and then: [ 2081.759381] sd 0:0:0:0: tag#0 uas_eh_abort_handler 0 uas-tag 1 inflight: IN [ 2081.759388] sd 0:0:0:0: tag#0 CDB: Report supported operation codes a3 0c 01 12 00 00 00 00 02 00 00 00 [ 2081.759576] scsi host0: uas_eh_bus_reset_handler start [ 2081.879432] usb 2-1: reset SuperSpeed USB device number 8 using xhci_hcd [ 2081.902123] scsi host0: uas_eh_bus_reset_handler success [ 2114.526621] sd 0:0:0:0: tag#0 uas_eh_abort_handler 0 uas-tag 1 inflight: IN [ 2114.526628] sd 0:0:0:0: tag#0 CDB: Report supported operation codes a3 0c 01 12 00 00 00 00 02 00 00 00 [ 2114.526751] scsi host0: uas_eh_bus_reset_handler start [ 2114.647413] usb 2-1: reset SuperSpeed USB device number 8 using xhci_hcd [ 2114.669711] scsi host0: uas_eh_bus_reset_handler success [ 2145.246599] sd 0:0:0:0: tag#0 uas_eh_abort_handler 0 uas-tag 1 inflight: IN [ 2145.246606] sd 0:0:0:0: tag#0 CDB: Report supported operation codes a3 0c 01 12 00 00 00 00 02 00 00 00 [ 2145.246691] scsi host0: uas_eh_bus_reset_handler start [ 2145.366868] usb 2-1: reset SuperSpeed USB device number 8 using xhci_hcd [ 2145.388835] scsi host0: uas_eh_bus_reset_handler success
and regularli every 30sec it repeats -- 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/1584557 Title: Seagate external drive causes SCSI bus resets when UAS enabled Status in linux package in Ubuntu: Confirmed Bug description: Seagate STEA1000400 external USB hard disk (USB ID 0bc2:2322) causes continuous SCSI bus resets by default. As a workaround, disabling UAS causes the device to work fine. To disable UAS, I created a file in /etc/modprobe.d with the following contents: options usb-storage quirks=0bc2:02322:u ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: ubuntu-release-upgrader-core 1:16.04.14 ProcVersionSignature: Ubuntu 4.4.0-22.40-generic 4.4.8 Uname: Linux 4.4.0-22-generic x86_64 ApportVersion: 2.20.1-0ubuntu2 Architecture: amd64 CrashDB: ubuntu Date: Sun May 22 22:02:26 2016 InstallationDate: Installed on 2012-10-07 (1323 days ago) InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120822.4) PackageArchitecture: all ProcEnviron: LANGUAGE= TERM=xterm PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: ubuntu-release-upgrader Symptom: ubuntu-release-upgrader UpgradeStatus: Upgraded to xenial on 2016-04-09 (43 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1584557/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp