LINUX_USRSTACK32
if (epp->ep_minsaddr > LINUX_USRSTACK32)
epp->ep_minsaddr = LINUX_USRSTACK32;
#if defined(LINUX_USRSTACK32) && defined(USRSTACK32)
LINUX_USRSTACK32 < USRSTACK32)
*sstack = (unsigned long)LINUX_USRSTACK32;