361.690323]  [<c118ad70>] path_openat+0xb0/0x540
[  361.690325]  [<c118bdb1>] do_filp_open+0x31/0x80
[  361.690329]  [<c117cbe5>] do_sys_open+0x115/0x270
[  361.690332]  [<c1018f77>] ? init_fpu+0x77/0xa0
[  361.690337]  [<c1010000>] ? __switch_to+0x1b0/0x350
[  361.690339]  [<c117cd62>] SyS_open+0x22/0x30
[  361.690342]  [<c166810d>] sysenter_do_call+0x12/0x12
[  375.110030] usb 1-4: reset high-speed USB device number 2 using ehci-pci
[  375.227268] sd 4:0:0:0: [sdc] Unhandled error code
[  375.227271] sd 4:0:0:0: [sdc]  
[  375.227273] Result: hostbyte=DID_ABORT driverbyte=DRIVER_OK
[  375.227275] sd 4:0:0:0: [sdc] CDB: 
[  375.227277] Read(10): 28 00 00 00 00 00 00 00 08 00 00 00
[  375.227285] end_request: I/O error, dev sdc, sector 0
[  375.227289] Buffer I/O error on device sdc, logical block 0
[  406.214035] usb 1-4: reset high-speed USB device number 2 using ehci-pci
[  437.190035] usb 1-4: reset high-speed USB device number 2 using ehci-pci
[  468.166030] usb 1-4: reset high-speed USB device number 2 using ehci-pci
[  481.690055] INFO: task hdparm:1884 blocked for more than 120 seconds.
[  481.690062]       Not tainted 3.13.0-52-lowlatency #86-Ubuntu
[  481.690064] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  481.690066] hdparm          D 00000000     0  1884   1867 0x00000000
[  481.690071]  ec87bd4c 00000082 ec854380 00000000 c19a3c80 c1a983c0 da5eb650 00000013
[  481.690076]  c1a983c0 ec848d10 ec848000 f7bd83c0 000290ae 00000000 00000001 00000000
[  481.690080]  00000000 c1b79f4c 00000040 ec87bdb8 c19a470c c19a3ca8 ffffffff f7bd8f10
[  481.690085] Call Trace:
[  481.690095]  [<c12dff60>] ? get_disk+0x30/0x50
[  481.690100]  [<c165e98a>] schedule_preempt_disabled+0x2a/0x70
[  481.690104]  [<c166012d>] __mutex_lock_slowpath+0x12d/0x1a9
[  481.690107]  [<c165f535>] mutex_lock+0x15/0x30
[  481.690111]  [<c11b0d18>] __blkdev_get+0x58/0x3e0
[  481.690114]  [<c11b1370>] ? blkdev_get_by_dev+0x40/0x40
[  481.690117]  [<c11b120c>] blkdev_get+0x16c/0x290
[  481.690120]  [<c11b1370>] ? blkdev_get_by_dev+0x40/0x40
[  481.690123]  [<c11af750>] ? bdev_test+0x20/0x20
[  481.690126]  [<c11b1370>] ? blkdev_get_by_dev+0x40/0x40
[  481.690129]  [<c11b13c2>] blkdev_open+0x52/0x70
[  481.690133]  [<c117af70>] do_dentry_open+0x1e0/0x270
[  481.690136]  [<c1186830>] ? __inode_permission+0x40/0xa0
[  481.690139]  [<c11b1370>] ? blkdev_get_by_dev+0x40/0x40
[  481.690142]  [<c117b44c>] vfs_open+0x3c/0x50
[  481.690144]  [<c1189991>] do_last+0x4c1/0xf10
[  481.690147]  [<c1188a0f>] ? link_path_walk+0x5f/0x6d0
[  481.690152]  [<c12b0aba>] ? apparmor_file_alloc_security+0x4a/0x160
[  481.690155]  [<c118ad70>] path_openat+0xb0/0x540
[  481.690157]  [<c118bdb1>] do_filp_open+0x31/0x80
[  481.690161]  [<c117cbe5>] do_sys_open+0x115/0x270
[  481.690165]  [<c1018f77>] ? init_fpu+0x77/0xa0
[  481.690169]  [<c1010000>] ? __switch_to+0x1b0/0x350
[  481.690171]  [<c117cd62>] SyS_open+0x22/0x30
[  481.690175]  [<c166810d>] sysenter_do_call+0x12/0x12
[  499.142037] usb 1-4: reset high-speed USB device number 2 using ehci-pci
[  530.118030] usb 1-4: reset high-speed USB device number 2 using ehci-pci