On Tue, Sep 15, 2020 at 12:56 PM Matthieu Baerts <matthieu.baerts@xxxxxxxxxxxx> wrote: > > I am sorry, I am not sure how to verify this. I guess it was one > processor because I removed "-smp 2" option from qemu. So I guess it > switched to a uniprocessor mode. Ok, that all sounds fine. So yes, your problem happens even with just one CPU, and it's not any subtle SMP race. Which is all good - apart from the bug existing in the first place, of course. It just reinforces the "it's probably a latent deadlock" thing. Linus