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Silent-Hunter
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Apprentice


Joined: 07 Jul 2013
Posts: 166

PostPosted: Tue Sep 06, 2016 6:35 pm    Post subject: Extremely slow USB 3.0 Reply with quote

I'm having a problem with very slow USB 3.0 ports. It's taking about half an hour to transfer only 200MB or so.

I also have some very strange output in dmesg:

Code:
[11654.409799] usb 4-2: new SuperSpeed USB device number 2 using xhci_hcd
[11654.426260] usb 4-2: New USB device found, idVendor=090c, idProduct=1000
[11654.426264] usb 4-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[11654.426266] usb 4-2: Product: Flash Drive FIT
[11654.426267] usb 4-2: Manufacturer: Samsung
[11654.426268] usb 4-2: SerialNumber: 0363916010029679
[11654.430181] usb-storage 4-2:1.0: USB Mass Storage device detected
[11654.430359] scsi host4: usb-storage 4-2:1.0
[11655.941192] scsi 4:0:0:0: Direct-Access     Samsung  Flash Drive FIT  1100 PQ: 0 ANSI: 6
[11655.941733] sd 4:0:0:0: Attached scsi generic sg3 type 0
[11655.942236] sd 4:0:0:0: [sdc] 250609664 512-byte logical blocks: (128 GB/120 GiB)
[11655.942677] sd 4:0:0:0: [sdc] Write Protect is off
[11655.942680] sd 4:0:0:0: [sdc] Mode Sense: 43 00 00 00
[11655.943114] sd 4:0:0:0: [sdc] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[11655.951315]  sdc: sdc1
[11655.952960] sd 4:0:0:0: [sdc] Attached SCSI removable disk
[11671.470841] EXT2-fs (sdc1): warning: mounting unchecked fs, running e2fsck is recommended
[11999.044279] INFO: task sync:10627 blocked for more than 120 seconds.
[11999.044283]       Tainted: P           OE   4.4.6-gentoo #1
[11999.044283] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[11999.044285] sync            D ffff8804034d3df8     0 10627  10087 0x00000000
[11999.044288]  ffff8804034d3df8 ffffffff81a0f540 ffff8803d72e8780 ffff8804034d3e20
[11999.044290]  0000000000000246 ffff8804034d4000 ffff880079c42728 ffff880079c423d8
[11999.044292]  ffff8804034d3e7c ffff88045c655870 ffff8804034d3e10 ffffffff815d33f5
[11999.044294] Call Trace:
[11999.044300]  [<ffffffff815d33f5>] schedule+0x35/0x80
[11999.044305]  [<ffffffff811c7399>] wb_wait_for_completion+0x49/0x80
[11999.044307]  [<ffffffff81094630>] ? wait_woken+0x80/0x80
[11999.044310]  [<ffffffff811c7896>] sync_inodes_sb+0x96/0x1c0
[11999.044312]  [<ffffffff811ccef0>] ? SyS_tee+0x3d0/0x3d0
[11999.044313]  [<ffffffff811ccf05>] sync_inodes_one_sb+0x15/0x20
[11999.044318]  [<ffffffff811a0d09>] iterate_supers+0xa9/0xf0
[11999.044319]  [<ffffffff811cd225>] sys_sync+0x35/0x90
[11999.044322]  [<ffffffff815d6a5b>] entry_SYSCALL_64_fastpath+0x16/0x6e
[12119.033754] INFO: task sync:10627 blocked for more than 120 seconds.
[12119.033757]       Tainted: P           OE   4.4.6-gentoo #1
[12119.033758] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[12119.033759] sync            D ffff8804034d3df8     0 10627  10087 0x00000000
[12119.033763]  ffff8804034d3df8 ffffffff81a0f540 ffff8803d72e8780 ffff8804034d3e20
[12119.033765]  0000000000000246 ffff8804034d4000 ffff880079c42728 ffff880079c423d8
[12119.033766]  ffff8804034d3e7c ffff88045c655870 ffff8804034d3e10 ffffffff815d33f5
[12119.033768] Call Trace:
[12119.033775]  [<ffffffff815d33f5>] schedule+0x35/0x80
[12119.033780]  [<ffffffff811c7399>] wb_wait_for_completion+0x49/0x80
[12119.033783]  [<ffffffff81094630>] ? wait_woken+0x80/0x80
[12119.033785]  [<ffffffff811c7896>] sync_inodes_sb+0x96/0x1c0
[12119.033787]  [<ffffffff811ccef0>] ? SyS_tee+0x3d0/0x3d0
[12119.033789]  [<ffffffff811ccf05>] sync_inodes_one_sb+0x15/0x20
[12119.033793]  [<ffffffff811a0d09>] iterate_supers+0xa9/0xf0
[12119.033795]  [<ffffffff811cd225>] sys_sync+0x35/0x90
[12119.033798]  [<ffffffff815d6a5b>] entry_SYSCALL_64_fastpath+0x16/0x6e
