RELENG_8 kernel as of Apr 14 does not boot

[Alexey Dokuchaev]

Hi,

Just update my 8.x kernel sources last weekend, and newly built kernel did
not boot for me:

link_elf: symbol mem_range_softc undefined
KLD file acpi.ko - could not finalize loading
kernel trap 12 with interrupts disabled

This is stripped down kernel with everything possible loaded from modules.
Any ideas?  Did not see any warnings in UPDATING...

./danfe