Hi I had a look at Kernel bugzilla and all mention of USB said "please send to the linux-usb mailing list" so hopefully I've come to the right place. Using Kernel 4.5.0rc5 (after finding the problem on 4.4) When I attach my Lacie rugged SSD (dual TB/USB 3.0) to USB 3.0 (Asus Z97I-Plus motherboard) there is a delay of about 10 minutes before it appears in the device tree, then a further delay before it's accessible. I believe this also causes some kind of deadlock - if it's connected on boot for example, then boot will lock up until the drive is registered. It works perfectly when connected to USB 2.0. Switching ECHI hand-off on or off in the BIOS doesn't make any difference. dmesg output so far: [ 755.466283] usb 4-4: new SuperSpeed USB device number 3 using xhci_hcd [ 755.482907] usb 4-4: New USB device found, idVendor=059f, idProduct=1062 [ 755.482909] usb 4-4: New USB device strings: Mfr=2, Product=3, SerialNumber=1 [ 755.482910] usb 4-4: Product: Rugged USB3 THB [ 755.482911] usb 4-4: Manufacturer: LaCie [ 755.482912] usb 4-4: SerialNumber: 0000000005c2e3851077 [ 755.485215] scsi host7: uas [ 755.485510] scsi 7:0:0:0: Direct-Access LaCie Rugged THB USB3 051E PQ: 0 ANSI: 6 [ 755.518480] sd 7:0:0:0: Attached scsi generic sg0 type 0 [ 757.438397] sd 7:0:0:0: [sda] 250069680 512-byte logical blocks: (128 GB/119 GiB) [ 757.438703] sd 7:0:0:0: [sda] Write Protect is off [ 757.438705] sd 7:0:0:0: [sda] Mode Sense: 43 00 00 00 [ 757.438783] sd 7:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 787.873613] sd 7:0:0:0: tag#0 uas_eh_abort_handler 0 uas-tag 1 inflight: IN [ 787.873616] sd 7:0:0:0: tag#0 CDB: Report supported operation codes a3 0c 01 12 00 00 00 00 02 00 00 00 [ 787.873651] scsi host7: uas_eh_bus_reset_handler start [ 787.985865] usb 4-4: reset SuperSpeed USB device number 3 using xhci_hcd [ 788.003219] scsi host7: uas_eh_bus_reset_handler success [ 818.849043] sd 7:0:0:0: tag#0 uas_eh_abort_handler 0 uas-tag 1 inflight: IN [ 818.849047] sd 7:0:0:0: tag#0 CDB: Report supported operation codes a3 0c 01 12 00 00 00 00 02 00 00 00 [ 818.849087] scsi host7: uas_eh_bus_reset_handler start [ 818.961272] usb 4-4: reset SuperSpeed USB device number 3 using xhci_hcd [ 818.982588] scsi host7: uas_eh_bus_reset_handler success [ 849.888497] sd 7:0:0:0: tag#0 uas_eh_abort_handler 0 uas-tag 1 inflight: IN [ 849.888503] sd 7:0:0:0: tag#0 CDB: Report supported operation codes a3 0c 01 12 00 00 00 00 02 00 00 00 [ 849.888561] scsi host7: uas_eh_bus_reset_handler start [ 850.000714] usb 4-4: reset SuperSpeed USB device number 3 using xhci_hcd [ 850.018044] scsi host7: uas_eh_bus_reset_handler success [ 880.863950] sd 7:0:0:0: tag#0 uas_eh_abort_handler 0 uas-tag 1 inflight: IN [ 880.863959] sd 7:0:0:0: tag#0 CDB: Report supported operation codes a3 0c 01 12 00 00 00 00 02 00 00 00 [ 880.864030] scsi host7: uas_eh_bus_reset_handler