[12239.023226] INFO: task sync:10627 blocked for more than 120 seconds.
[12239.023229]       Tainted: P           OE   4.4.6-gentoo #1
[12239.023230] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[12239.023231] sync            D ffff8804034d3df8     0 10627  10087 0x00000000
[12239.023235]  ffff8804034d3df8 ffffffff81a0f540 ffff8803d72e8780 ffff8804034d3e20
[12239.023237]  0000000000000246 ffff8804034d4000 ffff880079c42728 ffff880079c423d8
[12239.023238]  ffff8804034d3e7c ffff88045c655870 ffff8804034d3e10 ffffffff815d33f5
[12239.023240] Call Trace:
[12239.023246]  [<ffffffff815d33f5>] schedule+0x35/0x80
[12239.023250]  [<ffffffff811c7399>] wb_wait_for_completion+0x49/0x80
[12239.023252]  [<ffffffff81094630>] ? wait_woken+0x80/0x80
[12239.023254]  [<ffffffff811c7896>] sync_inodes_sb+0x96/0x1c0
[12239.023256]  [<ffffffff811ccef0>] ? SyS_tee+0x3d0/0x3d0
[12239.023258]  [<ffffffff811ccf05>] sync_inodes_one_sb+0x15/0x20
[12239.023261]  [<ffffffff811a0d09>] iterate_supers+0xa9/0xf0
[12239.023263]  [<ffffffff811cd225>] sys_sync+0x35/0x90
[12239.023266]  [<ffffffff815d6a5b>] entry_SYSCALL_64_fastpath+0x16/0x6e
[12359.012797] INFO: task sync:10627 blocked for more than 120 seconds.
[12359.012800]       Tainted: P           OE   4.4.6-gentoo #1
[12359.012801] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[12359.012803] sync            D ffff8804034d3df8     0 10627  10087 0x00000000
[12359.012806]  ffff8804034d3df8 ffffffff81a0f540 ffff8803d72e8780 ffff8804034d3e20
[12359.012808]  0000000000000246 ffff8804034d4000 ffff880079c42728 ffff880079c423d8
[12359.012810]  ffff8804034d3e7c ffff88045c655870 ffff8804034d3e10 ffffffff815d33f5
[12359.012812] Call Trace:
[12359.012818]  [<ffffffff815d33f5>] schedule+0x35/0x80
[12359.012823]  [<ffffffff811c7399>] wb_wait_for_completion+0x49/0x80
[12359.012826]  [<ffffffff81094630>] ? wait_woken+0x80/0x80
[12359.012828]  [<ffffffff811c7896>] sync_inodes_sb+0x96/0x1c0
[12359.012830]  [<ffffffff811ccef0>] ? SyS_tee+0x3d0/0x3d0
[12359.012832]  [<ffffffff811ccf05>] sync_inodes_one_sb+0x15/0x20
[12359.012836]  [<ffffffff811a0d09>] iterate_supers+0xa9/0xf0
[12359.012838]  [<ffffffff811cd225>] sys_sync+0x35/0x90
[12359.012841]  [<ffffffff815d6a5b>] entry_SYSCALL_64_fastpath+0x16/0x6e
[12598.991759] INFO: task kworker/u16:4:10537 blocked for more than 120 seconds.
[12598.991763]       Tainted: P           OE   4.4.6-gentoo #1
[12598.991764] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[12598.991765] kworker/u16:4   D ffff880066663ab8     0 10537      2 0x00000000
[12598.991773] Workqueue: events_freezable_power_ disk_events_workfn
[12598.991774]  ffff880066663ab8 ffff88046cee02c0 ffff8803d73c95c0 ffff880066663b28
[12598.991776]  ffffffff815d5810 ffff880066664000 ffff88047f055680 7fffffffffffffff
[12598.991778]  ffff880467d87e60 ffff880079c42248 ffff880066663ad0 ffffffff815d33f5
[12598.991780] Call Trace:
[12598.991786]  [<ffffffff815d5810>] ? schedule_timeout+0x130/0x250
[12598.991788]  [<ffffffff815d33f5>] schedule+0x35/0x80
[12598.991790]  [<ffffffff815d58cf>] schedule_timeout+0x1ef/0x250
[12598.991794]  [<ffffffff810fbd06>] ? delayacct_end+0x56/0x60
[12598.991795]  [<ffffffff810fbe10>] ? __delayacct_blkio_end+0x30/0x50
[12598.991797]  [<ffffffff815d294d>] ? io_schedule_timeout+0xdd/0x110
[12598.991801]  [<ffffffff810c1227>] ? ktime_get+0x37/0xb0
[12598.991803]  [<ffffffff815d2914>] io_schedule_timeout+0xa4/0x110
[12598.991806]  [<ffffffff812702b7>] get_request+0x3c7/0x760
[12598.991809]  [<ffffffff81094630>] ? wait_woken+0x80/0x80
[12598.991810]  [<ffffffff812706c8>] blk_get_request+0x78/0xe0
[12598.991812]  [<ffffffff81270977>] ? blk_put_request+0x57/0x60
[12598.991815]  [<ffffffff813d687d>] scsi_execute+0x3d/0x1d0
[12598.991817]  [<ffffffff813d6afe>] scsi_execute_req_flags+0x8e/0xf0
[12598.991818]  [<ffffffff813d6faf>] scsi_test_unit_ready+0x8f/0x140
