diff test/compiler/7116216/StackOverflow.java @ 4743:dca455dea3a7

7116216: StackOverflow GC crash Summary: GC crash for explicit stack overflow checks after a C2I transition. Reviewed-by: coleenp, never Contributed-by: yang02.wang@sap.com, bertrand.delsart@oracle.com
author bdelsart
date Tue, 20 Dec 2011 12:33:05 +0100
parents
children 35acf8f0a2e4
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/compiler/7116216/StackOverflow.java	Tue Dec 20 12:33:05 2011 +0100
@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+/**
+ * @test
+ * @bug 7116216
+ * @summary The vm crashes when GC happens during throwing a StackOverflow exception
+ *
+ * @run main/othervm -Xcomp -Xbatch StackOverflow
+ */
+
+class StackOverflow {
+    static String stackOverflow_largeFrame_liveOopForGC;
+
+    public static int stackOverflow_largeFrame(int call_count, String liveOopForGC) {
+        try {
+            int return_count = stackOverflow_largeFrame(++call_count, liveOopForGC);
+            if (return_count == 0) {
+                try {
+                    LargeFrame.method_with_many_locals(liveOopForGC, 2,3,4,5,6,7,liveOopForGC);
+                } catch (StackOverflowError e2) {
+                    // access liveOopForGC to make it a live variable
+                    stackOverflow_largeFrame_liveOopForGC = liveOopForGC;
+                }
+            }
+            return return_count - 1;
+        } catch (StackOverflowError e) {
+            // Return a value that is large enough such that no unrecoverable
+            // stack overflow will occur afterwards, but that is small enough
+            // such that calling LargeFrame.method_with_many_locals() will
+            // cause a StackOverflowError.
+            // Don't use a call here because we're out of stack space anyway!
+            int tmp = call_count / 2;
+            return (tmp < 100 ? tmp : 100);
+        }
+    }
+    public static void main(String args[]) {
+        LargeFrame.method_with_many_locals(new Object(), 2,3,4,5,6,7,new Object());
+
+        stackOverflow_largeFrame(0, "this is a live oop to test GC");
+        System.out.println("finished ok!");
+    }
+}