Created attachment 907330 [details] kernel log $ uname -a Linux localhost.localdomain 3.14.6-200.fc20.x86_64+debug #1 SMP Sun Jun 8 01:08:10 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux Description of problem: [ 240.036323] INFO: task scsi_eh_6:537 blocked for more than 120 seconds. [ 240.036333] Not tainted 3.14.6-200.fc20.x86_64+debug #1 [ 240.036337] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 240.036341] scsi_eh_6 D ffff880813528000 6184 537 2 0x00000000 [ 240.036355] ffff8808027cdc50 0000000000000046 ffff88007c988000 ffff8808027cdfd8 [ 240.036366] 00000000001d5800 00000000001d5800 ffff88007c988000 ffff880810ca6bf0 [ 240.036375] ffff880810ca6bf8 0000000000000246 ffff88007c988000 ffff88080c532600 [ 240.036384] Call Trace: [ 240.036400] [<ffffffff817dafe1>] schedule_preempt_disabled+0x31/0x80 [ 240.036409] [<ffffffff817dc204>] mutex_lock_nested+0x194/0x430 [ 240.036434] [<ffffffffa035d9b4>] ? device_reset+0x24/0x50 [usb_storage] [ 240.036450] [<ffffffffa035d9b4>] ? device_reset+0x24/0x50 [usb_storage] [ 240.036466] [<ffffffffa035d9b4>] device_reset+0x24/0x50 [usb_storage] [ 240.036478] [<ffffffff81523f0a>] scsi_try_bus_device_reset+0x2a/0x50 [ 240.036487] [<ffffffff8152601f>] scsi_eh_ready_devs+0x4df/0xc20 [ 240.036495] [<ffffffff81527886>] ? scsi_eh_get_sense+0x176/0x2a0 [ 240.036504] [<ffffffff81527eec>] scsi_error_handler+0x53c/0x830 [ 240.036512] [<ffffffff815279b0>] ? scsi_eh_get_sense+0x2a0/0x2a0 [ 240.036522] [<ffffffff810c452f>] kthread+0xff/0x120 [ 240.036530] [<ffffffff810c4430>] ? insert_kthread_work+0x80/0x80 [ 240.036540] [<ffffffff817eaafc>] ret_from_fork+0x7c/0xb0 [ 240.036547] [<ffffffff810c4430>] ? insert_kthread_work+0x80/0x80 [ 240.036553] 1 lock held by scsi_eh_6/537: [ 240.036555] #0: (&us_interface_key[i]){+.+.+.}, at: [<ffffffffa035d9b4>] device_reset+0x24/0x50 [usb_storage] [ 240.036575] INFO: task usb-storage:539 blocked for more than 120 seconds. [ 240.036579] Not tainted 3.14.6-200.fc20.x86_64+debug #1 [ 240.036582] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 240.036585] usb-storage D ffff88081351a590 5032 539 2 0x00000000 [ 240.036595] ffff8808025ebae0 0000000000000046 ffff880800c28000 ffff8808025ebfd8 [ 240.036604] 00000000001d5800 00000000001d5800 ffff880800c28000 7fffffffffffffff [ 240.036612] ffff880810ca6dd0 ffff880810ca6dc8 ffff880800c28000 0000000000000000 [ 240.036621] Call Trace: [ 240.036629] [<ffffffff817daad9>] schedule+0x29/0x70 [ 240.036637] [<ffffffff817d9a59>] schedule_timeout+0x1f9/0x350 [ 240.036648] [<ffffffff810fb9e9>] ? mark_held_locks+0xb9/0x140 [ 240.036657] [<ffffffff817dff8c>] ? _raw_spin_unlock_irq+0x2c/0x40 [ 240.036665] [<ffffffff810fbb75>] ? trace_hardirqs_on_caller+0x105/0x1d0 [ 240.036673] [<ffffffff817dc02c>] wait_for_completion+0xfc/0x140 [ 240.036684] [<ffffffff810d9a50>] ? wake_up_state+0x20/0x20 [ 240.036692] [<ffffffff815845fd>] usb_sg_wait+0x12d/0x190 [ 240.036709] [<ffffffffa035e4db>] usb_stor_bulk_transfer_sglist.part.4+0x8b/0xf0 [usb_storage] [ 240.036725] [<ffffffffa035e5b1>] usb_stor_bulk_srb+0x71/0x80 [usb_storage] [ 240.036741] [<ffffffffa035e71c>] usb_stor_Bulk_transport+0x15c/0x360 [usb_storage] [ 240.036758] [<ffffffffa035ef9b>] usb_stor_invoke_transport+0x3b/0x570 [usb_storage] [ 240.036766] [<ffffffff810fb9e9>] ? mark_held_locks+0xb9/0x140 [ 240.036774] [<ffffffff817dff8c>] ? _raw_spin_unlock_irq+0x2c/0x40 [ 240.036790] [<ffffffffa035dbce>] usb_stor_transparent_scsi_command+0xe/0x10 [usb_storage] [ 240.036807] [<ffffffffa035fe96>] usb_stor_control_thread+0x176/0x290 [usb_storage] [ 240.036824] [<ffffffffa035fd20>] ? fill_inquiry_response+0x20/0x20 [usb_storage] [ 240.036840] [<ffffffffa035fd20>] ? fill_inquiry_response+0x20/0x20 [usb_storage] [ 240.036847] [<ffffffff810c452f>] kthread+0xff/0x120 [ 240.036854] [<ffffffff810c4430>] ? insert_kthread_work+0x80/0x80 [ 240.036862] [<ffffffff817eaafc>] ret_from_fork+0x7c/0xb0 [ 240.036869] [<ffffffff810c4430>] ? insert_kthread_work+0x80/0x80 [ 240.036873] 1 lock held by usb-storage/539: [ 240.036876] #0: (&us_interface_key[i]){+.+.+.}, at: [<ffffffffa035fdaa>] usb_stor_control_thread+0x8a/0x290 [usb_storage] [ 359.971932] INFO: task scsi_eh_6:537 blocked for more than 120 seconds. [ 359.971935] Not tainted 3.14.6-200.fc20.x86_64+debug #1 [ 359.971936] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 359.971937] scsi_eh_6 D ffff880813528000 6184 537 2 0x00000000 [ 359.971941] ffff8808027cdc50 0000000000000046 ffff88007c988000 ffff8808027cdfd8 [ 359.971943] 00000000001d5800 00000000001d5800 ffff88007c988000 ffff880810ca6bf0 [ 359.971946] ffff880810ca6bf8 0000000000000246 ffff88007c988000 ffff88080c532600 [ 359.971948] Call Trace: [ 359.971953] [<ffffffff817dafe1>] schedule_preempt_disabled+0x31/0x80 [ 359.971955] [<ffffffff817dc204>] mutex_lock_nested+0x194/0x430 [ 359.971961] [<ffffffffa035d9b4>] ? device_reset+0x24/0x50 [usb_storage] [ 359.971964] [<ffffffffa035d9b4>] ? device_reset+0x24/0x50 [usb_storage] [ 359.971968] [<ffffffffa035d9b4>] device_reset+0x24/0x50 [usb_storage] [ 359.971985] [<ffffffff81523f0a>] scsi_try_bus_device_reset+0x2a/0x50 [ 359.971987] [<ffffffff8152601f>] scsi_eh_ready_devs+0x4df/0xc20 [ 359.971989] [<ffffffff81527886>] ? scsi_eh_get_sense+0x176/0x2a0 [ 359.971991] [<ffffffff81527eec>] scsi_error_handler+0x53c/0x830 [ 359.971992] [<ffffffff815279b0>] ? scsi_eh_get_sense+0x2a0/0x2a0 [ 359.971995] [<ffffffff810c452f>] kthread+0xff/0x120 [ 359.971997] [<ffffffff810c4430>] ? insert_kthread_work+0x80/0x80 [ 359.971999] [<ffffffff817eaafc>] ret_from_fork+0x7c/0xb0 [ 359.972001] [<ffffffff810c4430>] ? insert_kthread_work+0x80/0x80 [ 359.972002] 1 lock held by scsi_eh_6/537: [ 359.972003] #0: (&us_interface_key[i]){+.+.+.}, at: [<ffffffffa035d9b4>] device_reset+0x24/0x50 [usb_storage] [ 359.972008] INFO: task usb-storage:539 blocked for more than 120 seconds. [ 359.972009] Not tainted 3.14.6-200.fc20.x86_64+debug #1 [ 359.972009] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 359.972010] usb-storage D ffff88081351a590 5032 539 2 0x00000000 [ 359.972012] ffff8808025ebae0 0000000000000046 ffff880800c28000 ffff8808025ebfd8 [ 359.972014] 00000000001d5800 00000000001d5800 ffff880800c28000 7fffffffffffffff [ 359.972016] ffff880810ca6dd0 ffff880810ca6dc8 ffff880800c28000 0000000000000000 [ 359.972018] Call Trace: [ 359.972020] [<ffffffff817daad9>] schedule+0x29/0x70 [ 359.972021] [<ffffffff817d9a59>] schedule_timeout+0x1f9/0x350 [ 359.972025] [<ffffffff810fb9e9>] ? mark_held_locks+0xb9/0x140 [ 359.972027] [<ffffffff817dff8c>] ? _raw_spin_unlock_irq+0x2c/0x40 [ 359.972028] [<ffffffff810fbb75>] ? trace_hardirqs_on_caller+0x105/0x1d0 [ 359.972030] [<ffffffff817dc02c>] wait_for_completion+0xfc/0x140 [ 359.972033] [<ffffffff810d9a50>] ? wake_up_state+0x20/0x20 [ 359.972035] [<ffffffff815845fd>] usb_sg_wait+0x12d/0x190 [ 359.972038] [<ffffffffa035e4db>] usb_stor_bulk_transfer_sglist.part.4+0x8b/0xf0 [usb_storage] [ 359.972041] [<ffffffffa035e5b1>] usb_stor_bulk_srb+0x71/0x80 [usb_storage] [ 359.972045] [<ffffffffa035e71c>] usb_stor_Bulk_transport+0x15c/0x360 [usb_storage] [ 359.972048] [<ffffffffa035ef9b>] usb_stor_invoke_transport+0x3b/0x570 [usb_storage] [ 359.972050] [<ffffffff810fb9e9>] ? mark_held_locks+0xb9/0x140 [ 359.972052] [<ffffffff817dff8c>] ? _raw_spin_unlock_irq+0x2c/0x40 [ 359.972055] [<ffffffffa035dbce>] usb_stor_transparent_scsi_command+0xe/0x10 [usb_storage] [ 359.972059] [<ffffffffa035fe96>] usb_stor_control_thread+0x176/0x290 [usb_storage] [ 359.972062] [<ffffffffa035fd20>] ? fill_inquiry_response+0x20/0x20 [usb_storage] [ 359.972065] [<ffffffffa035fd20>] ? fill_inquiry_response+0x20/0x20 [usb_storage] [ 359.972067] [<ffffffff810c452f>] kthread+0xff/0x120 [ 359.972068] [<ffffffff810c4430>] ? insert_kthread_work+0x80/0x80 [ 359.972070] [<ffffffff817eaafc>] ret_from_fork+0x7c/0xb0 [ 359.972071] [<ffffffff810c4430>] ? insert_kthread_work+0x80/0x80 [ 359.972072] 1 lock held by usb-storage/539: [ 359.972073] #0: (&us_interface_key[i]){+.+.+.}, at: [<ffffffffa035fdaa>] usb_stor_control_thread+0x8a/0x290 [usb_storage] [ 479.904100] INFO: task scsi_eh_6:537 blocked for more than 120 seconds. [ 479.904111] Not tainted 3.14.6-200.fc20.x86_64+debug #1 [ 479.904114] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 479.904118] scsi_eh_6 D ffff880813528000 6184 537 2 0x00000000 [ 479.904131] ffff8808027cdc50 0000000000000046 ffff88007c988000 ffff8808027cdfd8 [ 479.904140] 00000000001d5800 00000000001d5800 ffff88007c988000 ffff880810ca6bf0 [ 479.904148] ffff880810ca6bf8 0000000000000246 ffff88007c988000 ffff88080c532600 [ 479.904156] Call Trace: [ 479.904171] [<ffffffff817dafe1>] schedule_preempt_disabled+0x31/0x80 [ 479.904179] [<ffffffff817dc204>] mutex_lock_nested+0x194/0x430 [ 479.904204] [<ffffffffa035d9b4>] ? device_reset+0x24/0x50 [usb_storage] [ 479.904218] [<ffffffffa035d9b4>] ? device_reset+0x24/0x50 [usb_storage] [ 479.904232] [<ffffffffa035d9b4>] device_reset+0x24/0x50 [usb_storage] [ 479.904243] [<ffffffff81523f0a>] scsi_try_bus_device_reset+0x2a/0x50 [ 479.904251] [<ffffffff8152601f>] scsi_eh_ready_devs+0x4df/0xc20 [ 479.904258] [<ffffffff81527886>] ? scsi_eh_get_sense+0x176/0x2a0 [ 479.904266] [<ffffffff81527eec>] scsi_error_handler+0x53c/0x830 [ 479.904274] [<ffffffff815279b0>] ? scsi_eh_get_sense+0x2a0/0x2a0 [ 479.904282] [<ffffffff810c452f>] kthread+0xff/0x120 [ 479.904290] [<ffffffff810c4430>] ? insert_kthread_work+0x80/0x80 [ 479.904299] [<ffffffff817eaafc>] ret_from_fork+0x7c/0xb0 [ 479.904305] [<ffffffff810c4430>] ? insert_kthread_work+0x80/0x80 [ 479.904310] 1 lock held by scsi_eh_6/537: [ 479.904312] #0: (&us_interface_key[i]){+.+.+.}, at: [<ffffffffa035d9b4>] device_reset+0x24/0x50 [usb_storage] [ 479.904331] INFO: task usb-storage:539 blocked for more than 120 seconds. [ 479.904334] Not tainted 3.14.6-200.fc20.x86_64+debug #1 [ 479.904337] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 479.904340] usb-storage D ffff88081351a590 5032 539 2 0x00000000 [ 479.904348] ffff8808025ebae0 0000000000000046 ffff880800c28000 ffff8808025ebfd8 [ 479.904357] 00000000001d5800 00000000001d5800 ffff880800c28000 7fffffffffffffff [ 479.904364] ffff880810ca6dd0 ffff880810ca6dc8 ffff880800c28000 0000000000000000 [ 479.904372] Call Trace: [ 479.904379] [<ffffffff817daad9>] schedule+0x29/0x70 [ 479.904385] [<ffffffff817d9a59>] schedule_timeout+0x1f9/0x350 [ 479.904396] [<ffffffff810fb9e9>] ? mark_held_locks+0xb9/0x140 [ 479.904404] [<ffffffff817dff8c>] ? _raw_spin_unlock_irq+0x2c/0x40 [ 479.904411] [<ffffffff810fbb75>] ? trace_hardirqs_on_caller+0x105/0x1d0 [ 479.904418] [<ffffffff817dc02c>] wait_for_completion+0xfc/0x140 [ 479.904428] [<ffffffff810d9a50>] ? wake_up_state+0x20/0x20 [ 479.904436] [<ffffffff815845fd>] usb_sg_wait+0x12d/0x190 [ 479.904451] [<ffffffffa035e4db>] usb_stor_bulk_transfer_sglist.part.4+0x8b/0xf0 [usb_storage] [ 479.904465] [<ffffffffa035e5b1>] usb_stor_bulk_srb+0x71/0x80 [usb_storage] [ 479.904480] [<ffffffffa035e71c>] usb_stor_Bulk_transport+0x15c/0x360 [usb_storage] [ 479.904495] [<ffffffffa035ef9b>] usb_stor_invoke_transport+0x3b/0x570 [usb_storage] [ 479.904502] [<ffffffff810fb9e9>] ? mark_held_locks+0xb9/0x140 [ 479.904509] [<ffffffff817dff8c>] ? _raw_spin_unlock_irq+0x2c/0x40 [ 479.904523] [<ffffffffa035dbce>] usb_stor_transparent_scsi_command+0xe/0x10 [usb_storage] [ 479.904538] [<ffffffffa035fe96>] usb_stor_control_thread+0x176/0x290 [usb_storage] [ 479.904553] [<ffffffffa035fd20>] ? fill_inquiry_response+0x20/0x20 [usb_storage] [ 479.904567] [<ffffffffa035fd20>] ? fill_inquiry_response+0x20/0x20 [usb_storage] [ 479.904573] [<ffffffff810c452f>] kthread+0xff/0x120 [ 479.904580] [<ffffffff810c4430>] ? insert_kthread_work+0x80/0x80 [ 479.904588] [<ffffffff817eaafc>] ret_from_fork+0x7c/0xb0 [ 479.904593] [<ffffffff810c4430>] ? insert_kthread_work+0x80/0x80 [ 479.904597] 1 lock held by usb-storage/539: [ 479.904600] #0: (&us_interface_key[i]){+.