It looks like there was a kernel oops. Do you recall what you were doing when this occurred? Do you have a way to reproduce this bug?
** Tags added: kernel-da-key -- 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/1552668 Title: BUG: unable to handle kernel paging request at 00007f4cd3dac000 Status in linux package in Ubuntu: Confirmed Bug description: No idea what happened. ProblemType: KernelOops DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-9-generic 4.4.0-9.24 ProcVersionSignature: Ubuntu 4.4.0-9.24-generic 4.4.3 Uname: Linux 4.4.0-9-generic x86_64 Annotation: Your system might become unstable now and might need to be restarted. ApportVersion: 2.20-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: daniel 2422 F.... pulseaudio Date: Thu Mar 3 12:32:55 2016 DuplicateSignature: BUG: unable to handle kernel paging request at location RIP: 0010:location location anon_vma_clone+0x99/0x200 Failure: oops HibernationDevice: RESUME=UUID=9bc14055-971b-4ccc-a5b7-f42c3d313c8c InstallationDate: Installed on 2015-04-30 (307 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) MachineType: LENOVO 429149G ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-9-generic root=UUID=457973fc-512e-4b6a-b65b-85f15fa85b7b ro console=tty1 console=ttyS0 panic=-1 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: kerneloops-daemon 0.12+git20090217-3ubuntu9 SourcePackage: linux SystemImageInfo: Error: command ['system-image-cli', '-i'] failed with exit code 2: Title: BUG: unable to handle kernel paging request at 00007f4cd3dac000 UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/18/2011 dmi.bios.vendor: LENOVO dmi.bios.version: 8DET46WW (1.16 ) dmi.board.asset.tag: Not Available dmi.board.name: 429149G dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvr8DET46WW(1.16):bd05/18/2011:svnLENOVO:pn429149G:pvrThinkPadX220:rvnLENOVO:rn429149G:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 429149G dmi.product.version: ThinkPad X220 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1552668/+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