[12598.991823]  [<ffffffffa0133f74>] sd_check_events+0x134/0x190 [sd_mod]
[12598.991825]  [<ffffffff81280f2e>] disk_check_events+0x4e/0x120
[12598.991827]  [<ffffffff81281016>] disk_events_workfn+0x16/0x20
[12598.991832]  [<ffffffff8106f47e>] process_one_work+0x13e/0x3b0
[12598.991834]  [<ffffffff8106f73e>] worker_thread+0x4e/0x450
[12598.991836]  [<ffffffff8106f6f0>] ? process_one_work+0x3b0/0x3b0
[12598.991838]  [<ffffffff8106f6f0>] ? process_one_work+0x3b0/0x3b0
[12598.991840]  [<ffffffff81074f29>] kthread+0xc9/0xe0
[12598.991842]  [<ffffffff81074e60>] ? kthread_create_on_node+0x170/0x170
[12598.991843]  [<ffffffff815d6dff>] ret_from_fork+0x3f/0x70
[12598.991845]  [<ffffffff81074e60>] ? kthread_create_on_node+0x170/0x170
[12958.960215] INFO: task kworker/u16:4:10537 blocked for more than 120 seconds.
[12958.960219]       Tainted: P           OE   4.4.6-gentoo #1
[12958.960219] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[12958.960221] kworker/u16:4   D ffff880066663ab8     0 10537      2 0x00000000
[12958.960229] Workqueue: events_freezable_power_ disk_events_workfn
[12958.960230]  ffff880066663ab8 ffff88046cee8300 ffff8803d73c95c0 ffff880066663b28
[12958.960232]  ffffffff815d5810 ffff880066664000 ffff88047f095680 7fffffffffffffff
[12958.960234]  ffff880467d87e60 ffff880079c42248 ffff880066663ad0 ffffffff815d33f5
[12958.960236] Call Trace:
[12958.960242]  [<ffffffff815d5810>] ? schedule_timeout+0x130/0x250
[12958.960244]  [<ffffffff815d33f5>] schedule+0x35/0x80
[12958.960246]  [<ffffffff815d58cf>] schedule_timeout+0x1ef/0x250
[12958.960249]  [<ffffffff810fbd06>] ? delayacct_end+0x56/0x60
[12958.960251]  [<ffffffff810fbe10>] ? __delayacct_blkio_end+0x30/0x50
[12958.960253]  [<ffffffff815d294d>] ? io_schedule_timeout+0xdd/0x110
[12958.960257]  [<ffffffff810c1227>] ? ktime_get+0x37/0xb0
[12958.960259]  [<ffffffff815d2914>] io_schedule_timeout+0xa4/0x110
[12958.960262]  [<ffffffff812702b7>] get_request+0x3c7/0x760
[12958.960264]  [<ffffffff81094630>] ? wait_woken+0x80/0x80
[12958.960266]  [<ffffffff812706c8>] blk_get_request+0x78/0xe0
[12958.960267]  [<ffffffff81270977>] ? blk_put_request+0x57/0x60
[12958.960270]  [<ffffffff813d687d>] scsi_execute+0x3d/0x1d0
[12958.960272]  [<ffffffff813d6afe>] scsi_execute_req_flags+0x8e/0xf0
[12958.960274]  [<ffffffff813d6faf>] scsi_test_unit_ready+0x8f/0x140
[12958.960279]  [<ffffffffa0133f74>] sd_check_events+0x134/0x190 [sd_mod]
[12958.960281]  [<ffffffff81280f2e>] disk_check_events+0x4e/0x120
[12958.960283]  [<ffffffff81281016>] disk_events_workfn+0x16/0x20
[12958.960287]  [<ffffffff8106f47e>] process_one_work+0x13e/0x3b0
[12958.960290]  [<ffffffff8106f73e>] worker_thread+0x4e/0x450
[12958.960292]  [<ffffffff8106f6f0>] ? process_one_work+0x3b0/0x3b0
[12958.960294]  [<ffffffff8106f6f0>] ? process_one_work+0x3b0/0x3b0
[12958.960296]  [<ffffffff81074f29>] kthread+0xc9/0xe0
[12958.960297]  [<ffffffff81074e60>] ? kthread_create_on_node+0x170/0x170
[12958.960299]  [<ffffffff815d6dff>] ret_from_fork+0x3f/0x70
[12958.960301]  [<ffffffff81074e60>] ? kthread_create_on_node+0x170/0x170
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Roman_Gruber
Advocate
Advocate


Joined: 03 Oct 2006
Posts: 3806
Location: Austro Bavaria

PostPosted: Wed Sep 07, 2016 8:01 am    Post subject: Reply with quote

You may share your kernel.config and version via pastebin url here.

you may check those usb options in your kernel. I think xhci or what it iscalled is needed and some others

you may provide lspci --kk; lsusb

You may check with a livecd, like sysrescue-cd if that issue happens too

you may check if the hardware is fine, => test it with sysrescue-cd, and visual inspectino of ports and cables / connections => usb cables lack on quality these days,
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