+.+.}, at: [<ffffffffa035fdaa>] usb_stor_control_thread+0x8a/0x290 [usb_storage] [ 599.833322] INFO: task scsi_eh_6:537 blocked for more than 120 seconds. [ 599.833326] Not tainted 3.14.6-200.fc20.x86_64+debug #1 [ 599.833327] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 599.833328] scsi_eh_6 D ffff880813528000 6184 537 2 0x00000000 [ 599.833333] ffff8808027cdc50 0000000000000046 ffff88007c988000 ffff8808027cdfd8 [ 599.833336] 00000000001d5800 00000000001d5800 ffff88007c988000 ffff880810ca6bf0 [ 599.833338] ffff880810ca6bf8 0000000000000246 ffff88007c988000 ffff88080c532600 [ 599.833340] Call Trace: [ 599.833346] [<ffffffff817dafe1>] schedule_preempt_disabled+0x31/0x80 [ 599.833348] [<ffffffff817dc204>] mutex_lock_nested+0x194/0x430 [ 599.833355] [<ffffffffa035d9b4>] ? device_reset+0x24/0x50 [usb_storage] [ 599.833359] [<ffffffffa035d9b4>] ? device_reset+0x24/0x50 [usb_storage] [ 599.833363] [<ffffffffa035d9b4>] device_reset+0x24/0x50 [usb_storage] [ 599.833367] [<ffffffff81523f0a>] scsi_try_bus_device_reset+0x2a/0x50 [ 599.833369] [<ffffffff8152601f>] scsi_eh_ready_devs+0x4df/0xc20 [ 599.833371] [<ffffffff81527886>] ? scsi_eh_get_sense+0x176/0x2a0 [ 599.833374] [<ffffffff81527eec>] scsi_error_handler+0x53c/0x830 [ 599.833376] [<ffffffff815279b0>] ? scsi_eh_get_sense+0x2a0/0x2a0 [ 599.833379] [<ffffffff810c452f>] kthread+0xff/0x120 [ 599.833381] [<ffffffff810c4430>] ? insert_kthread_work+0x80/0x80 [ 599.833384] [<ffffffff817eaafc>] ret_from_fork+0x7c/0xb0 [ 599.833386] [<ffffffff810c4430>] ? insert_kthread_work+0x80/0x80 [ 599.833387] 1 lock held by scsi_eh_6/537: [ 599.833388] #0: (&us_interface_key[i]){+.+.+.}, at: [<ffffffffa035d9b4>] device_reset+0x24/0x50 [usb_storage] [ 599.833394] INFO: task usb-storage:539 blocked for more than 120 seconds. [ 599.833395] Not tainted 3.14.6-200.fc20.x86_64+debug #1 [ 599.833396] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 599.833396] usb-storage D ffff88081351a590 5032 539 2 0x00000000 [ 599.833399] ffff8808025ebae0 0000000000000046 ffff880800c28000 ffff8808025ebfd8 [ 599.833401] 00000000001d5800 00000000001d5800 ffff880800c28000 7fffffffffffffff [ 599.833403] ffff880810ca6dd0 ffff880810ca6dc8 ffff880800c28000 0000000000000000 [ 599.833405] Call Trace: [ 599.833408] [<ffffffff817daad9>] schedule+0x29/0x70 [ 599.833410] [<ffffffff817d9a59>] schedule_timeout+0x1f9/0x350 [ 599.833413] [<ffffffff810fb9e9>] ? mark_held_locks+0xb9/0x140 [ 599.833416] [<ffffffff817dff8c>] ? _raw_spin_unlock_irq+0x2c/0x40 [ 599.833418] [<ffffffff810fbb75>] ? trace_hardirqs_on_caller+0x105/0x1d0 [ 599.833420] [<ffffffff817dc02c>] wait_for_completion+0xfc/0x140 [ 599.833423] [<ffffffff810d9a50>] ? wake_up_state+0x20/0x20 [ 599.833425] [<ffffffff815845fd>] usb_sg_wait+0x12d/0x190 [ 599.833430] [<ffffffffa035e4db>] usb_stor_bulk_transfer_sglist.part.4+0x8b/0xf0 [usb_storage] [ 599.833434] [<ffffffffa035e5b1>] usb_stor_bulk_srb+0x71/0x80 [usb_storage] [ 