kernel: 0.969 debug: 0.955 virtual: 0.953 graphic: 0.896 ppc: 0.862 i386: 0.848 mistranslation: 0.832 semantic: 0.817 user-level: 0.806 device: 0.801 performance: 0.763 files: 0.742 vnc: 0.733 hypervisor: 0.731 risc-v: 0.713 x86: 0.703 assembly: 0.702 architecture: 0.699 peripherals: 0.670 VMM: 0.660 PID: 0.655 register: 0.641 permissions: 0.638 KVM: 0.622 network: 0.616 arm: 0.564 socket: 0.551 boot: 0.522 TCG: 0.499 No ACPI-table found, option -M 1.6 not found either Currently writing a small kernel, when trying to detect memory blocks that contain ACPI information, no such block is found. When ran in Oracle Virtualbox, code runs flawlessly. Code that is detecting the ACPI-Info (with a bit of debug-output): ``` multiboot_memory_map32_t* map = (multiboot_memory_map32_t*)mmap; for (uint32_t i = 0; i < size; i++) { Termutils::cout << map[i].type << "type of block "; if (mmap[i].type == MULTIBOOT_MEMORY_ACPI_RECLAIMABLE) { Termutils::cout << "WE ARE INSIDE\n"; fadt = (FADT*)(map[i].base_addr_low); //break; } if (i % 9 == 0) { Termutils::cout << "\n"; } } ``` command qemu is run with: qemu-img create build/objects/test 500M qemu-system-i386 -hda $(APP_DIR)/clinl.iso -hdb ./build/objects/test The iso-image is (zipped) included as attachment. qemu-system-i386 --version: QEMU emulator version 2.10.1(qemu-2.10.1-3.fc27) Copyright (c) 2003-2017 Fabrice Bellard and the QEMU Project developers The QEMU project is currently considering to move its bug tracking to another system. For this we need to know which bugs are still valid and which could be closed already. Thus we are setting older bugs to "Incomplete" now. If you still think this bug report here is valid, then please switch the state back to "New" within the next 60 days, otherwise this report will be marked as "Expired". Or mark it as "Fix Released" if the problem has been solved with a newer version of QEMU already. Thank you and sorry for the inconvenience. [Expired for QEMU because there has been no activity for 60 days.]