DF-3350 build logs (guest)
===========================
PoC build:
  $ cc -O -Wall -o /tmp/df3350 /tmp/df3350.c
  (clean compile, no warnings)

Fix kernel build (inside guest /usr/src after applying fix.diff):
  $ patch -p1 < /tmp/fix.diff
      Patching file sys/net/dummynet/ip_dummynet.c using Plan A:
      Hunk #1 succeeded at 617.
      Hunk #2 succeeded at 1483.
      done
  $ make -j4 nativekernel KERNCONF=X86_64_GENERIC
      ... (2058+ compilation units, -Werror clean) ...
      --------------------------------------------------------------
      RC=0
  $ make installkernel KERNCONF=X86_64_GENERIC
      >>> Kernel install for X86_64_GENERIC completed on Fri Sep 11 06:16:30 UTC 2026
      RC=0
  $ reboot
  $ uname -v
      DragonFly 6.5-DEVELOPMENT #1: Fri Sep 11 06:08:07 UTC 2026  root@dfbsd:/usr/obj/usr/src/sys/X86_64_GENERIC