diff -r a75564db03c3 -r 0d375492beb7 util/m5/Makefile.x86
--- a/util/m5/Makefile.x86	Wed Jul 21 09:55:57 2010 -0700
+++ b/util/m5/Makefile.x86	Wed Jul 21 14:55:38 2010 -0700
@@ -31,7 +31,8 @@
 AS=as
 LD=ld
 
-CFLAGS=-O2 
+CFLAGS=-O2
+LDFLAGS=-static
 OBJS=m5.o m5op_x86.o
 
 all: m5
@@ -43,7 +44,7 @@
 	$(CC)  $(CFLAGS) -o $@ -c $<
 
 m5: $(OBJS)
-	$(CC) -o $@ $(OBJS)
+	$(CC) $(LDFLAGS) -o $@ $(OBJS)
 
 clean:
 	rm -f *.o m5
diff -r a75564db03c3 -r 0d375492beb7 util/m5/m5.c
--- a/util/m5/m5.c	Wed Jul 21 09:55:57 2010 -0700
+++ b/util/m5/m5.c	Wed Jul 21 14:55:38 2010 -0700
@@ -65,6 +65,11 @@
     int offset = 0;
     int len;
 
+    // Touch all buffer pages to ensure they are mapped in the
+    // page table. This is required in the case of X86_FS, where
+    // Linux does demand paging.
+    memset(buf, 0, sizeof(buf));
+
     while ((len = m5_readfile(buf, sizeof(buf), offset)) > 0) {
         write(dest_fid, buf, len);
         offset += len;
diff -r a75564db03c3 -r 0d375492beb7 util/m5/m5ops.h
--- a/util/m5/m5ops.h	Wed Jul 21 09:55:57 2010 -0700
+++ b/util/m5/m5ops.h	Wed Jul 21 14:55:38 2010 -0700
@@ -52,6 +52,7 @@
 #define addsymbol_func          0x53
 #define panic_func              0x54
 
+#define reserved1_func          0x55 // Reserved for user
 #define reserved2_func          0x56 // Reserved for user
 #define reserved3_func          0x57 // Reserved for user
 #define reserved4_func          0x58 // Reserved for user