Hi! I've experienced this problem on my Dell N7110. It's been present in 13.04 and in 13.10 dev release, too. Attached some info from dmesg, which was written in the moment of the USB 3.0 disconnect.
Will post apport info, too. ** Attachment added: "debug info from dmesg" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1222002/+attachment/3814753/+files/dmesg.txt -- 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/1222002 Title: USB 3.0 Disconnects on Ubuntu 12.04 LTS Status in “linux” package in Ubuntu: Incomplete Bug description: After a clean install and upgdate of Ubuntu 12.04 LTS I can not use my USB 3.0 ports to restore files from my backup disk. uname -a Linux csipetke 3.8.0-30-generic #44~precise1-Ubuntu SMP Fri Aug 23 18:32:41 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux The errors I get from command line: cp: reading `gsinai/.recently-used.xbel.82Z5BV': Input/output error cp: failed to extend `/dev/null': Input/output error dmesg: [ 2050.726287] Buffer I/O error on device dm-0, logical block 296747919 [ 2050.726290] lost page write due to I/O error on dm-0 syslog: Sep 7 10:55:59 csipetke kernel: [ 650.040129] usb 3-12: reset high-speed USB device number 4 using xhci_hcd Sep 7 10:55:59 csipetke kernel: [ 650.062917] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff8807f2534600 Sep 7 11:19:24 csipetke kernel: [ 2050.726287] Buffer I/O error on device dm-0, logical block 296747919 Sep 7 11:19:24 csipetke kernel: [ 2050.726290] lost page write due to I/O error on dm-0 The problem is 100% reproducable, please tell me if you need more information. The same disk works fine with my laptop running the same version of Ubuntu. --- ApportVersion: 2.0.1-0ubuntu17.4 Architecture: amd64 DistroRelease: Ubuntu 12.04 InstallationMedia: Ubuntu 12.04.3 LTS "Precise Pangolin" - Release amd64 (20130820.1) MarkForUpload: True Package: linux-image-3.8.0-30-generic 3.8.0-30.44~precise1 PackageArchitecture: amd64 ProcEnviron: TERM=xterm PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcVersionSignature: Ubuntu 3.8.0-30.44~precise1-generic 3.8.13.6 Tags: precise running-unity Uname: Linux 3.8.0-30-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1222002/+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
