Stuart Bishop, thank you for reporting this and helping make Ubuntu better. Could you please provide the full computer model as noted on the sticker of the computer itself (not from the Bug Description)?
** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- 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/1502555 Title: BUG: unable to handle kernel NULL pointer dereference at 0000000000000334 Status in linux package in Ubuntu: Incomplete Bug description: Machine hung completely. This issue picked up by apport after power cycling. ProblemType: KernelOops DistroRelease: Ubuntu 15.10 Package: linux-image-4.2.0-12-generic 4.2.0-12.14 ProcVersionSignature: Ubuntu 4.2.0-12.14-generic 4.2.1 Uname: Linux 4.2.0-12-generic x86_64 NonfreeKernelModules: wl Annotation: Your system might become unstable now and might need to be restarted. ApportVersion: 2.19-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: stub 4672 F.... pulseaudio /dev/snd/controlC0: stub 4672 F.... pulseaudio Date: Sun Oct 4 15:47:49 2015 DuplicateSignature: BUG: unable to handle kernel NULL pointer dereference at location RIP: 0010:location location btrfs_sync_file+0xaa/0x340 [btrfs] Failure: oops HibernationDevice: RESUME=UUID=85d38fc2-ada5-4f5e-83ec-ca176c194dab InstallationDate: Installed on 2015-03-13 (204 days ago) InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 004: ID 0a5c:216c Broadcom Corp. BCM43142A0 Bluetooth Device Bus 001 Device 003: ID 064e:c33c Suyin Corp. Bus 001 Device 002: ID 1bcf:0005 Sunplus Innovation Technology Inc. Optical Mouse Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: Hewlett-Packard HP Pavilion 13 Notebook PC ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.2.0-12-generic.efi.signed root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7 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+git20090217-3ubuntu8 SourcePackage: linux Title: BUG: unable to handle kernel NULL pointer dereference at 0000000000000334 UpgradeStatus: Upgraded to wily on 2015-09-29 (5 days ago) dmi.bios.date: 11/28/2014 dmi.bios.vendor: Insyde dmi.bios.version: F.24 dmi.board.asset.tag: Type2 - Board Asset Tag dmi.board.name: 2340 dmi.board.vendor: Hewlett-Packard dmi.board.version: 07.09 dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnInsyde:bvrF.24:bd11/28/2014:svnHewlett-Packard:pnHPPavilion13NotebookPC:pvr097D120000005F00000400080:rvnHewlett-Packard:rn2340:rvr07.09:cvnHewlett-Packard:ct10:cvrChassisVersion: dmi.product.name: HP Pavilion 13 Notebook PC dmi.product.version: 097D120000005F00000400080 dmi.sys.vendor: Hewlett-Packard To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1502555/+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