levien, the next step is to fully reverse commit bisect from kernel 4.4 to 4.6-rc7 in order to identify the last bad commit, followed immediately by the first good one. Once this good commit has been identified, it may be reviewed for backporting. 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. After the fix commit (not kernel version) has been identified, then please mark this report Status Confirmed. Thank you for your understanding. Helpful bug reporting tips: https://wiki.ubuntu.com/ReportingBugs ** Tags added: kernel-fixed-upstream-4.6-rc6 latest-bios-1801 needs- reverse-bisect ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete ** Tags added: regression-release -- 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/1574211 Title: The "nolapic" boot option causes a kernel panic Status in linux package in Ubuntu: Incomplete Bug description: The kernel parameter "nolapic" causes an unrecoverable kernel panic with the 4.4.0-21 kernel in Xenial (16.04). I've verified this on two different machines. The 4.2.0-36 kernel from 15.10 boots without problems, with the same options. The kernel-logs contain no information on the failed boot attempts. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-21-generic 4.4.0-21.37 ProcVersionSignature: Ubuntu 4.2.0-36.41-generic 4.2.8-ckt8 Uname: Linux 4.2.0-36-generic x86_64 NonfreeKernelModules: nvidia_uvm nvidia ApportVersion: 2.20.1-0ubuntu2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: levien 2391 F.... pulseaudio /dev/snd/controlC0: levien 2391 F.... pulseaudio CurrentDesktop: MATE Date: Sun Apr 24 11:54:14 2016 HibernationDevice: RESUME=UUID=df18bec1-dd4a-4c76-bb15-065133e0ffd0 InstallationDate: Installed on 2016-02-11 (72 days ago) InstallationMedia: Ubuntu-MATE 15.10 "Wily Werewolf" - Release amd64 (20151021) IwConfig: lo no wireless extensions. enp0s10 no wireless extensions. MachineType: System manufacturer System Product Name ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-36-generic root=UUID=c0232677-d281-4213-a6ec-682260728775 ro nolapic quiet splash RelatedPackageVersions: linux-restricted-modules-4.2.0-36-generic N/A linux-backports-modules-4.2.0-36-generic N/A linux-firmware 1.157 RfKill: SourcePackage: linux UpgradeStatus: Upgraded to xenial on 2016-04-23 (0 days ago) dmi.bios.date: 09/10/2010 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 1801 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: M3N78-VM dmi.board.vendor: ASUSTeK Computer INC. dmi.board.version: Rev X.0x dmi.chassis.asset.tag: Asset-1234567890 dmi.chassis.type: 3 dmi.chassis.vendor: Chassis Manufacture dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1801:bd09/10/2010:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM3N78-VM:rvrRevX.0x: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/1574211/+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