Last evening I posted the tail end of the currentDmesg.txt (attached to this ticket) to the linux kernel mailing list.
I received back the following [0] The newer kernels (like 4.18) have checks regarding copies to userspace for unwanted kernel memory exposure. The check fails here. This particular copy was initiated by the binary nvidia driver, so unfortunately we cannot help here. So either ask Nvidia for a fix or (if that driver was installed with the Ubuntu software updater) Canonical. [0] https://lore.kernel.org/lkml/e684dd79-7bf9-1685-a06a- 438eb8385...@de.ibm.com/ -- 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/1799875 Title: Kernel Crash - consisten when shutting down the system Status in linux package in Ubuntu: Incomplete Status in nvidia-graphics-drivers package in Ubuntu: New Bug description: When every I run "sudo sync && sudo shutdown -h now" I experience an immediate kernel crash. This is 100% repeatible on my system. I have the 18.10 release installed with all patches applied. lsb_release -rd: Description:Ubuntu 18.10 Release: 18.10 cat /proc/version_signature Ubuntu 4.18.0-10.11-generic 4.18.12 ProblemType: Bug DistroRelease: Ubuntu 18.10 Package: linux-image-4.18.0-10-generic 4.18.0-10.11 ProcVersionSignature: Ubuntu 4.18.0-10.11-generic 4.18.12 Uname: Linux 4.18.0-10-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.10-0ubuntu13 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: steves 2854 F.... pulseaudio /dev/snd/controlC1: steves 2854 F.... pulseaudio Date: Wed Oct 24 22:20:13 2018 HibernationDevice: RESUME=UUID=84b37d15-2872-40b9-b406-0600c9d5f6f5 InstallationDate: Installed on 2018-10-25 (0 days ago) InstallationMedia: IwConfig: lo no wireless extensions. enp30s0 no wireless extensions. Lsusb: Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 002: ID 045e:07b2 Microsoft Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: System manufacturer System Product Name ProcEnviron: LANGUAGE= TERM=xterm-256color PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 VESA VGA ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.18.0-10-generic root=UUID=05bb8d54-5c84-4752-aeae-a50ab6542e93 ro quiet splash vt.handoff=1 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-4.18.0-10-generic N/A linux-backports-modules-4.18.0-10-generic N/A linux-firmware 1.175 RfKill: SourcePackage: linux UpgradeStatus: Upgraded to cosmic on 2018-10-25 (0 days ago) dmi.bios.date: 02/07/2017 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 0406 dmi.board.asset.tag: Default string dmi.board.name: PRIME B350-PLUS dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: Rev X.0x dmi.chassis.asset.tag: Default string dmi.chassis.type: 3 dmi.chassis.vendor: Default string dmi.chassis.version: Default string dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0406:bd02/07/2017:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnPRIMEB350-PLUS:rvrRevX.0x:cvnDefaultstring:ct3:cvrDefaultstring: dmi.product.family: To be filled by O.E.M. dmi.product.name: System Product Name dmi.product.sku: SKU 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/1799875/+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
