I'd like to perform a bisect to identify the commit that introduced this regression. Can you test the following kernels and see which ones exhibit the bug:
4.4.19: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.4.19/ 4.4.20: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.4.20/ 4.4.21: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.4.21 You don't have to test all of them, just up until the first one shows the bug. Also, does this issue only happen with the -42 kernel? Do you know if it happens with the -39 kernel? Do you know the last kernel version that did not have the bug? Thanks in advance! ** Also affects: linux (Ubuntu Xenial) Importance: Undecided Status: New ** Changed in: linux (Ubuntu Xenial) Importance: Undecided => Critical ** Changed in: linux (Ubuntu Xenial) Status: New => Confirmed ** Changed in: linux (Ubuntu) Status: Confirmed => In Progress ** Changed in: linux (Ubuntu Xenial) Status: Confirmed => In Progress ** Changed in: linux (Ubuntu) Assignee: (unassigned) => Joseph Salisbury (jsalisbury) ** Changed in: linux (Ubuntu Xenial) Assignee: (unassigned) => Joseph Salisbury (jsalisbury) ** Tags added: kernel-key -- 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/1633391 Title: Ubuntu doesn't boot anymore {REGRESSION} Status in linux package in Ubuntu: In Progress Status in linux source package in Xenial: In Progress Bug description: After I upgraded to latest kernel, Ubuntu does not boot without messing with grub (I had to delete quiet splash options). Before upgrade it was OK. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-42-generic 4.4.0-42.62 ProcVersionSignature: Ubuntu 4.4.0-42.62-generic 4.4.21 Uname: Linux 4.4.0-42-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: tomas 2090 F.... pulseaudio /dev/snd/controlC1: tomas 2090 F.... pulseaudio CurrentDesktop: Unity Date: Fri Oct 14 11:32:56 2016 EcryptfsInUse: Yes HibernationDevice: RESUME=UUID=2ff267c2-ec30-4f81-975c-46640f436942 InstallationDate: Installed on 2016-09-13 (30 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) MachineType: LENOVO 10104 ProcEnviron: LANGUAGE=cs_CZ PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=cs_CZ.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.4.0-42-generic root=UUID=fd50bb86-da1a-45bb-957b-ea19b330d7ff ro rootflags=subvol=@ vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.4.0-42-generic N/A linux-backports-modules-4.4.0-42-generic N/A linux-firmware 1.157.3 RfKill: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/21/2013 dmi.bios.vendor: LENOVO dmi.bios.version: ELKT31AUS dmi.board.name: MAHOBAY dmi.board.vendor: LENOVO dmi.board.version: 31900003 STD dmi.chassis.type: 13 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnLENOVO:bvrELKT31AUS:bd03/21/2013:svnLENOVO:pn10104:pvrLenovoC440:rvnLENOVO:rnMAHOBAY:rvr31900003STD:cvnToBeFilledByO.E.M.:ct13:cvrToBeFilledByO.E.M.: dmi.product.name: 10104 dmi.product.version: Lenovo C440 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1633391/+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
