Some random question regarding logging and tracing in qemu KVM

[panji dia]

Hi,

Just wondering if anyone has a preferred method to confirm or check whether your qemu/kvm is not running as expected or fails to boot at first time? 

I am facing issues with running some kvm instances using specific versions like ubuntu.24.04 and rocky 8 over redhat9 machines. Already turn on logs but not help that much. Is there any deep method that usually used by the community or something?

Thank you!

Best Regards,
Panji