Another trial to rerproduce by running `sudo dd if=/dev/sdc bs=512k | pv > /dev/null `
[ 5038.082712] usb 2-3.2: new SuperSpeed USB device number 4 using xhci_hcd [ 5038.098605] usb 2-3.2: New USB device found, idVendor=357d, idProduct=7788 [ 5038.098609] usb 2-3.2: New USB device strings: Mfr=10, Product=11, SerialNumber=3 [ 5038.098612] usb 2-3.2: Product: USB to ATA/ATAPI Bridge [ 5038.098614] usb 2-3.2: Manufacturer: JMicron [ 5038.098617] usb 2-3.2: SerialNumber: 000012345678 [ 5038.099307] scsi host7: uas [ 5038.100812] scsi 7:0:0:0: Direct-Access HITACHI HTS723232L9SA60 0100 PQ: 0 ANSI: 6 [ 5038.103505] sd 7:0:0:0: Attached scsi generic sg2 type 0 [ 5038.104095] sd 7:0:0:0: [sdc] 625142448 512-byte logical blocks: (320 GB/298 GiB) [ 5038.104097] sd 7:0:0:0: [sdc] 4096-byte physical blocks [ 5038.107271] sd 7:0:0:0: [sdc] Write Protect is off [ 5038.107276] sd 7:0:0:0: [sdc] Mode Sense: 67 00 10 08 [ 5038.108506] sd 7:0:0:0: [sdc] Write cache: enabled, read cache: enabled, supports DPO and FUA [ 5038.138724] sdc: sdc1 sdc3 [ 5038.198344] sd 7:0:0:0: [sdc] Attached SCSI disk [ 5043.598011] EXT4-fs (dm-0): recovery complete [ 5043.598349] EXT4-fs (dm-0): mounted filesystem with ordered data mode. Opts: (null) [ 5843.599371] sd 7:0:0:0: [sdc] data cmplt err -71 uas-tag 2 inflight: CMD [ 5843.599377] sd 7:0:0:0: [sdc] CDB: [ 5843.599379] Read(10): 28 00 07 2e 29 08 00 01 00 00 [ 5843.602869] xhci_hcd 0000:00:14.0: ERROR Transfer event for disabled endpoint or incorrect stream ring [ 5843.602875] xhci_hcd 0000:00:14.0: @00000002112f5440 00000000 00000000 04000000 07078001 [ 5874.466888] sd 7:0:0:0: [sdc] uas_eh_abort_handler 0 uas-tag 2 inflight: CMD [ 5874.466894] sd 7:0:0:0: [sdc] CDB: [ 5874.466897] Read(10): 28 00 07 2e 29 08 00 01 00 00 [ 5874.466909] sd 7:0:0:0: [sdc] uas_eh_abort_handler 0 uas-tag 1 inflight: CMD IN [ 5874.466911] sd 7:0:0:0: [sdc] CDB: [ 5874.466912] Read(10): 28 00 07 2e 2a 08 00 01 00 00 [ 5874.467023] scsi host7: uas_eh_bus_reset_handler start [ 5874.612301] scsi host7: uas_post_reset: alloc streams error -19 after reset [ 5874.612553] usb 2-3.2: USB disconnect, device number 4 [ 5875.051447] blk_update_request: I/O error, dev sdc, sector 0 [ 5875.138449] sd 7:0:0:0: [sdc] Synchronizing SCSI cache [ 6001.747203] INFO: task kworker/0:1:8476 blocked for more than 120 seconds. [ 6001.747207] Tainted: P U W OE 3.19.0-9-generic #9-Ubuntu [ 6001.747207] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 6001.747209] kworker/0:1 D ffff880175a5fb58 0 8476 2 0x00000000 [ 6001.747216] Workqueue: usb_hub_wq hub_event [ 6001.747217] ffff880175a5fb58 ffff8800da884e80 0000000000014200 ffff880175a5ffd8 [ 6001.747219] 0000000000014200 ffffffff81c1a580 ffff8800da884e80 00000000ebb8eeb0 [ 6001.747220] ffff88016696d0f0 ffff88016696d0f4 ffff8800da884e80 00000000ffffffff [ 6001.747222] Call Trace: [ 6001.747227] [<ffffffff817c36c9>] schedule_preempt_disabled+0x29/0x70 [ 6001.747229] [<ffffffff817c5585>] __mutex_lock_slowpath+0x95/0x100 [ 6001.747231] [<ffffffff817c5613>] mutex_lock+0x23/0x40 [ 