start [ 880.976126] usb 4-4: reset SuperSpeed USB device number 3 using xhci_hcd [ 880.993563] scsi host7: uas_eh_bus_reset_handler success [ 911.839399] sd 7:0:0:0: tag#0 uas_eh_abort_handler 0 uas-tag 1 inflight: IN [ 911.839403] sd 7:0:0:0: tag#0 CDB: Report supported operation codes a3 0c 01 93 00 00 00 00 02 00 00 00 [ 911.839481] scsi host7: uas_eh_bus_reset_handler start [ 911.951580] usb 4-4: reset SuperSpeed USB device number 3 using xhci_hcd [ 911.968904] scsi host7: uas_eh_bus_reset_handler success [ 942.814853] sd 7:0:0:0: tag#0 uas_eh_abort_handler 0 uas-tag 1 inflight: IN [ 942.814857] sd 7:0:0:0: tag#0 CDB: Report supported operation codes a3 0c 01 93 00 00 00 00 02 00 00 00 [ 942.814933] scsi host7: uas_eh_bus_reset_handler start [ 942.927070] usb 4-4: reset SuperSpeed USB device number 3 using xhci_hcd [ 942.944600] scsi host7: uas_eh_bus_reset_handler success [ 973.854318] sd 7:0:0:0: tag#0 uas_eh_abort_handler 0 uas-tag 1 inflight: IN [ 973.854323] sd 7:0:0:0: tag#0 CDB: Report supported operation codes a3 0c 01 93 00 00 00 00 02 00 00 00 [ 973.854421] scsi host7: uas_eh_bus_reset_handler start [ 973.966517] usb 4-4: reset SuperSpeed USB device number 3 using xhci_hcd [ 973.983761] scsi host7: uas_eh_bus_reset_handler success [ 1004.829764] sd 7:0:0:0: tag#0 uas_eh_abort_handler 0 uas-tag 1 inflight: IN [ 1004.829768] sd 7:0:0:0: tag#0 CDB: Report supported operation codes a3 0c 01 93 00 00 00 00 02 00 00 00 [ 1004.829835] scsi host7: uas_eh_bus_reset_handler start [ 1004.941942] usb 4-4: reset SuperSpeed USB device number 3 using xhci_hcd [ 1004.959242] scsi host7: uas_eh_bus_reset_handler success [ 1035.869227] sd 7:0:0:0: tag#0 uas_eh_abort_handler 0 uas-tag 1 inflight: IN [ 1035.869232] sd 7:0:0:0: tag#0 CDB: Report supported operation codes a3 0c 01 41 00 00 00 00 02 00 00 00 [ 1035.869322] scsi host7: uas_eh_bus_reset_handler start [ 1035.981432] usb 4-4: reset SuperSpeed USB device number 3 using xhci_hcd [ 1035.998729] scsi host7: uas_eh_bus_reset_handler success [ 1066.844639] sd 7:0:0:0: tag#0 uas_eh_abort_handler 0 uas-tag 1 inflight: IN [ 1066.844648] sd 7:0:0:0: tag#0 CDB: Report supported operation codes a3 0c 01 41 00 00 00 00 02 00 00 00 [ 1066.844781] scsi host7: uas_eh_bus_reset_handler start [ 1066.956805] usb 4-4: reset SuperSpeed USB device number 3 using xhci_hcd [ 1066.974105] scsi host7: uas_eh_bus_reset_handler success [ 1097.819805] sd 7:0:0:0: tag#0 uas_eh_abort_handler 0 uas-tag 1 inflight: IN [ 1097.819810] sd 7:0:0:0: tag#0 CDB: Report supported operation codes a3 0c 01 41 00 00 00 00 02 00 00 00 [ 1097.819893] scsi host7: uas_eh_bus_reset_handler start [ 1097.932006] usb 4-4: reset SuperSpeed USB device number 3 using xhci_hcd [ 1097.949343] scsi host7: uas_eh_bus_reset_handler success [ 1128.795059] sd 7:0:0:0: tag#0 uas_eh_abort_handler 0 uas-tag 1 inflight: IN [ 1128.795068] sd 