qemu-system-i386 peggs 100% host CPU

Host environment

  • Operating system: Ubuntu and macOS
  • OS/kernel version: unknown
  • Architecture: i386
  • QEMU flavor: qemu-system-i386
  • QEMU version: (e.g. qemu-system-x86_64 --version)
  • QEMU command line: macOS - starts with UTM. Ubuntu - qemu-system-i386 -hda disk.qcow2 
    ./qemu-system-x86_64 -M q35 -m 4096 -enable-kvm -hda fedora32.qcow2

Emulated/Virtualized environment

  • Operating system: UNIX System V
  • OS/kernel version: 3.2
  • Architecture: x86

Description of problem

Before the guest OS even starts up, the host CPU eggs at 100%.

Steps to reproduce

  1. Start any VM using qemu-system-i386
  2. On Ubuntu use Virt Manager or command line.
  3. On macOS use UTM.

Additional information

Edited by Thomas Huth