Comment 16 for bug 1988473

I am experiencing the same problem with linux 5.15.0-47 and VirtualBox 6.1.34-dfsg-3~ubuntu1.22.04.1:
Several VMs (guest OSes: Linux, FreeBSD, OpenBSD, Hurd) show malfunctions:
  - compiler crashes with internal compiler error,
  - assembler crashes,
  - sh report malloc/free mismatches,
  - gnome-shell crashes,
  - Hurd file system gets damaged.
The malfunctions are especially frequent when the system is loaded (top shows
a load larger than 2).

I changed the config of 2 VMs to reduce hardware virtualization:
- System > Motherboard > Extended Features > I/O APIC: Disable
- System > Acceleration > Paravirtualization Interface: Default -> None
- System > Acceleration > Hardware Virtualization > Enable Nested Paging: Disable
and let the two VMs run at full power at the same time. It was still unstable.

After downgrading to linux 5.15.0-46 — keeping the same VirtualBox version —,
I can again run 6 VMs in parallel, doing compilations at full power, and everything is fine.

System: AMD Ryzen 7 4800U with Radeon Graphics