7:0:0:0: tag#0 CDB: Report supported operation codes a3 0c 01 41 00 00 00 00 02 00 00 00 [ 1128.795194] scsi host7: uas_eh_bus_reset_handler start [ 1128.907245] usb 4-4: reset SuperSpeed USB device number 3 using xhci_hcd [ 1128.924648] scsi host7: uas_eh_bus_reset_handler success [ 1159.898288] sd 7:0:0:0: tag#0 uas_eh_abort_handler 0 uas-tag 1 inflight: IN [ 1159.898293] sd 7:0:0:0: tag#0 CDB: Report supported operation codes a3 0c 01 12 00 00 00 00 02 00 00 00 [ 1159.898399] scsi host7: uas_eh_bus_reset_handler start [ 1160.010488] usb 4-4: reset SuperSpeed USB device number 3 using xhci_hcd [ 1160.027688] scsi host7: uas_eh_bus_reset_handler success [ 1190.873549] sd 7:0:0:0: tag#0 uas_eh_abort_handler 0 uas-tag 1 inflight: IN [ 1190.873552] sd 7:0:0:0: tag#0 CDB: Report supported operation codes a3 0c 01 12 00 00 00 00 02 00 00 00 [ 1190.873619] scsi host7: uas_eh_bus_reset_handler start [ 1190.985761] usb 4-4: reset SuperSpeed USB device number 3 using xhci_hcd [ 1191.003085] scsi host7: uas_eh_bus_reset_handler success [ 1221.848846] sd 7:0:0:0: tag#0 uas_eh_abort_handler 0 uas-tag 1 inflight: IN [ 1221.848851] sd 7:0:0:0: tag#0 CDB: Report supported operation codes a3 0c 01 12 00 00 00 00 02 00 00 00 [ 1221.848926] scsi host7: uas_eh_bus_reset_handler start [ 1221.961052] usb 4-4: reset SuperSpeed USB device number 3 using xhci_hcd [ 1221.978382] scsi host7: uas_eh_bus_reset_handler success [ 1252.824195] sd 7:0:0:0: tag#0 uas_eh_abort_handler 0 uas-tag 1 inflight: IN [ 1252.824207] sd 7:0:0:0: tag#0 CDB: Report supported operation codes a3 0c 01 12 00 00 00 00 02 00 00 00 [ 1252.824332] scsi host7: uas_eh_bus_reset_handler start [ 1252.936410] usb 4-4: reset SuperSpeed USB device number 3 using xhci_hcd [ 1252.954123] scsi host7: uas_eh_bus_reset_handler success [ 1283.799471] sd 7:0:0:0: tag#0 uas_eh_abort_handler 0 uas-tag 1 inflight: IN [ 1283.799475] sd 7:0:0:0: tag#0 CDB: Report supported operation codes a3 0c 01 93 00 00 00 00 02 00 00 00 [ 1283.799542] scsi host7: uas_eh_bus_reset_handler start [ 1283.911682] usb 4-4: reset SuperSpeed USB device number 3 using xhci_hcd [ 1283.929024] scsi host7: uas_eh_bus_reset_handler success [ 1314.838810] sd 7:0:0:0: tag#0 uas_eh_abort_handler 0 uas-tag 1 inflight: IN [ 1314.838814] sd 7:0:0:0: tag#0 CDB: Report supported operation codes a3 0c 01 93 00 00 00 00 02 00 00 00 [ 1314.838890] scsi host7: uas_eh_bus_reset_handler start [ 1314.951015] usb 4-4: reset SuperSpeed USB device number 3 using xhci_hcd [ 1314.968338] scsi host7: uas_eh_bus_reset_handler success [ 1345.878154] sd 7:0:0:0: tag#0 uas_eh_abort_handler 0 uas-tag 1 inflight: IN [ 1345.878159] sd 7:0:0:0: tag#0 CDB: Report supported operation codes a3 0c 01 93 00 00 00 00 02 00 00 00 [ 1345.878252] scsi host7: uas_eh_bus_reset_handler start [ 1345.990362] usb 4-4: reset SuperSpeed USB device number 3 using