DF-0441 environment
===================
uname -a (unpatched baseline):
  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

uname -a (single-fix kernel, Phase 8):
  DragonFly dfbsd 6.5-DEVELOPMENT DragonFly 6.5-DEVELOPMENT #1: Sat Jul 18 12:48:52 UTC 2026     root@dfbsd:/usr/obj/usr/src/sys/X86_64_GENERIC  x86_64

Modules loaded for the run:
  kernel, ehci.ko, xhci.ko, pf.ko

sysctl kern.securelevel: -1  (insecure; no securelevel gate on pf ioctls)

Build env for the fixed kernel:
  make -j6 nativekernel KERNCONF=X86_64_GENERIC (warm obj from /usr/obj/usr/src/sys/X86_64_GENERIC)
  ~10 min full rebuild (kernel + all modules) due to header regen
  kernel.stripped copied to /boot/kernel/kernel; netgraph.ko from same build