Hi, This is a re-post of "[PATCH v8 03/16] hw/arm: do not free machine->fdt in arm_load_dtb()":
https://lists.gnu.org/archive/html/qemu-devel/2022-09/msg04201.html Turns out that I drop the ball and left this patch behind. Aside from some patches of that series that were optional, the way ARM code is working ATM is causing 'dumpdtb' to crash QEMU, as reported by Markus in https://lists.gnu.org/archive/html/qemu-devel/2023-03/msg05858.html . Applying this patch fixes the reported crash: $ ./qemu-system-aarch64 -S -M virt -display none -qmp stdio {"QMP": {"version": {"qemu": {"micro": 91, "minor": 2, "major": 7}, "package": "v8.0.0-rc1-37-g298c4469cf"}, "capabilities": ["oob"]}} {"execute": "qmp_capabilities", "arguments": {"enable": ["oob"]}} {"return": {}} {"execute": "dumpdtb", "arguments": {"filename": "fdt.dtb"}} {"return": {}} ^Cqemu-system-aarch64: terminating on signal 2 {"timestamp": {"seconds": 1679587153, "microseconds": 714319}, "event": "SHUTDOWN", "data": {"guest": false, "reason": "host-signal"}} $ $ dtc -I dtb -O dts fdt.dtb | grep timer timer { compatible = "arm,armv7-timer"; $ Cc: Peter Maydell <peter.mayd...@linaro.org> Cc: Markus Armbruster <arm...@redhat.com> Cc: qemu-...@nongnu.org Daniel Henrique Barboza (1): hw/arm: do not free machine->fdt in arm_load_dtb() hw/arm/boot.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) -- 2.39.2