[module builds — from session, final successful]
hack_a: cc -O2 -D_KERNEL -Werror -DKLD_MODULE ... -c pnphack.c ; cc -Wl,--build-id=sha1 ... -o pnphack.ko pnphack.o
hack_b: cc ... -c pnphack_b.c (wrapper: POISON_V=0x4000 EXTRA_TAGS=600) -> pnphack2.ko
hack_c: cc ... -c pnphack3_wrap.c (POISON_V=0x100FE EXTRA_TAGS=12000, stream[262144]) -> pnphack3.ko
fix build (patched kernel): A-RC=0 C-RC=0 (see fix_build_a.log guest-captured)