A kernel built from this source fail to boot on IIsi. First it says
mrg: a super wd 0xa092 OS # 0x92 addr 0x1814800
bk exit
 ... for a few screenfuls and in the end it says
trap type 1, code = f64d, v = 4961da41
kernel: Address error trap
pid = 0, pc = 0x0180a4d6, ps = 0x00002704, sfc = 0x00000001, dfc = 0x00000001
 ... goes into ddb and nothing happens.

 Sorry, Allen, I haven't tried your kernel binary yet (-:

-- 
'Good-bye and hello, as always'