6001.747233] [<ffffffff815b3453>] usb_disconnect+0x53/0x2e0 [ 6001.747235] [<ffffffff815bce84>] ? usb_control_msg+0xd4/0x110 [ 6001.747237] [<ffffffff815b518c>] hub_port_connect+0x6c/0xa50 [ 6001.747239] [<ffffffff815af7a8>] ? hub_port_status+0xd8/0x120 [ 6001.747240] [<ffffffff815b5eb4>] port_event+0x344/0x7e0 [ 6001.747242] [<ffffffff815b655d>] hub_event+0x20d/0x400 [ 6001.747245] [<ffffffff8108eb48>] process_one_work+0x158/0x430 [ 6001.747246] [<ffffffff8108f5db>] worker_thread+0x5b/0x530 [ 6001.747248] [<ffffffff8108f580>] ? rescuer_thread+0x3a0/0x3a0 [ 6001.747250] [<ffffffff81094679>] kthread+0xc9/0xe0 [ 6001.747252] [<ffffffff810945b0>] ? kthread_create_on_node+0x1c0/0x1c0 [ 6001.747254] [<ffffffff817c7a3c>] ret_from_fork+0x7c/0xb0 [ 6001.747256] [<ffffffff810945b0>] ? kthread_create_on_node+0x1c0/0x1c0 [ 6001.747258] INFO: task umount:8799 blocked for more than 120 seconds. [ 6001.747259] Tainted: P U W OE 3.19.0-9-generic #9-Ubuntu [ 6001.747260] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 6001.747260] umount D ffff8801d4087c28 0 8799 1389 0x00000000 [ 6001.747262] ffff8801d4087c28 ffff88010c360000 0000000000014200 ffff8801d4087fd8 [ 6001.747264] 0000000000014200 ffffffff81c1a580 ffff88010c360000 ffff8801760fe050 [ 6001.747265] ffff8801d4087d68 7fffffffffffffff ffff8801d4087d60 ffff88010c360000 [ 6001.747266] Call Trace: [ 6001.747268] [<ffffffff817c3179>] schedule+0x29/0x70 [ 6001.747270] [<ffffffff817c673c>] schedule_timeout+0x20c/0x280 [ 6001.747272] [<ffffffff81385beb>] ? blk_queue_bio+0x36b/0x370 [ 6001.747274] [<ffffffff817c4b34>] wait_for_completion+0xa4/0x170 [ 6001.747276] [<ffffffff810a1c70>] ? wake_up_state+0x20/0x20 [ 6001.747279] [<ffffffff8137a60c>] submit_bio_wait+0x5c/0x70 [ 6001.747281] [<ffffffff81387851>] blkdev_issue_flush+0x61/0x90 [ 6001.747284] [<ffffffff8128c857>] ext4_sync_fs+0x127/0x1b0 [ 6001.747287] [<ffffffff81224c72>] sync_filesystem+0x82/0xc0 [ 6001.747290] [<ffffffff811f52c4>] generic_shutdown_super+0x34/0x100 [ 6001.747293] [<ffffffff811f56c7>] kill_block_super+0x27/0x80 [ 6001.747294] [<ffffffff811f5a09>] deactivate_locked_super+0x49/0x60 [ 6001.747295] [<ffffffff811f5e5c>] deactivate_super+0x6c/0x80 [ 6001.747298] [<ffffffff81213c53>] cleanup_mnt+0x43/0xa0 [ 6001.747299] [<ffffffff81213d02>] __cleanup_mnt+0x12/0x20 [ 6001.747301] [<ffffffff81092c44>] task_work_run+0xd4/0xf0 [ 6001.747304] [<ffffffff81015007>] do_notify_resume+0x97/0xb0 [ 6001.747306] [<ffffffff817c7d8f>] int_signal+0x12/0x17 [ 6121.781305] INFO: task kworker/0:1:8476 blocked for more than 120 seconds. [ 6121.781309] Tainted: P U W OE 3.19.0-9-generic #9-Ubuntu [ 6121.781310] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 6121.781311] kworker/0:1 D ffff880175a5fb58 0 8476 2 0x00000000 [ 6121.781319] Workqueue: usb_hub_wq hub_event [ 6121.781320] ffff880175a5fb58 ffff8800da884e80 0000000000014200 ffff880175a5ffd8 [ 6121.781322] 0000000000014200 ffffffff81c1a580 ffff8800da884e80 00000000ebb8eeb0 [ 6121.781324] ffff88016696d0f0 ffff88016696d0f4 ffff8800da884e80 00000000ffffffff [ 6121.781325] Call Trace: [ 