kvm crashes host kernel on trusty+hwe-w (unable to handle kernel paging request in __mtrr_lookup_var_next)
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Triaged
|
Medium
|
Unassigned | ||
Wily |
Triaged
|
Medium
|
Unassigned | ||
linux-lts-wily (Ubuntu) |
Triaged
|
Medium
|
Unassigned | ||
Wily |
Triaged
|
Medium
|
Unassigned |
Bug Description
When building the test environment for subiquity I end up with an image I can run with qemu/kvm.
And I realized that this works fine with the Trusty kernel (Host), but when running on trusty+hwe-t (4.2.0-23-generic) it reliably crashes my host (not only the guest).
On the good side it seems
1. 1005 reproducible
2. always the same issue
The Commandline I run is:
sudo qemu-system-x86_64 -smp 2 -m 1024 -enable-kvm -bios /usr/share/
I'll attach what I've seen in dmesg, let me know if you need any more debug data.
If one provides me a upload target I can share the image I boot (2GB).
---
ApportVersion: 2.14.1-0ubuntu3.19
Architecture: amd64
CurrentDesktop: KDE
DistroRelease: Ubuntu 14.04
HibernationDevice: RESUME=
InstallationDate: Installed on 2015-08-14 (156 days ago)
InstallationMedia: Kubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150219.1)
MachineType: LENOVO 20BSCTO1WW
Package: linux (not installed)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=
ProcVersionSign
RelatedPackageV
linux-
linux-
linux-firmware 1.127.19
Tags: trusty
Uname: Linux 4.2.0-23-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip kvm libvirtd lp lpadmin lxd plugdev sambashare sbuild sudo
_MarkForUpload: True
dmi.bios.date: 06/26/2015
dmi.bios.vendor: LENOVO
dmi.bios.version: N14ET31W (1.09 )
dmi.board.
dmi.board.name: 20BSCTO1WW
dmi.board.vendor: LENOVO
dmi.board.version: SDK0E50510 WIN
dmi.chassis.
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.
dmi.modalias: dmi:bvnLENOVO:
dmi.product.name: 20BSCTO1WW
dmi.product.
dmi.sys.vendor: LENOVO
affects: | kvm (Ubuntu) → qemu (Ubuntu) |
Changed in qemu (Ubuntu): | |
importance: | Undecided → High |
affects: | qemu (Ubuntu) → linux (Ubuntu) |
https:/ /lists. debian. org/debian- kernel/ 2015/10/ msg00332. html
common threads 4.2 kernel and UEFI mode of kvm.