Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.15 kernel[0].
If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.15-rc5-utopic/ ** Changed in: linux (Ubuntu) Importance: Undecided => High ** Tags added: kernel-da-key ** Tags added: performing-bisect -- 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/1320472 Title: 3.15.0-1.3 kernel, null pointer dereference Status in “linux” package in Ubuntu: Confirmed Bug description: I'm running utopic, kernel from proposed and that consistently fails as shown in the picture (null pointer derefence). I'm using UEFI, booted with systemd, with a damaged / not-clean filesystem (dirty bits sets and recovery required). 3.13 kernels boot fine. ProblemType: Bug DistroRelease: Ubuntu 14.10 Package: linux-image-3.15.0-1-generic 3.15.0-1.3 ProcVersionSignature: Ubuntu 3.13.0-26.48-generic 3.13.11 Uname: Linux 3.13.0-26-generic x86_64 ApportVersion: 2.14.2-0ubuntu4 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: xnox 1770 F.... pulseaudio CurrentDesktop: Unity Date: Sat May 17 12:39:21 2014 HibernationDevice: RESUME=UUID=eee95b80-dde2-400c-bb49-e5f515c9242a InstallationDate: Installed on 2013-08-29 (260 days ago) InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Alpha amd64 (20130829) MachineType: LENOVO 2191 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-26-generic.efi.signed root=UUID=5c176060-d588-4044-87b6-50b785b931b1 ro quiet splash init=/lib/systemd/systemd nomdmonddf nomdmonisw vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-26-generic N/A linux-backports-modules-3.13.0-26-generic N/A linux-firmware 1.129 SourcePackage: linux StagingDrivers: rts5139 r8723au UpgradeStatus: No upgrade log present (probably fresh install) WifiSyslog: dmi.bios.date: 01/21/2013 dmi.bios.vendor: LENOVO dmi.bios.version: 66CN54WW dmi.board.asset.tag: No Asset Tag dmi.board.name: INVALID dmi.board.vendor: LENOVO dmi.board.version: 31900003WIN8 STD MLT dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Lenovo IdeaPad Yoga 13 dmi.modalias: dmi:bvnLENOVO:bvr66CN54WW:bd01/21/2013:svnLENOVO:pn2191:pvrLenovoIdeaPadYoga13:rvnLENOVO:rnINVALID:rvr31900003WIN8STDMLT:cvnLENOVO:ct10:cvrLenovoIdeaPadYoga13: dmi.product.name: 2191 dmi.product.version: Lenovo IdeaPad Yoga 13 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1320472/+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