6121.781331] [<ffffffff817c36c9>] schedule_preempt_disabled+0x29/0x70 [ 6121.781333] [<ffffffff817c5585>] __mutex_lock_slowpath+0x95/0x100 [ 6121.781335] [<ffffffff817c5613>] mutex_lock+0x23/0x40 [ 6121.781337] [<ffffffff815b3453>] usb_disconnect+0x53/0x2e0 [ 6121.781340] [<ffffffff815bce84>] ? usb_control_msg+0xd4/0x110 [ 6121.781342] [<ffffffff815b518c>] hub_port_connect+0x6c/0xa50 [ 6121.781344] [<ffffffff815af7a8>] ? hub_port_status+0xd8/0x120 [ 6121.781346] [<ffffffff815b5eb4>] port_event+0x344/0x7e0 [ 6121.781348] [<ffffffff815b655d>] hub_event+0x20d/0x400 [ 6121.781351] [<ffffffff8108eb48>] process_one_work+0x158/0x430 [ 6121.781352] [<ffffffff8108f5db>] worker_thread+0x5b/0x530 [ 6121.781354] [<ffffffff8108f580>] ? rescuer_thread+0x3a0/0x3a0 [ 6121.781356] [<ffffffff81094679>] kthread+0xc9/0xe0 [ 6121.781358] [<ffffffff810945b0>] ? kthread_create_on_node+0x1c0/0x1c0 [ 6121.781361] [<ffffffff817c7a3c>] ret_from_fork+0x7c/0xb0 [ 6121.781362] [<ffffffff810945b0>] ? kthread_create_on_node+0x1c0/0x1c0 [ 6121.781365] INFO: task umount:8799 blocked for more than 120 seconds. [ 6121.781366] Tainted: P U W OE 3.19.0-9-generic #9-Ubuntu [ 6121.781367] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 6121.781367] umount D ffff8801d4087c28 0 8799 1389 0x00000000 [ 6121.781369] ffff8801d4087c28 ffff88010c360000 0000000000014200 ffff8801d4087fd8 [ 6121.781371] 0000000000014200 ffffffff81c1a580 ffff88010c360000 ffff8801760fe050 [ 6121.781372] ffff8801d4087d68 7fffffffffffffff ffff8801d4087d60 ffff88010c360000 [ 6121.781373] Call Trace: [ 6121.781375] [<ffffffff817c3179>] schedule+0x29/0x70 [ 6121.781377] [<ffffffff817c673c>] schedule_timeout+0x20c/0x280 [ 6121.781380] [<ffffffff81385beb>] ? blk_queue_bio+0x36b/0x370 [ 6121.781382] [<ffffffff817c4b34>] wait_for_completion+0xa4/0x170 [ 6121.781384] [<ffffffff810a1c70>] ? wake_up_state+0x20/0x20 [ 6121.781387] [<ffffffff8137a60c>] submit_bio_wait+0x5c/0x70 [ 6121.781389] [<ffffffff81387851>] blkdev_issue_flush+0x61/0x90 [ 6121.781393] [<ffffffff8128c857>] ext4_sync_fs+0x127/0x1b0 [ 6121.781396] [<ffffffff81224c72>] sync_filesystem+0x82/0xc0 [ 6121.781399] [<ffffffff811f52c4>] generic_shutdown_super+0x34/0x100 [ 6121.781401] [<ffffffff811f56c7>] kill_block_super+0x27/0x80 [ 6121.781403] [<ffffffff811f5a09>] deactivate_locked_super+0x49/0x60 [ 6121.781404] [<ffffffff811f5e5c>] deactivate_super+0x6c/0x80 [ 6121.781407] [<ffffffff81213c53>] cleanup_mnt+0x43/0xa0 [ 6121.781408] [<ffffffff81213d02>] __cleanup_mnt+0x12/0x20 [ 6121.781410] [<ffffffff81092c44>] task_work_run+0xd4/0xf0 [ 6121.781413] [<ffffffff81015007>] do_notify_resume+0x97/0xb0 [ 6121.781415] [<ffffffff817c7d8f>] int_signal+0x12/0x17 [ 6241.815503] INFO: task kworker/0:1:8476 blocked for more than 120 seconds. [ 6241.815507] Tainted: P U W OE 3.19.0-9-generic #9-Ubuntu [ 6241.815508] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 6241.815510] kworker/0:1 D ffff880175a5fb58 0 8476 2 0x00000000 [ 6241.815517] Workqueue: usb_hub_wq hub_event [ 6241.815518] ffff880175a5fb58 ffff8800da884e80 0000000000014200 ffff880175a5ffd8 [ 6241.815520] 0000000000014200 ffffffff81c1a580 ffff8800da884e80 00000000ebb8eeb0 [ 6241.815521] ffff88016696d0f0 ffff88016696d0f4 ffff8800da884e80 00000000ffffffff [ 6241.815523] Call Trace: [ 6241.815529] [<ffffffff817c36c9>] schedule_preempt_disabled+0x29/0x70 [ 6241.815531] [<ffffffff817c5585>] __mutex_lock_slowpath+0x95/0x100 [ 6241.815533] [<ffffffff817c5613>] mutex_lock+0x23/0x40 [ 6241.815534] [<ffffffff815b3453>] usb_disconnect+0x53/0x2e0 [ 6241.815538] [<ffffffff815bce84>] ? usb_control_msg+0xd4/0x110 [ 6241.815539] [<ffffffff815b518c>] hub_port_connect+0x6c/0xa50 [ 6241.815541] [<ffffffff815af7a8>] ? hub_port_status+0xd8/0x120 [ 6241.815543] [<ffffffff815b5eb4>] port_event+0x344/0x7e0 [ 6241.815545] [<ffffffff815b655d>] hub_event+0x20d/0x400 [ 6241.815548] [<ffffffff8108eb48>] process_one_work+0x158/0x430 [ 6241.815550] [<ffffffff8108f5db>] worker_thread+0x5b/0x530 [ 6241.815551] [<ffffffff8108f580>] ? rescuer_thread+0x3a0/0x3a0 [ 6241.815554] [<ffffffff81094679>] kthread+0xc9/0xe0 [ 6241.815556] [<ffffffff810945b0>] ? kthread_create_on_node+0x1c0/0x1c0 [ 6241.815558] [<ffffffff817c7a3c>] ret_from_fork+0x7c/0xb0 [ 6241.815560] [<ffffffff810945b0>] ? kthread_create_on_node+0x1c0/0x1c0 [ 6241.815562] INFO: task umount:8799 blocked for more than 120 seconds. [ 6241.815563] Tainted: P U W OE 3.19.0-9-generic #9-Ubuntu [ 6241.815564] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 6241.815565] umount D ffff8801d4087c28 0 8799 1389 0x00000000 [ 6241.815567] ffff8801d4087c28 ffff88010c360000 0000000000014200 ffff8801d4087fd8 [ 6241.815568] 0000000000014200 ffffffff81c1a580 ffff88010c360000 ffff8801760fe050 [ 6241.815570] ffff8801d4087d68 7fffffffffffffff ffff8801d4087d60 ffff88010c360000 [ 6241.815571] Call Trace: [ 6241.815573] [<ffffffff817c3179>] schedule+0x29/0x70 [ 6241.815575] [<ffffffff817c673c>] schedule_timeout+0x20c/0x280 [ 6241.815577] [<ffffffff81385beb>] ? blk_queue_bio+0x36b/0x370 [ 6241.815580] [<ffffffff817c4b34>] wait_for_completion+0xa4/0x170 [ 6241.815582] [<ffffffff810a1c70>] ? wake_up_state+0x20/0x20 [ 6241.815584] [<ffffffff8137a60c>] submit_bio_wait+0x5c/0x70 [ 6241.815587] [<ffffffff81387851>] blkdev_issue_flush+0x61/0x90 [ 6241.815591] [<ffffffff8128c857>] ext4_sync_fs+0x127/0x1b0 [ 6241.815594] [<ffffffff81224c72>] sync_filesystem+0x82/0xc0 [ 6241.815597] [<ffffffff811f52c4>] generic_shutdown_super+0x34/0x100 [ 6241.815600] [<ffffffff811f56c7>] kill_block_super+0x27/0x80 [ 6241.815601] [<ffffffff811f5a09>] deactivate_locked_super+0x49/0x60 [ 6241.815603] [<ffffffff811f5e5c>] deactivate_super+0x6c/0x80 [ 6241.815605] [<ffffffff81213c53>] cleanup_mnt+0x43/0xa0 [ 6241.815606] [<ffffffff81213d02>] __cleanup_mnt+0x12/0x20 [ 6241.815608] [<ffffffff81092c44>] task_work_run+0xd4/0xf0 [ 6241.815612] [<ffffffff81015007>] do_notify_resume+0x97/0xb0 [ 6241.815614] [<ffffffff817c7d8f>] int_signal+0x12/0x17 [ 6361.849873] INFO: task kworker/0:1:8476 blocked for more than 120 seconds. [ 6361.849877] Tainted: P U W OE 3.19.0-9-generic #9-Ubuntu [ 6361.849878] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 