Guest: DragonFly dfbsd 6.5-DEVELOPMENT x86_64, QEMU/KVM 2 vCPU, 4060 MB physmem, root on vbd0s1d (HAMMER2), dumpdev+swap /dev/vbd0s1b (8 GB), securelevel -1. Baseline kernel: DragonFly 6.5-DEVELOPMENT #0: Thu Jul 2 06:02:54 UTC 2026 root@dfbsd:/usr/obj/usr/src/sys/X86_64_GENERIC (master DEV ISO) Patched kernel: DragonFly 6.5-DEVELOPMENT #1: Wed Oct 7 03:43:23 UTC 2026 (fix.diff applied to /usr/src, make nativekernel KERNCONF=X86_64_GENERIC) Source tree: identical to audit tree (sha256-verified for minidump_machdep.c, vmparam.h, pmap.h before the run).