xhci_hcd [ 1346.007718] scsi host7: uas_eh_bus_reset_handler success [ 1376.853546] sd 7:0:0:0: tag#0 uas_eh_abort_handler 0 uas-tag 1 inflight: IN [ 1376.853555] sd 7:0:0:0: tag#0 CDB: Report supported operation codes a3 0c 01 93 00 00 00 00 02 00 00 00 [ 1376.853667] scsi host7: uas_eh_bus_reset_handler start [ 1376.965743] usb 4-4: reset SuperSpeed USB device number 3 using xhci_hcd [ 1376.983135] scsi host7: uas_eh_bus_reset_handler success [ 1407.828870] sd 7:0:0:0: tag#0 uas_eh_abort_handler 0 uas-tag 1 inflight: IN [ 1407.828873] sd 7:0:0:0: tag#0 CDB: Report supported operation codes a3 0c 01 41 00 00 00 00 02 00 00 00 [ 1407.828951] scsi host7: uas_eh_bus_reset_handler start [ 1407.941131] usb 4-4: reset SuperSpeed USB device number 3 using xhci_hcd [ 1407.958450] scsi host7: uas_eh_bus_reset_handler success [ 1438.804243] sd 7:0:0:0: tag#0 uas_eh_abort_handler 0 uas-tag 1 inflight: IN [ 1438.804246] sd 7:0:0:0: tag#0 CDB: Report supported operation codes a3 0c 01 41 00 00 00 00 02 00 00 00 [ 1438.804312] scsi host7: uas_eh_bus_reset_handler start [ 1438.916457] usb 4-4: reset SuperSpeed USB device number 3 using xhci_hcd [ 1438.933789] scsi host7: uas_eh_bus_reset_handler success [ 1469.843606] sd 7:0:0:0: tag#0 uas_eh_abort_handler 0 uas-tag 1 inflight: IN [ 1469.843609] sd 7:0:0:0: tag#0 CDB: Report supported operation codes a3 0c 01 41 00 00 00 00 02 00 00 00 [ 1469.843657] scsi host7: uas_eh_bus_reset_handler start [ 1469.955773] usb 4-4: reset SuperSpeed USB device number 3 using xhci_hcd [ 1469.973198] scsi host7: uas_eh_bus_reset_handler success [ 1500.819006] sd 7:0:0:0: tag#0 uas_eh_abort_handler 0 uas-tag 1 inflight: IN [ 1500.819009] sd 7:0:0:0: tag#0 CDB: Report supported operation codes a3 0c 01 41 00 00 00 00 02 00 00 00 [ 1500.819076] scsi host7: uas_eh_bus_reset_handler start [ 1500.931219] usb 4-4: reset SuperSpeed USB device number 3 using xhci_hcd [ 1500.948610] scsi host7: uas_eh_bus_reset_handler success [ 1500.950336] sda: sda1 sda2 sda3 [ 1501.074438] xhci_hcd 0000:00:14.0: ERROR Unknown event condition 34, HC probably busted [ 1501.074440] xhci_hcd 0000:00:14.0: ERROR Unknown event condition 34, HC probably busted [ 1501.074442] xhci_hcd 0000:00:14.0: ERROR Transfer event for disabled endpoint or incorrect stream ring [ 1501.074444] xhci_hcd 0000:00:14.0: @00000000dab269d0 00000000 00000000 06000000 06038001 [ 1501.075082] usb 4-4: cmd cmplt err -32 [ 1531.858407] sd 7:0:0:0: [sda] tag#2 uas_eh_abort_handler 0 uas-tag 3 inflight: CMD IN [ 1531.858413] sd 7:0:0:0: [sda] tag#2 CDB: Read(10) 28 00 00 66 48 00 00 00 08 00 [ 1531.858484] sd 7:0:0:0: [sda] tag#4 uas_eh_abort_handler 0 uas-tag 5 inflight: CMD IN [ 1531.858488] sd 7:0:0:0: [sda] tag#4 CDB: Read(10) 28 00 0e e3 c1 88 00 00 78 00 [ 1531.858503] sd 7:0:0:0: [sda] tag#1 uas_eh_abort_handler 0 uas-tag 2 inflight: CMD [ 1531.858505] sd 