BUG: Bad page map in process ThreadPoolForeg pte:00000018 pmd:29337e067

showed up after using ubuntustudio package installer.

ProblemType: KernelOops
DistroRelease: Ubuntu 20.04
Package: linux-image-5.4.0-9-lowlatency 5.4.0-9.12
ProcVersionSignature: Ubuntu 5.4.0-9.12-lowlatency 5.4.3
Uname: Linux 5.4.0-9-lowlatency x86_64
Annotation: Your system might become unstable now and might need to be restarted.
ApportVersion: 2.20.11-0ubuntu15
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: vizionary357 2570 F.... pulseaudio
 /dev/snd/controlC0: vizionary357 2570 F.... pulseaudio
Date: Mon Jan 13 13:08:36 2020
Failure: oops
MachineType: LENOVO 81SS
ProcFB: 0 amdgpudrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-9-lowlatency root=UUID=d48b9241-4b03-4652-b3de-9c81a2c11c7c 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
SourcePackage: linux
Title: BUG: Bad page map in process ThreadPoolForeg pte:00000018 pmd:29337e067
UpgradeStatus: Upgraded to focal on 2020-01-12 (1 days ago)
dmi.bios.date: 09/16/2019
dmi.bios.vendor: LENOVO
dmi.bios.version: AGCN24WW(V1.07)
dmi.board.asset.tag: NO Asset Tag
dmi.board.name: LNVNB161216
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40700 WIN
dmi.chassis.asset.tag: NO Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo IdeaPad FLEX-14API
dmi.modalias: dmi:bvnLENOVO:bvrAGCN24WW(V1.07):bd09/16/2019:svnLENOVO:pn81SS:pvrLenovoIdeaPadFLEX-14API:rvnLENOVO:rnLNVNB161216:rvrSDK0J40700WIN:cvnLENOVO:ct10:cvrLenovoIdeaPadFLEX-14API:
dmi.product.family: IdeaPad FLEX-14API
dmi.product.name: 81SS
dmi.product.sku: LENOVO_MT_81SS_BU_idea_FM_IdeaPad FLEX-14API
dmi.product.version: Lenovo IdeaPad FLEX-14API
dmi.sys.vendor: LENOVO