I'd like to perform a reverse bisect to figure out which commit upstream fixes this regression. It would be very helpful to know the last kernel that had this issue and the first kernel that did not.
Can you test the following kernels and report back? We are looking for the earliest kernel version that doesn't have this bug: v3.17-rc4: http://kernel.ubuntu.com/~kernel- ppa/mainline/v3.17-rc4-utopic If v3.17rc-4 exhibits the bug then test v3.17-rc6: v3.17-rc6: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.17-rc6-utopic/ If v3.17-rc4 does not exhibit the bug then test v3.17-rc2: v3.17-rc2: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.17-rc2-utopic/ You don't have to test every kernel, just up until the first kernel that does not have this bug. Thanks in advance! ** Changed in: linux (Ubuntu) Status: Incomplete => Triaged ** 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/1374948 Title: BUG: soft lockup - CPU#1 stuck for 22s! [Xorg:1839] Status in “linux” package in Ubuntu: Triaged Bug description: Ubuntu 14.10 slow runing, slow rebooting, slow working. ProblemType: KernelOops DistroRelease: Ubuntu 14.10 Package: linux-image-3.16.0-18-generic 3.16.0-18.25 ProcVersionSignature: Ubuntu 3.16.0-18.25-generic 3.16.3 Uname: Linux 3.16.0-18-generic x86_64 Annotation: Your system might become unstablenow and might need to be restarted. ApportVersion: 2.14.7-0ubuntu2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: alenka 2796 F.... pulseaudio /dev/snd/controlC0: alenka 2796 F.... pulseaudio Date: Sun Sep 28 08:37:44 2014 DuplicateSignature: BUG: soft lockup - CPU#1 stuck for 22s! [Xorg:1839] RIP: 0010:location location ttm_dma_unpopulate+0x79/0x380 [ttm] Failure: oops HibernationDevice: RESUME=UUID=60c4391d-b68f-4f82-acb6-96e4086cd266 InstallationDate: Installed on 2012-09-02 (755 days ago) InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1) MachineType: Hewlett-Packard HP Pavilion g6 Notebook PC ProcFB: 0 radeondrmfb 1 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-18-generic root=UUID=7adacb1d-cf9c-4a0c-81b9-9ff248938c36 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: soft lockup - CPU#1 stuck for 22s! [Xorg:1839] UpgradeStatus: Upgraded to utopic on 2014-09-25 (2 days ago) dmi.bios.date: 08/18/2011 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: F.33 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: 3567 dmi.board.vendor: Hewlett-Packard dmi.board.version: 21.27 dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnHewlett-Packard:bvrF.33:bd08/18/2011:svnHewlett-Packard:pnHPPaviliong6NotebookPC:pvr0696120000004610000600000:rvnHewlett-Packard:rn3567:rvr21.27:cvnHewlett-Packard:ct10:cvrChassisVersion: dmi.product.name: HP Pavilion g6 Notebook PC dmi.product.version: 0696120000004610000600000 dmi.sys.vendor: Hewlett-Packard To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1374948/+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
