1 /*
2 * Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 /*
25 * @test
26 * @key stress
27 *
28 * @summary converted from VM testbase nsk/stress/stack/stack012.
29 * VM testbase keywords: [stress, stack, nonconcurrent]
30 * VM testbase readme:
31 * DESCRIPTION
32 * This test provokes multiple stack overflows in the multiple
33 * threads -- by invoking final recursive method for the given
34 * fixed depth of recursion (though, for a large depth).
35 * This test measures a number of recursive invocations until
36 * stack overflow, and then tries to provoke similar stack overflows
37 * 10 times in each of 10 threads. Each provocation consists of
38 * invoking that recursive method for the given fixed depth
39 * of invocations which is 10 times that depth measured before.
40 * The test is deemed passed, if VM have not crashed, and
41 * if exception other than due to stack overflow was not
42 * thrown.
43 * COMMENTS
44 * This test crashes HS versions 1.3, 1.4 on Win32, and HS versions
45 * 2.0, 1.3, and 1.4 on Solaris. However, it passes against HS 2.0
46 * on Win32.
47 * See the bug:
48 * 4366625 (P4/S4) multiple stack overflow causes HS crash
49 *
50 * @requires vm.opt.DeoptimizeALot == null | vm.opt.DeoptimizeALot == false
51 * @run main/othervm nsk.stress.stack.stack012
52 */
53
54 package nsk.stress.stack;
55
56
57 import java.io.PrintStream;
58
59 public class stack012 extends Thread {
60 final static int THREADS = 10;
61 final static int CYCLES = 10;
62
63 public static void main(String[] args) {
64 int exitCode = run(args, System.out);
65 System.exit(exitCode + 95);
66 }
67
68 public static int run(String args[], PrintStream out) {
69 stack012 test = new stack012();
70 //
71 // Measure maximal recursion depth until stack overflow:
72 //
73 int maxDepth = 0;
74 for (int depth = 10; ; depth += 10)
75 try {
76 test.recurse(depth);
77 maxDepth = depth;
78 } catch (StackOverflowError soe) {
79 break;
80 } catch (OutOfMemoryError oome) {
81 break;
82 }
83 out.println("Max. depth: " + maxDepth);
84
85 //
86 // Execute multiple threads repeatedly provoking stack overflows:
87 //
88 stack012 threads[] = new stack012[THREADS];
89 for (int i = 0; i < threads.length; i++) {
90 threads[i] = new stack012();
91 threads[i].depthToTry = 10 * maxDepth;
92 threads[i].start();
93 }
94 for (int i = 0; i < threads.length; i++)
95 if (threads[i].isAlive())
96 try {
97 threads[i].join();
98 } catch (InterruptedException exception) {
99 exception.printStackTrace(out);
100 return 2;
101 }
102
103 //
104 // Check if unexpected exceptions were not thrown:
105 //
106 int exitCode = 0;
107 for (int i = 0; i < threads.length; i++)
108 if (threads[i].thrown != null) {
109 threads[i].thrown.printStackTrace(out);
110 exitCode = 2;
111 }
112
113 if (exitCode != 0)
114 out.println("# TEST FAILED");
115 return exitCode;
116 }
117
118 int depthToTry = 0;
119 Throwable thrown = null;
120
121 public void run() {
122 for (int i = 0; i < CYCLES; i++)
123 try {
124 this.recurse(depthToTry);
125 throw new Exception(
126 "TEST_RFE: no stack overflow thrown" +
127 ", need to try deeper recursion?");
128
129 } catch (StackOverflowError error) {
130 // It's OK: stack overflow was expected.
131 } catch (OutOfMemoryError oome) {
132 // Also OK: invocation may result in out of memory.
133
134 } catch (Throwable throwable) {
135 if (throwable instanceof ThreadDeath)
136 throw (ThreadDeath) throwable;
137 // It isn't OK!
138 thrown = throwable;
139 break;
140 }
141 }
142
143 final void recurse(int depth) {
144 if (depth > 0)
145 recurse(depth - 1);
146 }
147 }