kern.log in attachment. ** Attachment added: "kernel.log_before_freeze" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1585081/+attachment/4731431/+files/kernel.log_before_freeze
-- 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/1585081 Title: Switching user freezes system Status in linux package in Ubuntu: Expired Bug description: Just doing this my system freezes: 1. Click on the top right gear icon. 2. Select a different user account. Login screen appears briefly, then black screen and the system is death: BUG: unable to handle kernel NULL pointer dereference at 0000000000000248 IP: [<ffffffffc0258eb2>] amdgpu_vm_grab_id+0x122/0x310 [amdgpu] PGD 0 Oops: 0000 [#1] SMP Modules linked in: ... (See attached syslog for more) ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-22-generic 4.4.0-22.40 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 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: david 2739 F.... pulseaudio /dev/snd/controlC1: david 2739 F.... pulseaudio CurrentDesktop: Unity Date: Tue May 24 08:54:13 2016 HibernationDevice: RESUME=UUID=d225720a-fc40-49a3-9182-17d278d40460 InstallationDate: Installed on 2015-06-29 (329 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) MachineType: TOSHIBA SATELLITE S50-B ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-22-generic.efi.signed root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.4.0-22-generic N/A linux-backports-modules-4.4.0-22-generic N/A linux-firmware 1.157 SourcePackage: linux UpgradeStatus: Upgraded to xenial on 2016-04-22 (31 days ago) dmi.bios.date: 12/02/2014 dmi.bios.vendor: INSYDE Corp. dmi.bios.version: 2.00 dmi.board.asset.tag: Type2 - Board Asset Tag dmi.board.name: Type2 - Board Product Name1 dmi.board.vendor: Type2 - Board Vendor Name1 dmi.board.version: Type2 - Board Version dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: OEM Chassis ManuFacturer dmi.chassis.version: OEM Chassis Version dmi.modalias: dmi:bvnINSYDECorp.:bvr2.00:bd12/02/2014:svnTOSHIBA:pnSATELLITES50-B:pvrPSPQEE-00F00JEN:rvnType2-BoardVendorName1:rnType2-BoardProductName1:rvrType2-BoardVersion:cvnOEMChassisManuFacturer:ct10:cvrOEMChassisVersion: dmi.product.name: SATELLITE S50-B dmi.product.version: PSPQEE-00F00JEN dmi.sys.vendor: TOSHIBA To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1585081/+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
