x86: 0.929 debug: 0.834 kernel: 0.829 device: 0.778 graphic: 0.747 architecture: 0.710 TCG: 0.701 mistranslation: 0.678 boot: 0.637 semantic: 0.624 PID: 0.605 register: 0.583 socket: 0.530 network: 0.513 i386: 0.503 permissions: 0.498 files: 0.497 ppc: 0.446 vnc: 0.410 arm: 0.389 virtual: 0.334 user-level: 0.325 risc-v: 0.291 performance: 0.241 VMM: 0.234 peripherals: 0.128 assembly: 0.068 hypervisor: 0.052 KVM: 0.016 tcg.c:3329: tcg fatal error I am currently building my own kernel with bootloader and qemu crashed after I have set an IDT in protected mode and then create a invalid opcode exception with the opcode 0xff. My code is here: https://github.com/Luis-Hebendanz/svm_kernel/blob/qemu_crash/svm_kernel/external/bootloader/src/main.rs#L80 Build instructions are here: https://github.com/Luis-Hebendanz/svm_kernel/tree/qemu_crash A precompiled binary is here: https://cloud.gchq.icu/s/LcjoDWRW2CbxJ5i I executed the following command: qemu-system-x86_64 -smp cores=4 -cdrom target/x86_64-os/debug/bootimage-svm_kernel.iso -serial stdio -display none -m 4G I am running QEMU emulator version 5.1.0 https://