# Guest environment (DF-2386/2387/2590/2591 verification session, 2026-10-19) Baseline kernel uname: DragonFly dfbsd 6.5-DEVELOPMENT DragonFly 6.5-DEVELOPMENT #4: Mon Oct 19 09:05:52 UTC 2026 root@dfbsd:/usr/obj/usr/src/sys/PANHARNESS x86_64 Fixed kernel uname: DragonFly dfbsd 6.5-DEVELOPMENT DragonFly 6.5-DEVELOPMENT #6: Mon Oct 19 10:25:21 UTC 2026 root@dfbsd:/usr/obj/usr/src/sys/PANHARNESS x86_64 Stock snapshot kernel (pre-rig): DragonFly dfbsd 6.5-DEVELOPMENT DragonFly 6.5-DEVELOPMENT #0: Thu Jul 2 06:02:54 UTC 2026 root@dfbsd:/usr/obj/usr/src/sys/X86_64_GENERIC x86_64 kern.osreldate = 600519 Kernel config: PANHARNESS = X86_64_GENERIC + "device panasim" (line 56 of the generic config: "options INVARIANTS" -- INVARIANTS kernel, confirmed live by KKASSERT assertion panics and by kfree(NULL) INVARIANTS panic during fix iteration). QEMU: qemu-system-x86_64 -enable-kvm -m 4096 -smp 6, virtio disk/net, serial console to dfbsd-qemu/boot.log. Rig: /usr/src/sys/dev/acpica/panasim/{acpi_panasonic_verbatim.c,pana_shim.c, panasim.c,panasim.h}; sys/conf/files entries "optional panasim acpi". Verbatim source sha256 gate: 23e49741027f53dcedd05423f7c5eacd1be0dada1c46277dde0be6694b8d0912 Fixed-tree verbatim copy sha256 (after fix.diff): b312be607e3ec5b6b16e5ccb72c2aec8a70eca5d0e0b17a6ddcf63561b2be282 sizeof(ACPI_OBJECT) = 24 (external ACPICA object union, harness boot line: "PANASIM: harness up: sizeof(ACPI_OBJECT)=24 9-element package alloc=240") Hardware note: guest has no Panasonic MAT0019 ACPI device; the rig supplies the firmware side (probe/notify/SINF/HINF/SSET) at the exact API boundary the driver consumes. hw.acpi.power_profile_state machine state: PERFORMANCE path selected via interposed power_profile_get_state -> AC register set. Unprivileged test user: maxx uid=1001 gid=1001. Compiler: gcc80 (CCVER=gcc80), kernel built with make -j6 nativekernel KERNCONF=PANHARNESS.