Paul Kishimoto, as per http://www.dell.com/support/troubleshooting/us/en/04/Product/xps-13 -l321x-mlk an update is available for your BIOS (A09). If you update to this, does it change anything?
If not, could you please both specify what happened, and provide the output of the following terminal command: sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date Thank you for your understanding. ** Tags added: bios-outdated-a09 needs-upstream-testing regression- potential ** Tags removed: kernel-bug-exists-upstream ** Tags added: kernel-bug-exists-upstream-v3.9 ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete ** Tags added: needs-usb-v-log -- 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: Incomplete 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