Kernel panic CURRENT r248596 at virtualbox-ose-kmod module load

[Ivan Klymenko]

I have
uname -a
FreeBSD nonamehost 10.0-CURRENT FreeBSD 10.0-CURRENT #0 r248596: Fri
Mar 22 01:17:08 EET 2013
ivan at nonamehost:/usr/obj/usr/src/sys/GENERIC  amd64

I updated the ports tree to r314921 and recompiled virtualbox-ose-kmod

After load the module a have kernel panic.

Panic  String:  Lock  vm  object  not  exclusively   locked   @
/usr/src/sys/vm/vm_page.c:1396

http://pkgupdate.nevosoft.ru/backtrace.txt