Public bug reported:
I always run qemu in nested virtualization on top of Virtualbox. It always
worked OK till I tried Jammy Jellyfish. Note that Ubuntu 22.04 runs the same
configuration much slower that 21.04 and 21.10.
The issue is caused by Compiz in Ubuntu 14.04 or by qemu-system-x86 in Ubuntu
22.04 or the compatibility between the two.
See the two screenshots.
ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: qemu-system-x86 1:6.0+dfsg-2expubuntu4
ProcVersionSignature: Ubuntu 5.13.0-19.19-generic 5.13.14
Uname: Linux 5.13.0-19-generic x86_64
ApportVersion: 2.20.11-0ubuntu74
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: MATE
Date: Wed Dec 8 10:25:40 2021
InstallationDate: Installed on 2021-10-27 (41 days ago)
InstallationMedia: Ubuntu-MATE 22.04 LTS "Jammy Jellyfish" - Alpha amd64
(20211027)
Lsusb:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 002: ID 80ee:0021 VirtualBox USB Tablet
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Lsusb-t:
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/6p, 5000M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/8p, 480M
|__ Port 1: Dev 2, If 0, Class=Human Interface Device, Driver=usbhid, 12M
MachineType: innotek GmbH VirtualBox
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.13.0-19-generic
root=UUID=06e98806-67da-4b12-847f-de92360fcc5c ro quiet splash
SourcePackage: qemu
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/01/2006
dmi.bios.vendor: innotek GmbH
dmi.bios.version: VirtualBox
dmi.board.name: VirtualBox
dmi.board.vendor: Oracle Corporation
dmi.board.version: 1.2
dmi.chassis.type: 1
dmi.chassis.vendor: Oracle Corporation
dmi.modalias:
dmi:bvninnotekGmbH:bvrVirtualBox:bd12/01/2006:svninnotekGmbH:pnVirtualBox:pvr1.2:sku:rvnOracleCorporation:rnVirtualBox:rvr1.2:cvnOracleCorporation:ct1:cvr:
dmi.product.family: Virtual Machine
dmi.product.name: VirtualBox
dmi.product.version: 1.2
dmi.sys.vendor: innotek GmbH
** Affects: qemu (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug jammy
** Attachment added: "Screenshot from 2021-12-08 10-24-55.png"
https://bugs.launchpad.net/bugs/1953628/+attachment/5546285/+files/Screenshot%20from%202021-12-08%2010-24-55.png
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https://bugs.launchpad.net/bugs/1953628
Title:
Too high CPU load in qemu-system-x86 compared to Ubuntu 21.04/21.10
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