I'm using the default that comes with 18.04 uname -svr Linux 4.15.0-15-generic #16-Ubuntu SMP Wed Apr 4 13:58:14 UTC 2018
The same IOMMU=pt $ grep iommu /etc/default/grub GRUB_CMDLINE_LINUX="iommu=pt" Fixed 4.14.* on 17.10 (I didn't try the default 4.13.* kernel) Last tested on 4.14.33-041433-generic (I don't boot 17.10 that often) -- 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/1758305 Title: Panic during SyS_reboot Status in linux package in Ubuntu: Incomplete Status in linux source package in Bionic: Incomplete Bug description: BUG: unable to handle kernel NULL pointer dereference at (null) IP: device_shutdown+0xbb/0x200 PGD 0 P4D 0 Oops: 0002 [#1] SMP NOPTI See the screenshot for more. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-4.15.0-12-generic 4.15.0-12.13 ProcVersionSignature: Ubuntu 4.15.0-12.13-generic 4.15.7 Uname: Linux 4.15.0-12-generic x86_64 ApportVersion: 2.20.8-0ubuntu10 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: ksta 1624 F.... pulseaudio /dev/snd/controlC2: ksta 1624 F.... pulseaudio /dev/snd/controlC1: ksta 1624 F.... pulseaudio CurrentDesktop: ubuntu:GNOME Date: Fri Mar 23 07:01:58 2018 InstallationDate: Installed on 2018-03-13 (9 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180311) MachineType: Gigabyte Technology Co., Ltd. AX370-Gaming 5 ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 nouveaufb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-12-generic root=UUID=5a435321-b09d-44ad-a2ca-cfda4521071d ro quiet splash vt.handoff=1 RelatedPackageVersions: linux-restricted-modules-4.15.0-12-generic N/A linux-backports-modules-4.15.0-12-generic N/A linux-firmware 1.173 RfKill: SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 02/13/2018 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: F22b dmi.board.asset.tag: Default string dmi.board.name: AX370-Gaming 5 dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.board.version: Default string dmi.chassis.asset.tag: Default string dmi.chassis.type: 3 dmi.chassis.vendor: Default string dmi.chassis.version: Default string dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF22b:bd02/13/2018:svnGigabyteTechnologyCo.,Ltd.:pnAX370-Gaming5:pvrDefaultstring:rvnGigabyteTechnologyCo.,Ltd.:rnAX370-Gaming5:rvrDefaultstring:cvnDefaultstring:ct3:cvrDefaultstring: dmi.product.family: Default string dmi.product.name: AX370-Gaming 5 dmi.product.version: Default string dmi.sys.vendor: Gigabyte Technology Co., Ltd. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1758305/+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
