1 /*
2 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
3 * Copyright (c) 2020-2021 Huawei Device Co., Ltd. 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 * 1. Redistributions of source code must retain the above copyright notice, this list of
9 * conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
12 * of conditions and the following disclaimer in the documentation and/or other materials
13 * provided with the distribution.
14 *
15 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
16 * to endorse or promote products derived from this software without specific prior written
17 * permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
28 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
29 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31 #include "it_test_vm.h"
32
33 #define MAX_MEM_SIZE 0x6000000
34 /* test page fault oom */
Testcase(void)35 static int Testcase(void)
36 {
37 int ret;
38 int status;
39 int pid;
40 unsigned int *ptr = NULL;
41
42 ret = fork();
43 if (ret == 0) {
44 ptr = (unsigned int *)mmap(0, MAX_MEM_SIZE, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON, -1, 0);
45 ICUNIT_ASSERT_NOT_EQUAL(ptr, MAP_FAILED, ptr);
46 /* expect oom */
47 for (int i = 0; i < MAX_MEM_SIZE / PAGE_SIZE; i++) {
48 *(ptr + i * PAGE_SIZE / sizeof(unsigned int)) = 0;
49 }
50
51 /* if we go here, phy mem is enough, should increase the MAX_MEM_SIZE and rerun */
52 ICUNIT_ASSERT_EQUAL(1, 0, 1);
53 } else {
54 pid = ret;
55 ret = waitpid(pid, &status, 0);
56 status = WIFSIGNALED(status);
57 ICUNIT_ASSERT_EQUAL(ret, pid, ret);
58 ICUNIT_ASSERT_EQUAL(status, 1, status);
59 }
60
61 return 0;
62 }
63
ItTestOom001(void)64 void ItTestOom001(void)
65 {
66 TEST_ADD_CASE("IT_MEM_OOM_001", Testcase, TEST_LOS, TEST_MEM, TEST_LEVEL0, TEST_FUNCTION);
67 }
68