# Kernel build with fix.diff applied (guest /usr/src, DF 6.5-DEVELOPMENT)
#
# NOTE: the full ~25-minute build transcript lived in the guest's /tmp/kbuild.log
# which DragonFly cleared at the fix-validation reboot. What is preserved below
# is (a) the exact commands, (b) the decisive compile lines observed live while
# polling the build, (c) BUILD_DONE_OK, and (d) post-hoc object-file proof that
# the patched translation units were compiled and linked into the running kernel.

$ cd /usr/src && patch < /tmp/fix.diff
Patching file sys/kern/uipc_accf.c using Plan A... Hunk #1..#4 succeeded
Patching file sys/kern/uipc_socket.c using Plan A... Hunk #1..#3 succeeded
Patching file sys/sys/socketvar.h using Plan A... Hunk #1..#2 succeeded
PATCHED

$ cd /usr/src && make nativekernel KERNCONF=X86_64_GENERIC && make installkernel KERNCONF=X86_64_GENERIC
[... 838+ cc lines ...]
cc -c -O2 -pipe -Wall -Wredundant-decls ... -Werror /usr/src/sys/kern/uipc_accf.c -Werror
cc -c -O2 -pipe -Wall -Wredundant-decls ... -Werror /usr/src/sys/kern/uipc_socket.c -Werror
[... modules: u4b, acpica, dm, amdgpu, i915 ...]
BUILD_DONE_OK

# post-hoc proof the patched objects are in the RUNNING kernel (#1):
-rw-r--r--  1 root  wheel  152552 Sep  4 12:35 /usr/obj/usr/src/sys/X86_64_GENERIC/uipc_accf.o
-rw-r--r--  1 root  wheel  333376 Sep  4 12:35 /usr/obj/usr/src/sys/X86_64_GENERIC/uipc_socket.o
-r-xr-x-x  1 root  wheel 119354944 Sep  4 12:53 /boot/kernel/kernel
$ uname -a
DragonFly dfbsd 6.5-DEVELOPMENT DragonFly 6.5-DEVELOPMENT #1: Fri Sep  4 12:39:28 UTC 2026  root@dfbsd:/usr/obj/usr/src/sys/X86_64_GENERIC  x86_64

# PoC binaries:
$ gcc -O2 -pipe -o srv2975 srv.c && gcc -O2 -pipe -o cli cli.c     (exit 0)