7:0:0:0: [sda] tag#1 CDB: Read(10) 28 00 0e e3 c1 00 00 00 80 00 [ 1531.858507] sd 7:0:0:0: tag#0 uas_eh_abort_handler 0 uas-tag 1 inflight: IN [ 1531.858510] sd 7:0:0:0: tag#0 CDB: Report supported operation codes a3 0c 01 12 00 00 00 00 02 00 00 00 [ 1531.858615] scsi host7: uas_eh_bus_reset_handler start [ 1531.970604] usb 4-4: reset SuperSpeed USB device number 3 using xhci_hcd [ 1531.991925] scsi host7: uas_eh_bus_reset_handler success [ 1562.833824] sd 7:0:0:0: tag#3 uas_eh_abort_handler 0 uas-tag 4 inflight: IN [ 1562.833839] sd 7:0:0:0: tag#3 CDB: Report supported operation codes a3 0c 01 12 00 00 00 00 02 00 00 00 [ 1562.833927] sd 7:0:0:0: [sda] tag#2 uas_eh_abort_handler 0 uas-tag 3 inflight: IN [ 1562.833942] sd 7:0:0:0: [sda] tag#2 CDB: Read(10) 28 00 0e e3 c1 00 00 00 80 00 [ 1562.834028] sd 7:0:0:0: [sda] tag#1 uas_eh_abort_handler 0 uas-tag 2 inflight: IN [ 1562.834043] sd 7:0:0:0: [sda] tag#1 CDB: Read(10) 28 00 0e e3 c1 88 00 00 78 00 [ 1562.834128] sd 7:0:0:0: [sda] tag#0 uas_eh_abort_handler 0 uas-tag 1 inflight: IN [ 1562.834143] sd 7:0:0:0: [sda] tag#0 CDB: Read(10) 28 00 00 66 48 00 00 00 08 00 [ 1562.834288] scsi host7: uas_eh_bus_reset_handler start [ 1562.946016] usb 4-4: reset SuperSpeed USB device number 3 using xhci_hcd [ 1562.963345] scsi host7: uas_eh_bus_reset_handler success [ 1593.809237] sd 7:0:0:0: [sda] tag#3 uas_eh_abort_handler 0 uas-tag 4 inflight: IN [ 1593.809249] sd 7:0:0:0: [sda] tag#3 CDB: Read(10) 28 00 00 66 48 00 00 00 08 00 [ 1593.809350] sd 7:0:0:0: [sda] tag#2 uas_eh_abort_handler 0 uas-tag 3 inflight: IN [ 1593.809360] sd 7:0:0:0: [sda] tag#2 CDB: Read(10) 28 00 0e e3 c1 88 00 00 78 00 [ 1593.809462] sd 7:0:0:0: [sda] tag#1 uas_eh_abort_handler 0 uas-tag 2 inflight: IN [ 1593.809472] sd 7:0:0:0: [sda] tag#1 CDB: Read(10) 28 00 0e e3 c1 00 00 00 80 00 [ 1593.809568] sd 7:0:0:0: tag#0 uas_eh_abort_handler 0 uas-tag 1 inflight: IN [ 1593.809578] sd 7:0:0:0: tag#0 CDB: Report supported operation codes a3 0c 01 12 00 00 00 00 02 00 00 00 [ 1593.809697] scsi host7: uas_eh_bus_reset_handler start [ 1593.921473] usb 4-4: reset SuperSpeed USB device number 3 using xhci_hcd [ 1593.939027] scsi host7: uas_eh_bus_reset_handler success [ 1624.784630] sd 7:0:0:0: tag#3 uas_eh_abort_handler 0 uas-tag 4 inflight: IN [ 1624.784641] sd 7:0:0:0: tag#3 CDB: Report supported operation codes a3 0c 01 12 00 00 00 00 02 00 00 00 [ 1624.784682] sd 7:0:0:0: [sda] tag#2 uas_eh_abort_handler 0 uas-tag 3 inflight: IN [ 1624.784688] sd 7:0:0:0: [sda] tag#2 CDB: Read(10) 28 00 0e e3 c1 00 00 00 80 00 [ 1624.784722] sd 7:0:0:0: [sda] tag#1 uas_eh_abort_handler 0 uas-tag 2 inflight: IN [ 1624.784726] sd 7:0:0:0: [sda] tag#1 CDB: Read(10) 28 00 0e e3 c1 88 00 00 78 00 [ 1624.784757] sd 7:0:0:0: [sda] tag#0 uas_eh_abort_handler 0 uas-tag 1 inflight: IN [ 1624.784761] sd 7:0:0:0: [sda] tag#0 CDB: Read(10) 28 00 00 