6361.849879] kworker/0:1 D ffff880175a5fb58 0 8476 2 0x00000000 [ 6361.849886] Workqueue: usb_hub_wq hub_event [ 6361.849887] ffff880175a5fb58 ffff8800da884e80 0000000000014200 ffff880175a5ffd8 [ 6361.849889] 0000000000014200 ffffffff81c1a580 ffff8800da884e80 00000000ebb8eeb0 [ 6361.849891] ffff88016696d0f0 ffff88016696d0f4 ffff8800da884e80 00000000ffffffff [ 6361.849892] Call Trace: [ 6361.849897] [<ffffffff817c36c9>] schedule_preempt_disabled+0x29/0x70 [ 6361.849900] [<ffffffff817c5585>] __mutex_lock_slowpath+0x95/0x100 [ 6361.849902] [<ffffffff817c5613>] mutex_lock+0x23/0x40 [ 6361.849903] [<ffffffff815b3453>] usb_disconnect+0x53/0x2e0 [ 6361.849906] [<ffffffff815bce84>] ? usb_control_msg+0xd4/0x110 [ 6361.849908] [<ffffffff815b518c>] hub_port_connect+0x6c/0xa50 [ 6361.849910] [<ffffffff815af7a8>] ? hub_port_status+0xd8/0x120 [ 6361.849912] [<ffffffff815b5eb4>] port_event+0x344/0x7e0 [ 6361.849914] [<ffffffff815b655d>] hub_event+0x20d/0x400 [ 6361.849917] [<ffffffff8108eb48>] process_one_work+0x158/0x430 [ 6361.849919] [<ffffffff8108f5db>] worker_thread+0x5b/0x530 [ 6361.849921] [<ffffffff8108f580>] ? rescuer_thread+0x3a0/0x3a0 [ 6361.849923] [<ffffffff81094679>] kthread+0xc9/0xe0 [ 6361.849925] [<ffffffff810945b0>] ? kthread_create_on_node+0x1c0/0x1c0 [ 6361.849928] [<ffffffff817c7a3c>] ret_from_fork+0x7c/0xb0 [ 6361.849929] [<ffffffff810945b0>] ? kthread_create_on_node+0x1c0/0x1c0 [ 6361.849932] INFO: task umount:8799 blocked for more than 120 seconds. [ 6361.849933] Tainted: P U W OE 3.19.0-9-generic #9-Ubuntu [ 6361.849934] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 6361.849934] umount D ffff8801d4087c28 0 8799 1389 0x00000000 [ 6361.849936] ffff8801d4087c28 ffff88010c360000 0000000000014200 ffff8801d4087fd8 [ 6361.849938] 0000000000014200 ffffffff81c1a580 ffff88010c360000 ffff8801760fe050 [ 6361.849939] ffff8801d4087d68 7fffffffffffffff ffff8801d4087d60 ffff88010c360000 [ 6361.849941] Call Trace: [ 6361.849943] [<ffffffff817c3179>] schedule+0x29/0x70 [ 6361.849945] [<ffffffff817c673c>] schedule_timeout+0x20c/0x280 [ 6361.849947] [<ffffffff81385beb>] ? blk_queue_bio+0x36b/0x370 [ 6361.849949] [<ffffffff817c4b34>] wait_for_completion+0xa4/0x170 [ 6361.849951] [<ffffffff810a1c70>] ? wake_up_state+0x20/0x20 [ 6361.849954] [<ffffffff8137a60c>] submit_bio_wait+0x5c/0x70 [ 6361.849956] [<ffffffff81387851>] blkdev_issue_flush+0x61/0x90 [ 6361.849960] [<ffffffff8128c857>] ext4_sync_fs+0x127/0x1b0 [ 6361.849963] [<ffffffff81224c72>] sync_filesystem+0x82/0xc0 [ 6361.849967] [<ffffffff811f52c4>] generic_shutdown_super+0x34/0x100 [ 6361.849969] [<ffffffff811f56c7>] kill_block_super+0x27/0x80 [ 6361.849970] [<ffffffff811f5a09>] deactivate_locked_super+0x49/0x60 [ 6361.849972] [<ffffffff811f5e5c>] deactivate_super+0x6c/0x80 [ 6361.849974] [<ffffffff81213c53>] cleanup_mnt+0x43/0xa0 [ 6361.849976] [<ffffffff81213d02>] __cleanup_mnt+0x12/0x20 [ 6361.849978] [<ffffffff81092c44>] task_work_run+0xd4/0xf0 [ 6361.849981] [<ffffffff81015007>] do_notify_resume+0x97/0xb0 [ 6361.849983] [<ffffffff817c7d8f>] int_signal+0x12/0x17 [ 6481.884376] INFO: task kworker/0:1:8476 blocked for more than 120 seconds. [ 6481.884380] Tainted: P U W OE 3.19.0-9-generic #9-Ubuntu [ 6481.884381] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 6481.884382] kworker/0:1 D ffff880175a5fb58 0 8476 2 0x00000000 [ 6481.884389] Workqueue: usb_hub_wq hub_event [ 6481.884391] ffff880175a5fb58 ffff8800da884e80 0000000000014200 ffff880175a5ffd8 [ 6481.884392] 0000000000014200 ffffffff81c1a580 ffff8800da884e80 00000000ebb8eeb0 [ 6481.884394] ffff88016696d0f0 ffff88016696d0f4 ffff8800da884e80 00000000ffffffff [ 6481.884396] Call Trace: [ 6481.884401] [<ffffffff817c36c9>] schedule_preempt_disabled+0x29/0x70 [ 6481.884403] [<ffffffff817c5585>] __mutex_lock_slowpath+0x95/0x100 [ 6481.884405] [<ffffffff817c5613>] mutex_lock+0x23/0x40 [ 6481.884407] [<ffffffff815b3453>] usb_disconnect+0x53/0x2e0 [ 6481.884410] [<ffffffff815bce84>] ? usb_control_msg+0xd4/0x110 [ 6481.884412] [<ffffffff815b518c>] hub_port_connect+0x6c/0xa50 [ 6481.884414] [<ffffffff815af7a8>] ? hub_port_status+0xd8/0x120 [ 6481.884416] [<ffffffff815b5eb4>] port_event+0x344/0x7e0 [ 6481.884418] [<ffffffff815b655d>] hub_event+0x20d/0x400 [ 6481.884421] [<ffffffff8108eb48>] process_one_work+0x158/0x430 [ 6481.884422] [<ffffffff8108f5db>] worker_thread+0x5b/0x530 [ 6481.884424] [<ffffffff8108f580>] ? rescuer_thread+0x3a0/0x3a0 [ 6481.884426] [<ffffffff81094679>] kthread+0xc9/0xe0 [ 6481.884429] [<ffffffff810945b0>] ? kthread_create_on_node+0x1c0/0x1c0 [ 6481.884431] [<ffffffff817c7a3c>] ret_from_fork+0x7c/0xb0 [ 6481.884433] [<ffffffff810945b0>] ? kthread_create_on_node+0x1c0/0x1c0 [ 6481.884435] INFO: task umount:8799 blocked for more than 120 seconds. [ 6481.884436] Tainted: P U W OE 3.19.0-9-generic #9-Ubuntu [ 6481.884437] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 6481.884438] umount D ffff8801d4087c28 0 8799 1389 0x00000000 [ 6481.884440] ffff8801d4087c28 ffff88010c360000 0000000000014200 ffff8801d4087fd8 [ 6481.884441] 0000000000014200 ffffffff81c1a580 ffff88010c360000 ffff8801760fe050 [ 6481.884442] ffff8801d4087d68 7fffffffffffffff ffff8801d4087d60 ffff88010c360000 [ 6481.884444] Call Trace: [ 6481.884446] [<ffffffff817c3179>] schedule+0x29/0x70 [ 6481.884448] [<ffffffff817c673c>] schedule_timeout+0x20c/0x280 [ 6481.884450] [<ffffffff81385beb>] ? blk_queue_bio+0x36b/0x370 [ 6481.884452] [<ffffffff817c4b34>] wait_for_completion+0xa4/0x170 [ 6481.884454] [<ffffffff810a1c70>] ? wake_up_state+0x20/0x20 [ 6481.884457] [<ffffffff8137a60c>] submit_bio_wait+0x5c/0x70 [ 6481.884459] [<ffffffff81387851>] blkdev_issue_flush+0x61/0x90 [ 6481.884463] [<ffffffff8128c857>] ext4_sync_fs+0x127/0x1b0 [ 6481.884466] [<ffffffff81224c72>] sync_filesystem+0x82/0xc0 [ 6481.884470] [<ffffffff811f52c4>] generic_shutdown_super+0x34/0x100 [ 6481.884472] [<ffffffff811f56c7>] kill_block_super+0x27/0x80 [ 6481.884473] [<ffffffff811f5a09>] deactivate_locked_super+0x49/0x60 [ 6481.884475] [<ffffffff811f5e5c>] deactivate_super+0x6c/0x80 [ 6481.884477] [<ffffffff81213c53>] cleanup_mnt+0x43/0xa0 [ 