Petter Adsen, the next step is to fully reverse commit bisect from kernel 3.19 to 4.0 in order to identify the last bad commit, followed immediately by the first good one. Once this commit has been identified, then it may be reviewed as a candidate for backporting into your release. Could you please do this following https://wiki.ubuntu.com/Kernel/KernelBisection#How_do_I_reverse_bisect_the_upstream_kernel.3F ?
Please note, finding adjacent kernel versions is not fully commit bisecting. Thank you for your understanding. Helpful bug reporting tips: https://wiki.ubuntu.com/ReportingBugs ** Tags removed: kernel-fixed-upstream-4.0.0 ** Tags added: kernel-fixed-upstream-4.0 needs-reverse-bisect ** 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/1447556 Title: AMD radeon hangs/crashes Status in linux package in Ubuntu: Incomplete Bug description: Ubuntu 3.19.0-15.15-generic 3.19.3 On boot, there are error messages from the radeon driver (see dmesg output), and lightdm fails to start the X server - it simply hangs without errors. Logging in on the console and running startx works, but if the screen saver kicks in, the X server hangs again and needs to be manually killed and restarted. This started happening after one of the two latest kernel upgrades on vivid, I didn't reboot after the -14 update, so I don't know whether that or -15 caused this. Please contact me If further information is needed, I can't attach more than one file. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-generic 3.19.0.15.14 ProcVersionSignature: Ubuntu 3.19.0-15.15-generic 3.19.3 Uname: Linux 3.19.0-15-generic x86_64 ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: petter 18079 F.... pulseaudio /dev/snd/controlC1: petter 18079 F.... pulseaudio CurrentDesktop: XFCE Date: Thu Apr 23 12:26:01 2015 EcryptfsInUse: Yes InstallationDate: Installed on 2015-03-08 (45 days ago) InstallationMedia: Xubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1) MachineType: System manufacturer System Product Name ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-15-generic root=UUID=f99b1ed0-5a42-4536-9899-d3e982f1c048 ro RelatedPackageVersions: linux-restricted-modules-3.19.0-15-generic N/A linux-backports-modules-3.19.0-15-generic N/A linux-firmware 1.143 RfKill: 0: hci0: Bluetooth Soft blocked: no Hard blocked: no SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-03-21 (32 days ago) dmi.bios.date: 04/01/2011 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 2002 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: Crosshair IV Extreme dmi.board.vendor: ASUSTeK Computer INC. dmi.board.version: Rev 1.xx dmi.chassis.asset.tag: Asset-1234567890 dmi.chassis.type: 3 dmi.chassis.vendor: Chassis Manufacture dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2002:bd04/01/2011:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnCrosshairIVExtreme:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion: dmi.product.name: System Product Name dmi.product.version: System Version dmi.sys.vendor: System manufacturer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1447556/+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
