EPROC_SLEADER
if (k->p_eflag & EPROC_SLEADER)
eproc.e_flag |= EPROC_SLEADER;
ep->e_flag |= EPROC_SLEADER;
ki->p_eflag |= EPROC_SLEADER;
if (kp->p_eflag & EPROC_SLEADER)