I've now been successfully running upstream kernel for quite a few days and haven't had a single lockup, which suggests that the problem is not exhibited by the upstream kernel.
What do I do next to help resolve this bug? I've set the tags as the bot message suggested above. ** Tags added: kernel-fixed-upstream -- 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/1227023 Title: Machine locks up a few times a day Status in “linux” package in Ubuntu: Confirmed Bug description: My machine is locking up a few times a day. These lockups seem to be graphics-related -- they often occur when opening a new tab in Chromium or a new window or Unity indicator menu shows on the screen -- but are not universally so. Sometimes the machine will lock up of its own accord when no-one is using it at all. When locked up, the machine is unresponsive to keypresses and mouse movements; I cannot, for example, switch to a virtual console. It will not answer ssh connections (the network going down is why I think it might be a kernel problem rather than X). It *does* respond to SysRq+REISUB. However, SysRq+1t does not leave any trace in kern.log after a reboot. I have run memtest86 overnight and it shows no errors. This started happening under raring; I have upgraded to saucy in the hope that it would fix the problem and it has not. It occurs using both Xorg and Xmir. I am unable to trigger the problem at will. ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: linux-image-3.11.0-7-generic 3.11.0-7.14 ProcVersionSignature: Ubuntu 3.11.0-7.14-generic 3.11.1 Uname: Linux 3.11.0-7-generic x86_64 ApportVersion: 2.12.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: aquarius 3679 F.... pulseaudio /dev/snd/controlC0: aquarius 3679 F.... pulseaudio CheckboxSubmission: 4d186c1dd89d3ba4cb89f5ee55713686 CheckboxSystem: bb422ca46d02494cdbc459927a98bc2f Date: Wed Sep 18 10:19:36 2013 EcryptfsInUse: Yes HibernationDevice: RESUME=UUID=2a997b66-19bc-46c5-b10c-2d09ecf514eb InstallationDate: Installed on 2011-12-11 (646 days ago) InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20111211) MachineType: LENOVO 1080 MarkForUpload: True ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-7-generic root=UUID=1897a7e0-a3e7-4d65-811e-c8ffeacf0435 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.11.0-7-generic N/A linux-backports-modules-3.11.0-7-generic N/A linux-firmware 1.114 SourcePackage: linux StagingDrivers: zram UpgradeStatus: Upgraded to saucy on 2013-09-05 (12 days ago) dmi.bios.date: 11/21/2011 dmi.bios.vendor: LENOVO dmi.bios.version: 56CN38WW dmi.board.asset.tag: ATN12345678901234567 dmi.board.name: U300s dmi.board.vendor: LENOVO dmi.board.version: 1.0 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Lenovo IdeaPad U300s dmi.modalias: dmi:bvnLENOVO:bvr56CN38WW:bd11/21/2011:svnLENOVO:pn1080:pvrLenovoIdeaPadU300s:rvnLENOVO:rnU300s:rvr1.0:cvnLENOVO:ct10:cvrLenovoIdeaPadU300s: dmi.product.name: 1080 dmi.product.version: Lenovo IdeaPad U300s dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1227023/+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
