kernel install error

[kevin]

HI,
  I updated src 30mins ago, and rebuilt kernel.when i try to reboot my
system ,new kernel fails to boot.my custom kernel configue file works
well last week.

#time make WITH_CTF=1 buildkernel KERNCONF=G8laptop && make
installkernel KERNCONF=G8laptop

....
install -o root -g wheel -m 555   if_xl.ko /boot/kernel
===> zfs (install)
install -o root -g wheel -m 555   zfs.ko /boot/kernel
===> zlib (install)
install -o root -g wheel -m 555   zlib.ko /boot/kernel
kldxref /boot/kernel
kldxref: /boot/kernel/kernel: no .dynsym section found

664.171u 121.065s 13:34.25 96.4%	6002+1968k 9+1479io 48482pf+0w




Thanks,
kevin