kldxref: ...: Bad address.

This can't be good.

make buildworld
make buildkernel
make installkernel
...
===> zlib (install)
install -T release -o root -g wheel -m 555   zlib.ko /boot/kernel/
install -T debug -o root -g wheel -m 555   zlib.ko.debug /usr/lib/debug/boot/kernel/
kldxref /boot/kernel
kldxref: error while reading /boot/kernel/accf_data.ko: Bad address
kldxref: error while reading /boot/kernel/amr_linux.ko: Bad address
kldxref: error while reading /boot/kernel/chacha20.ko: Bad address
kldxref: error while reading /boot/kernel/cxgb_t3fw.ko: Bad address
kldxref: error while reading /boot/kernel/if_cc.ko: Bad address
kldxref: error while reading /boot/kernel/if_ccv.ko: Bad address
kldxref: error while reading /boot/kernel/if_cxl.ko: Bad address
kldxref: error while reading /boot/kernel/if_cxlv.ko: Bad address
kldxref: error while reading /boot/kernel/ipmi_linux.ko: Bad address
kldxref: error while reading /boot/kernel/nfslock.ko: Bad address
kldxref: error while reading /boot/kernel/nfssvc.ko: Bad address
kldxref: error while reading /boot/kernel/ng_nat.ko: Bad address
kldxref: error while reading /boot/kernel/pflog.ko: Bad address
kldxref: error while reading /boot/kernel/plip.ko: Bad address
kldxref: error while reading /boot/kernel/pty.ko: Bad address
kldxref: error while reading /boot/kernel/rc4.ko: Bad address
kldxref: error while reading /boot/kernel/rdrand_rng.ko: Bad address
kldxref: error while reading /boot/kernel/udf_iconv.ko: Bad address

-- 
Steve
20170425 https://www.youtube.com/watch?v=VWUpyCsUKR4
20161221 https://www.youtube.com/watch?v=IbCHE-hONow