builds OK:
-rw-r--r--  1 root  wheel  6984 Sep 26 05:08 /tmp/ab/fixed/df5024.ko
-rw-r--r--  1 root  wheel  6936 Sep 26 05:08 /tmp/ab/orig/df5024.ko
-- ORIGINAL pattern:
A:unknown-id: ioctl rc=-1 errno=22(Invalid argument) nonzero=1 marker8=255/256
  first64: ffffffffffffffff4446353032342121444635303234212144463530323421214446353032342121444635303234212144463530323421214446353032342121
B:short-set: ioctl rc=-1 errno=22(Invalid argument) nonzero=1 marker8=255/256
  first64: ffffffffffffffff4446353032342121444635303234212144463530323421214446353032342121444635303234212144463530323421214446353032342121
C:unknown-id: ioctl rc=-1 errno=22(Invalid argument) nonzero=1 marker8=255/256
  first64: ffffffffffffffff4446353032342121444635303234212144463530323421214446353032342121444635303234212144463530323421214446353032342121
-- FIXED pattern:
A:unknown-id: ioctl rc=-1 errno=22(Invalid argument) nonzero=0 marker8=0/256
  first64: 00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
B:short-set: ioctl rc=-1 errno=22(Invalid argument) nonzero=0 marker8=0/256
  first64: 00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
C:unknown-id: ioctl rc=-1 errno=22(Invalid argument) nonzero=0 marker8=0/256
  first64: 00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
== A/B complete, guest clean ==