Please test latest mainline kernel:
https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.8-rc7/
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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https://bugs.launchpad.net/bugs/1888324
Title:
Kernel oops in kvm host if using vhost_net in guest (18.04 HWE)
Status in linux package in Ubuntu:
Incomplete
Bug description:
If I run a KVM guest with a network using the vhost_net driver, I get a
kernel oops with a NULL reference error. It happens randomly. I run a GPU
passthrough setup with windows 10 but I can leave that up 24/7 as I am passing
through a raw ethernet card. Any other virtual machine using the vhost_net
driver will result in a crash in 12 hours or less. I've attached the dmesg that
I captured with kdump. I am not sure when this bug was introduced.
---
ProblemType: Bug
ApportVersion: 2.20.9-0ubuntu7.15
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: luke 3876 F.... pulseaudio
/dev/snd/controlC1: luke 3876 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
DistroRelease: Ubuntu 18.04
InstallationDate: Installed on 2018-10-30 (629 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M.
Package: linux (not installed)
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_AU.UTF-8
SHELL=/bin/bash
ProcFB: 0 amdgpudrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.3.0-62-generic
root=UUID=a5c9f5ef-18ed-4f8b-a213-2cec2e0bb4a5 ro iommu=1 amd_iommu=on
kvm.ignore_msrs=1 kvm.report_ignored_msrs=0
kvm.allow_unsafe_assigned_interrupts=1
vfio_iommu_type1.allow_unsafe_interrupts=1 default_hugepagesz=1G hugepagesz=1G
crashkernel=768M
ProcVersionSignature: Ubuntu 5.3.0-62.56~18.04.1-generic 5.3.18
RelatedPackageVersions:
linux-restricted-modules-5.3.0-62-generic N/A
linux-backports-modules-5.3.0-62-generic N/A
linux-firmware 1.173.19
Tags: bionic
Uname: Linux 5.3.0-62-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dialout dip kvm libvirt lpadmin plugdev sambashare sudo
vboxusers
_MarkForUpload: True
dmi.bios.date: 08/27/2019
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: P3.70
dmi.board.name: X399 Professional Gaming
dmi.board.vendor: ASRock
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 3
dmi.chassis.vendor: Default string
dmi.chassis.version: Default string
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvrP3.70:bd08/27/2019:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnX399ProfessionalGaming:rvr:cvnDefaultstring:ct3:cvrDefaultstring:
dmi.product.family: To Be Filled By O.E.M.
dmi.product.name: To Be Filled By O.E.M.
dmi.product.sku: To Be Filled By O.E.M.
dmi.product.version: To Be Filled By O.E.M.
dmi.sys.vendor: To Be Filled By O.E.M.
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