599.833438] [<ffffffffa035e71c>] usb_stor_Bulk_transport+0x15c/0x360 [usb_storage] [ 599.833442] [<ffffffffa035ef9b>] usb_stor_invoke_transport+0x3b/0x570 [usb_storage] [ 599.833444] [<ffffffff810fb9e9>] ? mark_held_locks+0xb9/0x140 [ 599.833446] [<ffffffff817dff8c>] ? _raw_spin_unlock_irq+0x2c/0x40 [ 599.833450] [<ffffffffa035dbce>] usb_stor_transparent_scsi_command+0xe/0x10 [usb_storage] [ 599.833453] [<ffffffffa035fe96>] usb_stor_control_thread+0x176/0x290 [usb_storage] [ 599.833457] [<ffffffffa035fd20>] ? fill_inquiry_response+0x20/0x20 [usb_storage] [ 599.833461] [<ffffffffa035fd20>] ? fill_inquiry_response+0x20/0x20 [usb_storage] [ 599.833463] [<ffffffff810c452f>] kthread+0xff/0x120 [ 599.833465] [<ffffffff810c4430>] ? insert_kthread_work+0x80/0x80 [ 599.833467] [<ffffffff817eaafc>] ret_from_fork+0x7c/0xb0 [ 599.833469] [<ffffffff810c4430>] ? insert_kthread_work+0x80/0x80 [ 599.833470] 1 lock held by usb-storage/539: [ 599.833471] #0: (&us_interface_key[i]){+.+.+.}, at: [<ffffffffa035fdaa>] usb_stor_control_thread+0x8a/0x290 [usb_storage] [ 649.166883] kworker/u16:5 (114) used greatest stack depth: 1992 bytes left [ 719.763710] INFO: task scsi_eh_6:537 blocked for more than 120 seconds. [ 719.763715] Not tainted 3.14.6-200.fc20.x86_64+debug #1 [ 719.763716] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 719.763718] scsi_eh_6 D ffff880813528000 6184 537 2 0x00000000 [ 719.763724] ffff8808027cdc50 0000000000000046 ffff88007c988000 ffff8808027cdfd8 [ 719.763728] 00000000001d5800 00000000001d5800 ffff88007c988000 ffff880810ca6bf0 [ 719.763732] ffff880810ca6bf8 0000000000000246 ffff88007c988000 ffff88080c532600 [ 719.763735] Call Trace: [ 719.763743] [<ffffffff817dafe1>] schedule_preempt_disabled+0x31/0x80 [ 719.763746] [<ffffffff817dc204>] mutex_lock_nested+0x194/0x430 [ 719.763756] [<ffffffffa035d9b4>] ? device_reset+0x24/0x50 [usb_storage] [ 719.763762] [<ffffffffa035d9b4>] ? device_reset+0x24/0x50 [usb_storage] [ 719.763768] [<ffffffffa035d9b4>] device_reset+0x24/0x50 [usb_storage] [ 719.763774] [<ffffffff81523f0a>] scsi_try_bus_device_reset+0x2a/0x50 [ 719.763777] [<ffffffff8152601f>] scsi_eh_ready_devs+0x4df/0xc20 [ 719.763780] [<ffffffff81527886>] ? scsi_eh_get_sense+0x176/0x2a0 [ 719.763784] [<ffffffff81527eec>] scsi_error_handler+0x53c/0x830 [ 719.763787] [<ffffffff815279b0>] ? scsi_eh_get_sense+0x2a0/0x2a0 [ 719.763791] [<ffffffff810c452f>] kthread+0xff/0x120 [ 719.763794] [<ffffffff810c4430>] ? insert_kthread_work+0x80/0x80 [ 719.763798] [<ffffffff817eaafc>] ret_from_fork+0x7c/0xb0 [ 719.763801] [<ffffffff810c4430>] ? insert_kthread_work+0x80/0x80 [ 719.763803] 1 lock held by scsi_eh_6/537: [ 719.763804] #0: (&us_interface_key[i]){+.+.+.