>Happens on any recent system or qemu with -cpu host
Changed CPU type to kvm32, seemed to work now. Well, for a moment.
>Apparently you need a program called smp to use smp.
Why the fuck. Pinned cores to the physical ones, it appears when running stress only one of them gets used. With that smp.c thingy, all but the first one. htop still shows only one core.
Screenshot_20240905_154438.png