Paul, Can you try the latest raring kernel and verify this still exists. I have a 3TB drive attached to my system via USB 3 port and I rsync to it hourly. I've not had any issues at all.
-- 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/1176810 Title: Kernel panic with USB 3.0 mass storage device Status in “linux” package in Ubuntu: Confirmed Bug description: I have the following hardware: * Dell XPS 13, which has two USB ports—one USB 2.0, one USB 3.0. * Sans Digital MS4UM+B (http://www.sansdigital.com/mobilestor/ms4umplusb.html) with four hard disks. I am trying to transfer data between two of the disks in the enclosure, using dd. When I connect the enclosure to the USB 2.0 port, dmesg contains: [ 892.056502] usb 3-1: new high-speed USB device number 3 using xhci_hcd [ 892.073556] usb 3-1: New USB device found, idVendor=152d, idProduct=0551 [ 892.073567] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=5 [ 892.073573] usb 3-1: Product: USB to ATA/ATAPI Bridge [ 892.073578] usb 3-1: Manufacturer: JMicron [ 892.073582] usb 3-1: SerialNumber: DCA1861915FF …and I can transfer hundreds of gigabytes without issue, at USB 2.0 speeds (20 MB/s). When I connect the enclosure to the USB 3.0 port, dmesg contains: [ 658.873399] usb 4-2: new SuperSpeed USB device number 2 using xhci_hcd [ 658.890861] usb 4-2: New USB device found, idVendor=152d, idProduct=0551 [ 658.890872] usb 4-2: New USB device strings: Mfr=1, Product=2, SerialNumber=5 [ 658.890878] usb 4-2: Product: USB to ATA/ATAPI Bridge [ 658.890883] usb 4-2: Manufacturer: JMicron [ 658.890887] usb 4-2: SerialNumber: DCA1861915FF …and I invariably experience a kernel panic shortly after data transfer begins. I attach two screenshots. If I can manage to probe dd (sudo killall --signal USR1 dd), the transfer appears to be going at USB 3.0 speeds. The enclosure was not powered on when I ran 'ubuntu-bug linux' to report this, so I'll attach another dmesg showing the device being attached to first the USB 3.0, then the USB 2.0 port. ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: linux-image-3.8.0-19-generic 3.8.0-19.30 ProcVersionSignature: Ubuntu 3.8.0-19.30-generic 3.8.8 Uname: Linux 3.8.0-19-generic x86_64 ApportVersion: 2.9.2-0ubuntu8 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: khaeru 2007 F.... pulseaudio Date: Mon May 6 17:07:07 2013 EcryptfsInUse: Yes HibernationDevice: RESUME=UUID=8a50cb18-6d85-4607-b7ee-b8ce7cace6d5 InstallationDate: Installed on 2012-10-29 (188 days ago) InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5) MachineType: Dell Inc. Dell System XPS L322X MarkForUpload: True ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-19-generic root=UUID=f35cf80b-a6d6-4554-9c13-4d9cba6f8c03 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.8.0-19-generic N/A linux-backports-modules-3.8.0-19-generic N/A linux-firmware 1.106 SourcePackage: linux UpgradeStatus: Upgraded to raring on 2013-04-25 (10 days ago) dmi.bios.date: 09/17/2012 dmi.bios.vendor: Dell Inc. dmi.bios.version: A03 dmi.board.name: 085VR5 dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnDellInc.:bvrA03:bd09/17/2012:svnDellInc.:pnDellSystemXPSL322X:pvr:rvnDellInc.:rn085VR5:rvrA00:cvnDellInc.:ct8:cvr0.1: dmi.product.name: Dell System XPS L322X dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1176810/+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