6481.884478] [<ffffffff81213d02>] __cleanup_mnt+0x12/0x20 [ 6481.884480] [<ffffffff81092c44>] task_work_run+0xd4/0xf0 [ 6481.884484] [<ffffffff81015007>] do_notify_resume+0x97/0xb0 [ 6481.884486] [<ffffffff817c7d8f>] int_signal+0x12/0x17 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1434764 Title: External HDD stop working Status in linux package in Ubuntu: Confirmed Bug description: [ 1026.241834] blk_update_request: I/O error, dev sdc, sector 205592175 [ 1026.241853] EXT4-fs warning (device dm-0): __ext4_read_dirblock:884: error -5 reading directory block (ino 6426347, block 0) [ 1441.263728] sd 6:0:0:0: rejecting I/O to offline device [ 1441.263737] blk_update_request: I/O error, dev sdc, sector 0 [ 1441.265369] sd 6:0:0:0: rejecting I/O to offline device [ 1441.265375] blk_update_request: I/O error, dev sdc, sector 0 [ 1441.265410] sd 6:0:0:0: rejecting I/O to offline device [ 1441.265415] Buffer I/O error on dev dm-0, logical block 13139968, lost sync page write [ 1441.265418] JBD2: Error -5 detected when updating journal superblock for dm-0-8. [ 1441.265423] sd 6:0:0:0: rejecting I/O to offline device [ 1441.265424] blk_update_request: I/O error, dev sdc, sector 0 [ 1441.265447] sd 6:0:0:0: rejecting I/O to offline device [ 1441.265449] Buffer I/O error on dev dm-0, logical block 13139968, lost sync page write [ 1441.265451] JBD2: Error -5 detected when updating journal superblock for dm-0-8. [ 1441.265453] sd 6:0:0:0: rejecting I/O to offline device [ 1441.265454] blk_update_request: I/O error, dev sdc, sector 0 [ 1441.265477] sd 6:0:0:0: rejecting I/O to offline device [ 1441.265479] Buffer I/O error on dev dm-0, logical block 13139968, lost sync page write [ 1441.265480] JBD2: Error -5 detected when updating journal superblock for dm-0-8. [ 1441.265502] sd 6:0:0:0: rejecting I/O to offline device [ 1441.265504] Buffer I/O error on dev dm-0, logical block 13139968, lost sync page write [ 1441.265506] JBD2: Error -5 detected when updating journal superblock for dm-0-8. [ 1441.265593] sd 6:0:0:0: rejecting I/O to offline device [ 1441.265595] Buffer I/O error on dev dm-0, logical block 0, lost sync page write [ 1441.267936] ------------[ cut here ]------------ [ 1441.267944] WARNING: CPU: 0 PID: 5697 at /build/buildd/linux-3.19.0/fs/block_dev.c:67 bdev_inode_switch_bdi+0x64/0x90() [ 1441.267945] Modules linked in: xts gf128mul dm_crypt uas usb_storage zfs(POE) zunicode(POE) zcommon(POE) znvpair(POE) spl(OE) zavl(POE) pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) binfmt_misc hid_generic usbhid hid dcdbas i8k intel_rapl dm_multipath scsi_dh arc4 ath9k iosf_mbi ath9k_common ath9k_hw x86_pkg_temp_thermal intel_powerclamp coretemp ath snd_hda_codec_hdmi snd_hda_codec_realtek mac80211 snd_hda_codec_generic snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm kvm_intel cfg80211 kvm snd_seq_midi crct10dif_pclmul snd_seq_midi_event snd_rawmidi crc32_pclmul snd_seq ghash_clmulni_intel snd_seq_device cryptd serio_raw snd_timer snd soundcore ie31200_edac mei_me edac_core mei shpchp lpc_ich mac_hid parport_pc ppdev