do not copy m_flag after M_MOVE_PKTHDR().  it would clear M_PKTHDR from the copy target. (this part should have been removed with M_COPY_PKTHDR.)
do not copy m_flag after M_MOVE_PKTHDR().  it would clear M_PKTHDR from the
copy target.
(this part should have been removed with M_COPY_PKTHDR.)

MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame