BUG: Bad page map in process SaveScripts pte:20000000 pmd:56c58a067

[Knickers Brown]

Note that this is from an AMD Ryzen 5 2600G

Also the BIOS firmware is a beta, but the previous version, which is the last so-called stable version is in much worse shape. For instance it misidentifies the RAM as having CAS 19 when it's really CAS 16. The beta BIOS firmware does the job correctly and shows CAS 16.

UPDATED: There is a newer BIOS, I'll be updating soon.
https://www.gigabyte.com/us/Motherboard/GA-AX370-Gaming-5-rev-10#support-dl

ProblemType: KernelOops
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-13-generic 4.15.0-13.14
ProcVersionSignature: Ubuntu 4.15.0-13.14-generic 4.15.10
Uname: Linux 4.15.0-13-generic x86_64
Annotation: Your system might become unstable now and might need to be restarted.
ApportVersion: 2.20.9-0ubuntu2
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: ksta 1882 F.... pulseaudio
 /dev/snd/controlC2: ksta 1882 F.... pulseaudio
 /dev/snd/controlC1: ksta 1882 F.... pulseaudio
Date: Thu Mar 29 07:09:10 2018
Failure: oops
InstallationDate: Installed on 2018-03-13 (15 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180311)
MachineType: Gigabyte Technology Co., Ltd. AX370-Gaming 5
ProcFB: 0 nouveaufb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-13-generic root=UUID=5a435321-b09d-44ad-a2ca-cfda4521071d ro quiet splash vt.handoff=1
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions: kerneloops-daemon N/A
RfKill:

SourcePackage: linux
Title: BUG: Bad page map in process SaveScripts pte:20000000 pmd:56c58a067
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.

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This change was made by a bot.

[Knickers Brown (metta-crawler)]

I'm on the new BIOS. It requires iommu=pt

Even with older kernels like 4.14.31 this computer requires iommu=pt

[Knickers Brown (metta-crawler)]

dmidecode output from BIOS F22

https://gist.github.com/mettacrawler/ed333ea4349f71c481892fe53eea6039