Tried your workaround but problem still exists. Log: Nov 6 21:35:38 rodomp01 kernel: [ 289.927150] sd 4:0:0:0: [sdb] uas_eh_abort_handler ffff88021311cd80 tag 0, inflight: CMD IN Nov 6 21:35:41 rodomp01 kernel: [ 292.927539] scsi host4: uas_eh_task_mgmt: ABORT TASK timed out Nov 6 21:35:41 rodomp01 kernel: [ 292.927588] sd 4:0:0:0: uas_eh_device_reset_handler Nov 6 21:35:41 rodomp01 kernel: [ 292.927597] scsi host4: uas_eh_task_mgmt: LOGICAL UNIT RESET: error already running a task Nov 6 21:35:41 rodomp01 kernel: [ 292.927603] scsi host4: uas_eh_bus_reset_handler start Nov 6 21:35:41 rodomp01 kernel: [ 292.927669] usb 3-1: stat urb: killed, stream 2 Nov 6 21:35:41 rodomp01 kernel: [ 292.927763] sd 4:0:0:0: [sdb] uas_data_cmplt ffff88021311cd80 tag 0, inflight: CMD abort Nov 6 21:35:41 rodomp01 kernel: [ 292.927770] sd 4:0:0:0: [sdb] data cmplt err -2 stream 2 Nov 6 21:35:41 rodomp01 kernel: [ 292.927804] sd 4:0:0:0: [sdb] uas_zap_dead ffff88021311cd80 tag 0, inflight: CMD abort Nov 6 21:35:41 rodomp01 kernel: [ 292.927822] sd 4:0:0:0: [sdb] abort completed Nov 6 21:35:41 rodomp01 kernel: [ 293.039920] usb 3-1: reset SuperSpeed USB device number 2 using xhci_hcd Nov 6 21:35:41 rodomp01 kernel: [ 293.056271] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff8800d620f000 Nov 6 21:35:41 rodomp01 kernel: [ 293.056277] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff8800d620f048 Nov 6 21:35:41 rodomp01 kernel: [ 293.056280] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff8800d620f090 Nov 6 21:35:41 rodomp01 kernel: [ 293.056283] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff8800d620f0d8 Nov 6 21:35:41 rodomp01 kernel: [ 293.057750] scsi host4: uas_eh_bus_reset_handler success
cat /proc/cmdline: BOOT_IMAGE=/vmlinuz-3.16.0-51-generic root=UUID=cee44af9-c463-4cf1-ac47-36add5959072 ro quiet splash usbcore.autosuspend=-1 vt.handoff=7 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1371233 Title: USB 3.0 connection is unreliable + xHCI xhci_drop_endpoint called with disabled ep To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1371233/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