lp parport autofs4 i915 i2c_algo_bit drm_kms_helper [ 1441.267975] psmouse ahci drm r8169 libahci mii video [ 1441.267980] CPU: 0 PID: 5697 Comm: umount Tainted: P U OE 3.19.0-9-generic #9-Ubuntu [ 1441.267982] Hardware name: Dell Inc. Vostro 270s /0XFWHV , BIOS A09 11/22/2012 [ 1441.267983] ffffffff81ab8450 ffff88013de0fd68 ffffffff817c09b5 0000000000000007 [ 1441.267984] 0000000000000000 ffff88013de0fda8 ffffffff8107595a 0000000000000000 [ 1441.267986] ffff8800d4e3eb30 ffff8800d4e3ebb8 ffffffff81c6a800 0000000000000083 [ 1441.267988] Call Trace: [ 1441.267992] [<ffffffff817c09b5>] dump_stack+0x45/0x57 [ 1441.267995] [<ffffffff8107595a>] warn_slowpath_common+0x8a/0xc0 [ 1441.267996] [<ffffffff81075a4a>] warn_slowpath_null+0x1a/0x20 [ 1441.267998] [<ffffffff8122c034>] bdev_inode_switch_bdi+0x64/0x90 [ 1441.268000] [<ffffffff8122cc98>] __blkdev_put+0x78/0x1c0 [ 1441.268001] [<ffffffff8122d740>] blkdev_put+0x50/0x160 [ 1441.268005] [<ffffffff811f56e1>] kill_block_super+0x41/0x80 [ 1441.268006] [<ffffffff811f5a09>] deactivate_locked_super+0x49/0x60 [ 1441.268008] [<ffffffff811f5e5c>] deactivate_super+0x6c/0x80 [ 1441.268010] [<ffffffff81213c53>] cleanup_mnt+0x43/0xa0 [ 1441.268012] [<ffffffff81213d02>] __cleanup_mnt+0x12/0x20 [ 1441.268014] [<ffffffff81092c44>] task_work_run+0xd4/0xf0 [ 1441.268017] [<ffffffff81015007>] do_notify_resume+0x97/0xb0 [ 1441.268020] [<ffffffff817c7d8f>] int_signal+0x12/0x17 [ 1441.268021] ---[ end trace 88507186f399609d ]--- ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-9-generic 3.19.0-9.9 ProcVersionSignature: Ubuntu 3.19.0-9.9-generic 3.19.1 Uname: Linux 3.19.0-9-generic x86_64 NonfreeKernelModules: zfs zunicode zcommon znvpair zavl ApportVersion: 2.16.2-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: dick 1863 F.... pulseaudio CurrentDesktop: GNOME Date: Sat Mar 21 01:38:03 2015 HibernationDevice: RESUME=UUID=d4edf843-4e16-4c6d-9ff4-31f1fdfcfb36 InstallationDate: Installed on 2015-03-08 (12 days ago) InstallationMedia: Ubuntu-GNOME 14.10 "Utopic Unicorn" - Release amd64 (20141022.1) MachineType: Dell Inc. Vostro 270s ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-9-generic root=UUID=385a048a-42c5-48f2-ab0c-c5096c1b87c4 ro i915.semaphores=1 zswap.enabled=1 zswap.compressor=lz4 zswap.max_pool_percent=30 quiet splash i915.semaphores=1 zswap.enabled=1 zswap.compressor=lz4 zswap.max_pool_percent=30 vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-9-generic N/A linux-backports-modules-3.19.0-9-generic N/A linux-firmware 1.143 RfKill: 0: phy0: Wireless LAN Soft blocked: yes Hard blocked: no SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-03-08 (12 days ago) dmi.bios.date: 11/22/2012 dmi.bios.vendor: Dell Inc. dmi.bios.version: A09 dmi.board.name: 0XFWHV dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 3 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA09:bd11/22/2012:svnDellInc.:pnVostro270s:pvr:rvnDellInc.:rn0XFWHV:rvrA00:cvnDellInc.:ct3:cvr: dmi.product.name: Vostro 270s dmi.sys.vendor: Dell Inc. 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