1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
|
/*
* Copyright (c) 2000, 2024, 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
* @key stress
*
* @summary converted from VM testbase nsk/stress/stack/stack015.
* VM testbase keywords: [stress, stack, nonconcurrent]
* VM testbase readme:
* DESCRIPTION
* This test provokes multiple stack overflows in the multiple
* threads -- by invoking synchronized virtual recursive method
* for the given fixed depth of recursion from within another
* recursive method already deeply invoked.
* This test measures a number of recursive invocations until
* stack overflow, and then tries to provoke similar stack overflows
* in 10 times in each of 10 threads. Each provocation consists of
* invoking that recursive method for the given fixed depth
* of invocations which is 10 times that depth measured before.
* The test is deemed passed, if VM have not crashed, and
* if exception other than due to stack overflow was not
* thrown.
* COMMENTS
* This test crashes HS versions 2.0, 1.3, and 1.4 on Solaris.
* However, it passes against all these HS versions on Win32.
* See the bug:
* 4366625 (P4/S4) multiple stack overflow causes HS crash
*
* @requires vm.opt.DeoptimizeALot != true
* @run main/othervm/timeout=900 Stack015
*/
public class Stack015 extends Stack015i {
final static int THREADS = 10;
final static int CYCLES = 10;
final static int STEP = 10;
final static int RESERVE = 10;
public static void main(String[] args) {
//
// The test will invoke the particular Stack015.recurse()
// method via abstract test.recurse() invocations.
//
Stack015i test = new Stack015();
Stack015i.test = test;
//
// Measure maximal recursion depth until stack overflow:
//
int maxDepth = 0;
for (int depth = 0; ; depth += STEP) {
try {
test.recurse(depth);
maxDepth = depth;
} catch (StackOverflowError | OutOfMemoryError err) {
break;
}
}
System.out.println("Max. depth: " + maxDepth);
//
// Execute multiple threads repeatedly provoking stack overflows:
//
Stack015i threads[] = new Stack015i[THREADS];
for (int i = 0; i < threads.length; i++) {
threads[i] = new Stack015();
threads[i].depthToTry = RESERVE * maxDepth;
threads[i].start();
}
for (int i = 0; i < threads.length; i++) {
if (threads[i].isAlive()) {
try {
threads[i].join();
} catch (InterruptedException exception) {
throw new RuntimeException(exception);
}
}
}
//
// Check if unexpected exceptions were thrown:
//
for (int i = 0; i < threads.length; i++) {
if (threads[i].thrown != null) {
threads[i].thrown.printStackTrace();
throw new RuntimeException("Exception in the thread " + threads[i], threads[i].thrown);
}
}
}
synchronized void syncRecurse(int depth) {
if (depth > 0) {
syncRecurse(depth - 1);
}
}
}
abstract class Stack015i extends Thread {
//
// Pure virtual method:
//
abstract void syncRecurse(int depth);
void recurse(int depth) {
//
// Stack overflow must occur here:
//
syncRecurse(Stack015.STEP);
//
// If no stack overflow occured, try again with deeper stack:
//
if (depth > 0) {
recurse(depth - 1);
}
}
Throwable thrown = null;
int depthToTry;
static Stack015i test;
public void run() {
//
// Provoke multiple stack overflows:
//
for (int i = 0; i < Stack015.CYCLES; i++) {
try {
//
// All threads invoke the same synchronized method:
//
test.recurse(depthToTry);
throw new Exception(
"TEST_RFE: no stack overflow thrown" +
", need to try deeper recursion?");
} catch (StackOverflowError | OutOfMemoryError err) {
// It's OK
} catch (Throwable throwable) {
// It isn't OK!
thrown = throwable;
break;
}
}
}
}
|
