PRED_USER_STACK    19 arch/ia64/kernel/entry.h # define pUStk		PASTE(p,PRED_USER_STACK)
PRED_USER_STACK   756 arch/ia64/kernel/ptrace.c 		    && (pr & (1UL << PRED_USER_STACK)))
PRED_USER_STACK  1983 arch/ia64/kernel/unwind.c 		    (pr & (1UL << PRED_USER_STACK)))