66 48 00 00 00 08 00 [ 1624.784864] scsi host7: uas_eh_bus_reset_handler start [ 1624.896853] usb 4-4: reset SuperSpeed USB device number 3 using xhci_hcd [ 1624.914337] scsi host7: uas_eh_bus_reset_handler success [ 1655.824020] sd 7:0:0:0: [sda] tag#4 uas_eh_abort_handler 0 uas-tag 5 inflight: IN [ 1655.824025] sd 7:0:0:0: [sda] tag#4 CDB: Read(10) 28 00 0e e7 c2 a8 00 00 08 00 [ 1655.824101] sd 7:0:0:0: tag#3 uas_eh_abort_handler 0 uas-tag 4 inflight: IN [ 1655.824102] sd 7:0:0:0: tag#3 CDB: Report supported operation codes a3 0c 01 93 00 00 00 00 02 00 00 00 [ 1655.824176] sd 7:0:0:0: [sda] tag#2 uas_eh_abort_handler 0 uas-tag 3 inflight: IN [ 1655.824177] sd 7:0:0:0: [sda] tag#2 CDB: Read(10) 28 00 00 66 48 00 00 00 08 00 [ 1655.824233] sd 7:0:0:0: [sda] tag#1 uas_eh_abort_handler 0 uas-tag 2 inflight: IN [ 1655.824234] sd 7:0:0:0: [sda] tag#1 CDB: Read(10) 28 00 0e e3 c1 88 00 00 78 00 [ 1655.824292] sd 7:0:0:0: [sda] tag#0 uas_eh_abort_handler 0 uas-tag 1 inflight: IN [ 1655.824293] sd 7:0:0:0: [sda] tag#0 CDB: Read(10) 28 00 0e e3 c1 00 00 00 80 00 [ 1655.824398] scsi host7: uas_eh_bus_reset_handler start [ 1655.936257] usb 4-4: reset SuperSpeed USB device number 3 using xhci_hcd [ 1655.953588] scsi host7: uas_eh_bus_reset_handler success [ 1686.863435] sd 7:0:0:0: [sda] tag#4 uas_eh_abort_handler 0 uas-tag 5 inflight: IN [ 1686.863450] sd 7:0:0:0: [sda] tag#4 CDB: Read(10) 28 00 0e e3 c1 00 00 00 80 00 [ 1686.863519] sd 7:0:0:0: [sda] tag#3 uas_eh_abort_handler 0 uas-tag 4 inflight: IN [ 1686.863521] sd 7:0:0:0: [sda] tag#3 CDB: Read(10) 28 00 0e e3 c1 88 00 00 78 00 [ 1686.863601] sd 7:0:0:0: [sda] tag#2 uas_eh_abort_handler 0 uas-tag 3 inflight: IN [ 1686.863603] sd 7:0:0:0: [sda] tag#2 CDB: Read(10) 28 00 00 66 48 00 00 00 08 00 [ 1686.863678] sd 7:0:0:0: tag#1 uas_eh_abort_handler 0 uas-tag 2 inflight: IN [ 1686.863680] sd 7:0:0:0: tag#1 CDB: Report supported operation codes a3 0c 01 93 00 00 00 00 02 00 00 00 [ 1686.863755] sd 7:0:0:0: [sda] tag#0 uas_eh_abort_handler 0 uas-tag 1 inflight: IN [ 1686.863757] sd 7:0:0:0: [sda] tag#0 CDB: Read(10) 28 00 0e e7 c2 a8 00 00 08 00 [ 1686.863880] scsi host7: uas_eh_bus_reset_handler start [ 1686.975607] usb 4-4: reset SuperSpeed USB device number 3 using xhci_hcd [ 1686.992960] scsi host7: uas_eh_bus_reset_handler success [ 1686.993003] sd 7:0:0:0: [sda] tag#2 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_TIMEOUT [ 1686.993005] sd 7:0:0:0: [sda] tag#2 CDB: Read(10) 28 00 00 66 48 00 00 00 08 00 [ 1686.993006] blk_update_request: I/O error, dev sda, sector 6703104 [ 1686.993014] sd 7:0:0:0: [sda] tag#3 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_TIMEOUT [ 1686.993015] sd 7:0:0:0: [sda] tag#3 CDB: Read(10) 28 00 0e e3 c1 88 00 00 78 00 [ 1686.993016] blk_update_request: I/O error, dev sda, sector 249807240 [ 1686.993021] sd 7:0:0:0: [sda] tag#4 