Comment 33 for bug 2012763

I modified the machine type to 'pc-q35-jammy-maxcpus' and revised the maxcpus to 512, I could see the vm could start, but also had some info like 'smpboot: native_cpu_up: bad cpu 297', could you help to look into the attached log for analysis?

The command I used:

$ sudo qemu-system-x86_64 -M pc-q35-jammy-maxcpus -smp cpus=512,maxcpus=512 -enable-kvm -net none -m 128G -nographic -kernel /boot/vmlinuz -initrd /boot/initrd.img -chardev stdio,mux=on,id=char0 -mon chardev=char0,mode=readline -serial chardev:char0 -append "console=ttyS0"