src/hotspot/share/runtime/os.cpp

rev 52037 : 8211852: inspect stack during error reporting
Reviewed-by:

@@ -1151,11 +1151,15 @@
   if (os::find(addr, st)) {
     return;
   }
 
   if (accessible) {
-    st->print_cr(INTPTR_FORMAT " points into unknown readable memory", p2i(addr));
+    st->print(INTPTR_FORMAT " points into unknown readable memory: ", p2i(addr));
+    int bytenum = (intptr_t)addr & (sizeof(intptr_t) - 1);
+    if (bytenum != 0) { st->print("(byte %d of) ", bytenum); }
+    os::print_hex_dump(st, align_down(addr    , sizeof(intptr_t)),
+                           align_up(  addr + 1, sizeof(intptr_t)), 1);
     return;
   }
 
   st->print_cr(INTPTR_FORMAT " is an unknown value", p2i(addr));
 }