The newer Ubuntu kernel has the new retpoline Spectre mitigation. In order to load, your kernel modules will need to be compiled with a version of gcc that supports retpoline. You can determine if the module has it with the command "modinfo <module>" and look for the version magic.
If you are using DKMS then your kernel modules should have updated automatically. However this depends on the version of gcc in use. If you are using a Ubuntu version of gcc, then gcc probably updated when you got the newer kernel. The changes to gcc necessary to support retpoline should have been backported to most active versions of gcc. However if you have installed a custom version of gcc then your kernel module probably will not build correctly. -- 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/1750937 Title: 4.4.0-116 Kernel update on 2/21 breaks Nvidia drivers (on 14.04 and 16.04) Status in linux package in Ubuntu: Confirmed Status in nvidia-graphics-drivers-384 package in Ubuntu: Confirmed Status in xorg package in Ubuntu: Confirmed Bug description: Running fine with nvidia-384 until this kernel update came along. When booted into the new kernel, got super low resolution and nvidia- settings was missing most of its functionality - could not change resolution. Rebooted into 4.4.0-112 kernel and all was well. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: xorg 1:7.7+1ubuntu8.1 ProcVersionSignature: Ubuntu 4.4.0-112.135~14.04.1-generic 4.4.98 Uname: Linux 4.4.0-112-generic x86_64 NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia .proc.driver.nvidia.registry: Binary: "" .proc.driver.nvidia.version: NVRM version: NVIDIA UNIX x86_64 Kernel Module 384.111 Tue Dec 19 23:51:45 PST 2017 GCC version: gcc version 4.8.4 (Ubuntu 4.8.4-2ubuntu1~14.04.3) ApportVersion: 2.14.1-0ubuntu3.27 Architecture: amd64 CurrentDesktop: LXDE Date: Wed Feb 21 19:23:39 2018 DistUpgraded: Fresh install DistroCodename: trusty DistroVariant: ubuntu DkmsStatus: bbswitch, 0.7, 4.4.0-112-generic, x86_64: installed bbswitch, 0.7, 4.4.0-116-generic, x86_64: installed nvidia-384, 384.111, 4.4.0-112-generic, x86_64: installed nvidia-384, 384.111, 4.4.0-116-generic, x86_64: installed GraphicsCard: NVIDIA Corporation Device [10de:1c82] (rev a1) (prog-if 00 [VGA controller]) Subsystem: eVga.com. Corp. Device [3842:6253] InstallationDate: Installed on 2015-03-03 (1086 days ago) InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1) MachineType: ASUSTeK COMPUTER INC. M11AD ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-112-generic root=UUID=5a88d2a1-0a24-415b-adc2-28435b13248a ro quiet splash vt.handoff=7 SourcePackage: xorg Symptom: display UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/15/2013 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 0302 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: M11AD 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.:bvr0302:bd08/15/2013:svnASUSTeKCOMPUTERINC.:pnM11AD:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnM11AD:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion: dmi.product.name: M11AD dmi.product.version: System Version dmi.sys.vendor: ASUSTeK COMPUTER INC. version.compiz: compiz 1:0.9.11.3+14.04.20160425-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.67-1ubuntu0.14.04.2 version.libgl1-mesa-dri: libgl1-mesa-dri N/A version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx N/A version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A version.xserver-xorg-core: xserver-xorg-core N/A version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A version.xserver-xorg-video-intel: xserver-xorg-video-intel N/A version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau N/A xserver.bootTime: Wed Feb 21 18:48:14 2018 xserver.configfile: default xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.outputs: xserver.version: 2:1.18.3-1ubuntu2.3~trusty4 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1750937/+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
