From 17fd6fe97bac4bb98b26b8ddcf6e460dec29c1c3 Mon Sep 17 00:00:00 2001
From: Abdulaziz Ghuloum <aghuloum@cs.indiana.edu>
Date: Thu, 18 Oct 2007 00:16:53 -0400
Subject: [PATCH] * fixed a bug in mmap of sigaltstack.

---
 src/ikarus-main.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/ikarus-main.c b/src/ikarus-main.c
index 74c9418..3922d69 100644
--- a/src/ikarus-main.c
+++ b/src/ikarus-main.c
@@ -307,7 +307,8 @@ SYNOPSIS
 void
 register_alt_stack(){
 #ifndef __CYGWIN__
-  char* stk = mmap(0, SIGSTKSZ, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_ANON, -1, 0);
+  char* stk = mmap(0, SIGSTKSZ, PROT_READ|PROT_WRITE|PROT_EXEC, 
+                   MAP_PRIVATE|MAP_ANON, -1, 0);
 //  char* stk = ik_mmap(SIGSTKSZ);
   if(stk == (char*)-1){
     fprintf(stderr, "Cannot maloc an alt stack\n");