diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/debug/onDebuggerStatement-03.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/debug/onDebuggerStatement-03.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,13 @@
+// A debugger statement in an onDebuggerStatement hook should not reenter.
+
+var g = newGlobal();
+var calls = 0;
+
+var dbg = Debugger(g);
+dbg.onDebuggerStatement = function (stack) {
+    calls++;
+    debugger;
+};
+
+assertEq(g.eval("debugger; 7;"), 7);
+assertEq(calls, 1);