[11284.996424] sd 9:0:0:0: timing out command, waited 180s
[11284.996443] end_request: I/O error, dev sdb, sector 0
[11405.410969] INFO: task mount.ntfs:4347 blocked for more than 120 seconds.
[11405.410982]       Tainted: G           O  3.16.0-4-amd64 #1
[11405.410987] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[11405.410993] mount.ntfs      D ffff8801dce37708     0  4347      1 0x00000000
[11405.411005]  ffff8801dce372b0 0000000000000086 0000000000013280 ffff88014e2c7fd8
[11405.411015]  0000000000013280 ffff8801dce372b0 ffff88014e2c7ee8 ffff88014e2c7e80
[11405.411021]  ffff88014e2c7ee0 ffff8801dce372b0 0000000000021000 00007fff03b2ca00
[11405.411026] Call Trace:
[11405.411043]  [<ffffffff8150b3b9>] ? schedule_timeout+0x229/0x2a0
[11405.411053]  [<ffffffff8127c40f>] ? __blk_run_queue+0x2f/0x40
[11405.411064]  [<ffffffff812809c3>] ? blk_queue_bio+0x323/0x360
[11405.411075]  [<ffffffff8150c8c8>] ? wait_for_completion+0xa8/0x120
[11405.411084]  [<ffffffff81096ad0>] ? wake_up_state+0x10/0x10
[11405.411094]  [<ffffffff812767d0>] ? submit_bio_wait+0x50/0x60
[11405.411106]  [<ffffffff81281c45>] ? blkdev_issue_flush+0x55/0x80
[11405.411117]  [<ffffffff811dac7f>] ? blkdev_fsync+0x2f/0x40
[11405.411123]  [<ffffffff811d4c9b>] ? do_fsync+0x4b/0x70
[11405.411128]  [<ffffffff811d4f0c>] ? SyS_fsync+0xc/0x10
[11405.411135]  [<ffffffff8150f72d>] ? system_call_fast_compare_end+0x10/0x15
[11465.087732] sd 9:0:0:0: timing out command, waited 180s
[11465.087750] end_request: I/O error, dev sdb, sector 0
[11469.352235] sd 9:0:0:0: [sdb] Unhandled sense code
[11469.352241] sd 9:0:0:0: [sdb]  
[11469.352243] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[11469.352245] sd 9:0:0:0: [sdb]  
[11469.352246] Sense Key : Medium Error [current] 
[11469.352249] sd 9:0:0:0: [sdb]  
[11469.352251] Add. Sense: Unrecovered read error
[11469.352253] sd 9:0:0:0: [sdb] CDB: 
[11469.352254] Read(10): 28 00 15 d5 2a 83 00 00 01 00
[11469.352260] end_request: critical medium error, dev sdb, sector 2930332696
[11469.352264] quiet_error: 20 callbacks suppressed
[11469.352266] Buffer I/O error on device sdb1, logical block 366291331
[11645.521753] INFO: task ntfsfix:7840 blocked for more than 120 seconds.
[11645.521759]       Tainted: G           O  3.16.0-4-amd64 #1
[11645.521761] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[11645.521762] ntfsfix         D ffff8800a0ccbac8     0  7840   7834 0x00000000
[11645.521766]  ffff8800a0ccb670 0000000000000082 0000000000013280 ffff880143813fd8
[11645.521768]  0000000000013280 ffff8800a0ccb670 ffff880143813ee8 ffff880143813e80
[11645.521770]  ffff880143813ee0 ffff8800a0ccb670 0000000000001000 0000000000000000
[11645.521772] Call Trace:
[11645.521781]  [<ffffffff8150b3b9>] ? schedule_timeout+0x229/0x2a0
[11645.521784]  [<ffffffff8127c40f>] ? __blk_run_queue+0x2f/0x40
[11645.521787]  [<ffffffff812809c3>] ? blk_queue_bio+0x323/0x360
[11645.521790]  [<ffffffff8150c8c8>] ? wait_for_completion+0xa8/0x120
[11645.521793]  [<ffffffff81096ad0>] ? wake_up_state+0x10/0x10
[11645.521797]  [<ffffffff812767d0>] ? submit_bio_wait+0x50/0x60
[11645.521799]  [<ffffffff81281c45>] ? blkdev_issue_flush+0x55/0x80
[11645.521803]  [<ffffffff811dac7f>] ? blkdev_fsync+0x2f/0x40
[11645.521806]  [<ffffffff811d4c9b>] ? do_fsync+0x4b/0x70
[11645.521808]  [<ffffffff811d4f0c>] ? SyS_fsync+0xc/0x10
[11645.521810]  [<ffffffff8150f72d>] ? system_call_fast_compare_end+0x10/0x15
[11649.852966] sd 9:0:0:0: timing out command, waited 180s
[11649.852979] end_request: I/O error, dev sdb, sector 0