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_TIMEOUT [ 1686.993022] sd 7:0:0:0: [sda] tag#4 CDB: Read(10) 28 00 0e e3 c1 00 00 00 80 00 [ 1686.993023] blk_update_request: I/O error, dev sda, sector 249807104 [ 1717.838838] sd 7:0:0:0: [sda] tag#1 uas_eh_abort_handler 0 uas-tag 2 inflight: IN [ 1717.838844] sd 7:0:0:0: [sda] tag#1 CDB: Read(10) 28 00 0e e7 c2 a8 00 00 08 00 [ 1717.838898] sd 7:0:0:0: tag#0 uas_eh_abort_handler 0 uas-tag 1 inflight: IN [ 1717.838901] sd 7:0:0:0: tag#0 CDB: Report supported operation codes a3 0c 01 93 00 00 00 00 02 00 00 00 [ 1717.839008] scsi host7: uas_eh_bus_reset_handler start [ 1717.951077] usb 4-4: reset SuperSpeed USB device number 3 using xhci_hcd [ 1717.968932] scsi host7: uas_eh_bus_reset_handler success [ 1748.814239] sd 7:0:0:0: tag#1 uas_eh_abort_handler 0 uas-tag 2 inflight: IN [ 1748.814243] sd 7:0:0:0: tag#1 CDB: Report supported operation codes a3 0c 01 93 00 00 00 00 02 00 00 00 [ 1748.814293] sd 7:0:0:0: [sda] tag#0 uas_eh_abort_handler 0 uas-tag 1 inflight: IN [ 1748.814294] sd 7:0:0:0: [sda] tag#0 CDB: Read(10) 28 00 0e e7 c2 a8 00 00 08 00 [ 1748.814362] scsi host7: uas_eh_bus_reset_handler start [ 1748.926444] usb 4-4: reset SuperSpeed USB device number 3 using xhci_hcd [ 1748.943839] scsi host7: uas_eh_bus_reset_handler success [ 1779.853661] sd 7:0:0:0: tag#1 uas_eh_abort_handler 0 uas-tag 2 inflight: IN [ 1779.853666] sd 7:0:0:0: tag#1 CDB: Report supported operation codes a3 0c 01 41 00 00 00 00 02 00 00 00 [ 1779.853736] sd 7:0:0:0: [sda] tag#0 uas_eh_abort_handler 0 uas-tag 1 inflight: IN [ 1779.853740] sd 7:0:0:0: [sda] tag#0 CDB: Read(10) 28 00 0e e7 c2 a8 00 00 08 00 [ 1779.853826] scsi host7: uas_eh_bus_reset_handler start [ 1779.965868] usb 4-4: reset SuperSpeed USB device number 3 using xhci_hcd [ 1779.983186] scsi host7: uas_eh_bus_reset_handler success [ 1810.829110] sd 7:0:0:0: [sda] tag#1 uas_eh_abort_handler 0 uas-tag 2 inflight: IN [ 1810.829121] sd 7:0:0:0: [sda] tag#1 CDB: Read(10) 28 00 0e e7 c2 a8 00 00 08 00 [ 1810.829160] sd 7:0:0:0: tag#0 uas_eh_abort_handler 0 uas-tag 1 inflight: IN [ 1810.829165] sd 7:0:0:0: tag#0 CDB: Report supported operation codes a3 0c 01 41 00 00 00 00 02 00 00 00 [ 1810.829292] scsi host7: uas_eh_bus_reset_handler start [ 1810.941310] usb 4-4: reset SuperSpeed USB device number 3 using xhci_hcd [ 1810.958687] scsi host7: uas_eh_bus_reset_handler success [ 1810.958731] sd 7:0:0:0: [sda] tag#1 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_TIMEOUT [ 1810.958733] sd 7:0:0:0: [sda] tag#1 CDB: Read(10) 28 00 0e e7 c2 a8 00 00 08 00 [ 1810.958735] blk_update_request: I/O error, dev sda, sector 250069672 [ 1841.868531] sd 7:0:0:0: [sda] tag#1 uas_eh_abort_handler 0 uas-tag 2 inflight: IN [ 1841.868541] sd 7:0:0:0: [sda] tag#1 CDB: Read(10) 28 00 0e e7 c2 a8 00 00 08 00 [ 1841.868579] sd 7:0:0:0: tag#0 uas_eh_abort_handler 