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diff --git a/js/src/tests/non262/GC/regress-203278-2.js b/js/src/tests/non262/GC/regress-203278-2.js
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+// |reftest| slow
+/* -*- tab-width: 2; indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 203278;
+var summary = 'Don\'t crash in recursive js_MarkGCThing';
+var actual = 'FAIL';
+var expect = 'PASS';
+
+printBugNumber(BUGNUMBER);
+printStatus (summary);
+
+// Prepare array to test DeutschSchorrWaite implementation
+// and its reverse pointer scanning performance
+
+var a = new Array(1000 * 1000);
+
+var i = a.length;
+while (i-- != 0) {
+ switch (i % 11) {
+ case 0:
+ a[i] = { };
+ break;
+ case 1:
+ a[i] = { a: true, b: false, c: 0 };
+ break;
+ case 2:
+ a[i] = { 0: true, 1: {}, 2: false };
+ break;
+ case 3:
+ a[i] = { a: 1.2, b: "", c: [] };
+ break;
+ case 4:
+ a[i] = [ false ];
+ break;
+ case 6:
+ a[i] = [];
+ break;
+ case 7:
+ a[i] = false;
+ break;
+ case 8:
+ a[i] = "x";
+ break;
+ case 9:
+ a[i] = new String("x");
+ break;
+ case 10:
+ a[i] = 1.1;
+ break;
+ case 10:
+ a[i] = new Boolean();
+ break;
+ }
+}
+
+printStatus("DSF is prepared");
+
+// Prepare linked list that causes recursion during GC with
+// depth O(list size)
+// Note: pass "-S 500000" option to the shell to limit stack quota
+// available for recursion
+
+for (i = 0; i != 50*1000; ++i) {
+ a = [a, a, {}];
+ a = [a, {}, a];
+
+}
+
+printStatus("Linked list is prepared");
+
+gc();
+
+actual = 'PASS';
+
+reportCompare(expect, actual, summary);
+