1/*
2 * Some or all of this work - Copyright (c) 2006 - 2021, Intel Corp.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without modification,
6 * are permitted provided that the following conditions are met:
7 *
8 * Redistributions of source code must retain the above copyright notice,
9 * this list of conditions and the following disclaimer.
10 * Redistributions in binary form must reproduce the above copyright notice,
11 * this list of conditions and the following disclaimer in the documentation
12 * and/or other materials provided with the distribution.
13 * Neither the name of Intel Corporation nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
18 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
21 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
25 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
26 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29/*
30 * Bug 239:
31 *
32 * SUMMARY: Crash in a slack-multi-threading mode when returning from the method experienced exception
33 *
34 * Note:
35 *
36 *   Run this in a slack mode (use AcpiExec -s <this_demo>)
37 *   by the Threads debug operation on more than one thread
38 *   (use <Threads 2 1 main> command). In this case the example
39 *   causes crash of AcpiExec for any exception occurred during
40 *   execution of methods (m000, m001).
41 */
42
43Mutex(MX08, 8)
44Mutex(MX09, 9)
45
46Method(m034)
47{
48
49	Method(mm00, 1)
50	{
51		Method(m000)
52		{
53			Acquire(MX09, 0xffff)
54			/*
55			 * Operation below causes AE_AML_MUTEX_ORDER exception
56			 * (it is correct).
57			 */
58			Acquire(MX08, 0xffff)
59		}
60
61		Method(m001, 1)
62		{
63			/*
64			 * Operation below causes AE_AML_DIVIDE_BY_ZERO exception
65			 */
66			Divide(1, arg0)
67		}
68
69		/* Any of these calls causes crash of AcpiExec */
70
71		if (0) {
72			m000()
73		}
74		if (1) {
75			m001(0)
76		}
77	}
78
79	/* This example doesn't cause crash */
80	Method(mm01, 1)
81	{
82		Divide(1, arg0)
83	}
84
85	Method(mm02)
86	{
87		if (1) {
88			mm00(0)
89		}
90		if (0) {
91			/* This example doesn't cause crash */
92			mm01(0)
93		}
94	}
95
96	mm02()
97}
98