try to fix page fault

util/get_vaddr_info.py

@@ -0,0 +1,19 @@
+#!/usr/bin/env python3
+
+import sys
+
+if len(sys.argv) != 2:
+    print(f"Usage: {sys.argv[0]} <virtual_address (hex)>")
+    sys.exit(1)
+
+va = int(sys.argv[1], 16)
+
+def extract_index(name, shift):
+    return (va >> shift) & 0x1FF
+
+print(f"Virtual address : 0x{va:016x}")
+print(f"PML4 index : {extract_index('PML4', 39)}")
+print(f"PDPT index : {extract_index('PDPT', 30)}")
+print(f" PD  index : {extract_index('PD', 21)}")
+print(f" PT  index : {extract_index('PT', 12)}")
+print(f" Offset    : {va & 0xFFF}")