Qemu 1:6.2+dfsg-2ubuntu6 deadlock bug There is a known bug that will cause VM deadlock, the patch should be merged and released: https://gitlab.com/qemu-project/qemu/-/commit/1dbbe6f172810026c51dc84ed927a3cc23017949#841723aa93098d8ab3b5068795e10ae7cf2a3179