}, at: [<ffffffffa035d9b4>] device_reset+0x24/0x50 [usb_storage] [ 719.763812] INFO: task usb-storage:539 blocked for more than 120 seconds. [ 719.763814] Not tainted 3.14.6-200.fc20.x86_64+debug #1 [ 719.763815] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 719.763816] usb-storage D ffff88081351a590 5032 539 2 0x00000000 [ 719.763820] ffff8808025ebae0 0000000000000046 ffff880800c28000 ffff8808025ebfd8 [ 719.763823] 00000000001d5800 00000000001d5800 ffff880800c28000 7fffffffffffffff [ 719.763827] ffff880810ca6dd0 ffff880810ca6dc8 ffff880800c28000 0000000000000000 [ 719.763830] Call Trace: [ 719.763833] [<ffffffff817daad9>] schedule+0x29/0x70 [ 719.763836] [<ffffffff817d9a59>] schedule_timeout+0x1f9/0x350 [ 719.763841] [<ffffffff810fb9e9>] ? mark_held_locks+0xb9/0x140 [ 719.763844] [<ffffffff817dff8c>] ? _raw_spin_unlock_irq+0x2c/0x40 [ 719.763848] [<ffffffff810fbb75>] ? trace_hardirqs_on_caller+0x105/0x1d0 [ 719.763851] [<ffffffff817dc02c>] wait_for_completion+0xfc/0x140 [ 719.763855] [<ffffffff810d9a50>] ? wake_up_state+0x20/0x20 [ 719.763859] [<ffffffff815845fd>] usb_sg_wait+0x12d/0x190 [ 719.763865] [<ffffffffa035e4db>] usb_stor_bulk_transfer_sglist.part.4+0x8b/0xf0 [usb_storage] [ 719.763871] [<ffffffffa035e5b1>] usb_stor_bulk_srb+0x71/0x80 [usb_storage] [ 719.763878] [<ffffffffa035e71c>] usb_stor_Bulk_transport+0x15c/0x360 [usb_storage] [ 719.763884] [<ffffffffa035ef9b>] usb_stor_invoke_transport+0x3b/0x570 [usb_storage] [ 719.763887] [<ffffffff810fb9e9>] ? mark_held_locks+0xb9/0x140 [ 719.763890] [<ffffffff817dff8c>] ? _raw_spin_unlock_irq+0x2c/0x40 [ 719.763896] [<ffffffffa035dbce>] usb_stor_transparent_scsi_command+0xe/0x10 [usb_storage] [ 719.763903] [<ffffffffa035fe96>] usb_stor_control_thread+0x176/0x290 [usb_storage] [ 719.763909] [<ffffffffa035fd20>] ? fill_inquiry_response+0x20/0x20 [usb_storage] [ 719.763915] [<ffffffffa035fd20>] ? fill_inquiry_response+0x20/0x20 [usb_storage] [ 719.763918] [<ffffffff810c452f>] kthread+0xff/0x120 [ 719.763920] [<ffffffff810c4430>] ? insert_kthread_work+0x80/0x80 [ 719.763924] [<ffffffff817eaafc>] ret_from_fork+0x7c/0xb0 [ 719.763926] [<ffffffff810c4430>] ? insert_kthread_work+0x80/0x80 [ 719.763928] 1 lock held by usb-storage/539: [ 719.763929] #0: (&us_interface_key[i]){+.+.+.}, at: [<ffffffffa035fdaa>] usb_stor_control_thread+0x8a/0x290 [usb_storage]
*********** MASS BUG UPDATE ************** We apologize for the inconvenience. There is a large number of bugs to go through and several of them have gone stale. Due to this, we are doing a mass bug update across all of the Fedora 20 kernel bugs. Fedora 20 has now been rebased to 3.17.2-200.fc20. Please test this kernel update (or newer) and let us know if you issue has been resolved or if it is still present with the newer kernel. If you have moved on to Fedora 21, and are still experiencing this issue, please change the version to Fedora 21. If you experience different issues, please open a new bug report for those.
This bug is being closed with INSUFFICIENT_DATA as there has not been a response in over 3 weeks. If you are still experiencing this issue, please reopen and attach the relevant data from the latest kernel you are running and any data that might have been requested previously.