=== fix_build.log: kernel rebuild with fix.diff (guest, nativekernel) ===
patch machdep.c < /tmp/fix.diff
Patching file machdep.c using Plan A...
Hunk #1 succeeded at 3153.
(done)

cd /usr/src && make -j6 nativekernel KERNCONF=X86_64_GENERIC
...
--------------------------------------------------------------
>>> Kernel build for X86_64_GENERIC completed on Fri Oct  9 11:30:30 UTC 2026
--------------------------------------------------------------
BUILD_RC=0

cp /usr/obj/usr/src/sys/X86_64_GENERIC/kernel.stripped /boot/kernel/kernel
reboot -> uname -v:
DragonFly 6.5-DEVELOPMENT #1: Fri Oct  9 11:27:30 UTC 2026  root@dfbsd:/usr/obj/usr/src/sys/X86_64_GENERIC