0 uas-tag 1 inflight: IN [ 1841.868584] sd 7:0:0:0: tag#0 CDB: Report supported operation codes a3 0c 01 41 00 00 00 00 02 00 00 00 [ 1841.868710] scsi host7: uas_eh_bus_reset_handler start [ 1841.980727] usb 4-4: reset SuperSpeed USB device number 3 using xhci_hcd [ 1841.998099] scsi host7: uas_eh_bus_reset_handler success [ 1872.843912] sd 7:0:0:0: tag#1 uas_eh_abort_handler 0 uas-tag 2 inflight: IN [ 1872.843916] sd 7:0:0:0: tag#1 CDB: Report supported operation codes a3 0c 01 41 00 00 00 00 02 00 00 00 [ 1872.843963] sd 7:0:0:0: [sda] tag#0 uas_eh_abort_handler 0 uas-tag 1 inflight: IN [ 1872.843965] sd 7:0:0:0: [sda] tag#0 CDB: Read(10) 28 00 0e e7 c2 a8 00 00 08 00 [ 1872.844022] scsi host7: uas_eh_bus_reset_handler start [ 1872.956113] usb 4-4: reset SuperSpeed USB device number 3 using xhci_hcd [ 1872.973422] scsi host7: uas_eh_bus_reset_handler success [ 1872.973483] sd 7:0:0:0: [sda] Attached SCSI disk [ 1903.819334] sd 7:0:0:0: [sda] tag#0 uas_eh_abort_handler 0 uas-tag 1 inflight: IN [ 1903.819338] sd 7:0:0:0: [sda] tag#0 CDB: Read(10) 28 00 0e e7 c2 a8 00 00 08 00 [ 1903.819403] scsi host7: uas_eh_bus_reset_handler start [ 1903.931502] usb 4-4: reset SuperSpeed USB device number 3 using xhci_hcd [ 1903.948927] scsi host7: uas_eh_bus_reset_handler success [ 1934.794775] sd 7:0:0:0: [sda] tag#0 uas_eh_abort_handler 0 uas-tag 1 inflight: IN [ 1934.794782] sd 7:0:0:0: [sda] tag#0 CDB: Read(10) 28 00 0e e7 c2 a8 00 00 08 00 [ 1934.794882] scsi host7: uas_eh_bus_reset_handler start [ 1934.906963] usb 4-4: reset SuperSpeed USB device number 3 using xhci_hcd [ 1934.924329] scsi host7: uas_eh_bus_reset_handler success [ 1965.834183] sd 7:0:0:0: [sda] tag#0 uas_eh_abort_handler 0 uas-tag 1 inflight: IN [ 1965.834187] sd 7:0:0:0: [sda] tag#0 CDB: Read(10) 28 00 0e e7 c2 a8 00 00 08 00 [ 1965.834263] scsi host7: uas_eh_bus_reset_handler start [ 1965.946393] usb 4-4: reset SuperSpeed USB device number 3 using xhci_hcd [ 1965.963727] scsi host7: uas_eh_bus_reset_handler success [ 1996.809629] sd 7:0:0:0: [sda] tag#0 uas_eh_abort_handler 0 uas-tag 1 inflight: IN [ 1996.809635] sd 7:0:0:0: [sda] tag#0 CDB: Read(10) 28 00 0e e7 c2 a8 00 00 08 00 [ 1996.809793] scsi host7: uas_eh_bus_reset_handler start [ 1996.921820] usb 4-4: reset SuperSpeed USB device number 3 using xhci_hcd [ 1996.939178] scsi host7: uas_eh_bus_reset_handler success [ 1996.939219] sd 7:0:0:0: [sda] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_TIMEOUT [ 1996.939221] sd 7:0:0:0: [sda] tag#0 CDB: Read(10) 28 00 0e e7 c2 a8 00 00 08 00 [ 1996.939222] blk_update_request: I/O error, dev sda, sector 250069672 [ 1996.939225] Buffer I/O error on dev sda, logical block 31258709, async page read It will appear eventually but really seems to struggle. Any idea what's going on? Works fine under $proprietary_os. -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
