1f08c3bdfSopenharmony_ci/* 2f08c3bdfSopenharmony_ci * Out Of Memory (OOM) for mempolicy - need NUMA system support 3f08c3bdfSopenharmony_ci * 4f08c3bdfSopenharmony_ci * The program is designed to cope with unpredictable like amount and 5f08c3bdfSopenharmony_ci * system physical memory, swap size and other VMM technology like KSM, 6f08c3bdfSopenharmony_ci * memcg, memory hotplug and so on which may affect the OOM 7f08c3bdfSopenharmony_ci * behaviours. It simply increase the memory consumption 3G each time 8f08c3bdfSopenharmony_ci * until all the available memory is consumed and OOM is triggered. 9f08c3bdfSopenharmony_ci * 10f08c3bdfSopenharmony_ci * Copyright (C) 2010-2017 Red Hat, Inc. 11f08c3bdfSopenharmony_ci * 12f08c3bdfSopenharmony_ci * This program is free software; you can redistribute it and/or modify 13f08c3bdfSopenharmony_ci * it under the terms of the GNU General Public License as published by 14f08c3bdfSopenharmony_ci * the Free Software Foundation; either version 2 of the License, or 15f08c3bdfSopenharmony_ci * (at your option) any later version. 16f08c3bdfSopenharmony_ci * 17f08c3bdfSopenharmony_ci * This program is distributed in the hope that it will be useful, 18f08c3bdfSopenharmony_ci * but WITHOUT ANY WARRANTY; without even the implied warranty of 19f08c3bdfSopenharmony_ci * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See 20f08c3bdfSopenharmony_ci * the GNU General Public License for more details. 21f08c3bdfSopenharmony_ci */ 22f08c3bdfSopenharmony_ci 23f08c3bdfSopenharmony_ci#include "config.h" 24f08c3bdfSopenharmony_ci#include <sys/types.h> 25f08c3bdfSopenharmony_ci#include <sys/stat.h> 26f08c3bdfSopenharmony_ci#include <errno.h> 27f08c3bdfSopenharmony_ci#include <fcntl.h> 28f08c3bdfSopenharmony_ci#include <stdio.h> 29f08c3bdfSopenharmony_ci#if HAVE_NUMA_H 30f08c3bdfSopenharmony_ci#include <numa.h> 31f08c3bdfSopenharmony_ci#endif 32f08c3bdfSopenharmony_ci 33f08c3bdfSopenharmony_ci#include "lapi/abisize.h" 34f08c3bdfSopenharmony_ci#include "numa_helper.h" 35f08c3bdfSopenharmony_ci#include "mem.h" 36f08c3bdfSopenharmony_ci 37f08c3bdfSopenharmony_ci#ifdef HAVE_NUMA_V2 38f08c3bdfSopenharmony_ci 39f08c3bdfSopenharmony_cistatic void verify_oom(void) 40f08c3bdfSopenharmony_ci{ 41f08c3bdfSopenharmony_ci#ifdef TST_ABI32 42f08c3bdfSopenharmony_ci tst_brk(TCONF, "test is not designed for 32-bit system."); 43f08c3bdfSopenharmony_ci#endif 44f08c3bdfSopenharmony_ci 45f08c3bdfSopenharmony_ci tst_res(TINFO, "OOM on MPOL_BIND mempolicy..."); 46f08c3bdfSopenharmony_ci testoom(MPOL_BIND, 0, ENOMEM, 1); 47f08c3bdfSopenharmony_ci 48f08c3bdfSopenharmony_ci tst_res(TINFO, "OOM on MPOL_INTERLEAVE mempolicy..."); 49f08c3bdfSopenharmony_ci testoom(MPOL_INTERLEAVE, 0, ENOMEM, 1); 50f08c3bdfSopenharmony_ci 51f08c3bdfSopenharmony_ci tst_res(TINFO, "OOM on MPOL_PREFERRED mempolicy..."); 52f08c3bdfSopenharmony_ci testoom(MPOL_PREFERRED, 0, ENOMEM, 1); 53f08c3bdfSopenharmony_ci} 54f08c3bdfSopenharmony_ci 55f08c3bdfSopenharmony_cistatic void setup(void) 56f08c3bdfSopenharmony_ci{ 57f08c3bdfSopenharmony_ci if (!is_numa(NULL, NH_MEMS, 2)) 58f08c3bdfSopenharmony_ci tst_brk(TCONF, "The case need a NUMA system."); 59f08c3bdfSopenharmony_ci} 60f08c3bdfSopenharmony_ci 61f08c3bdfSopenharmony_cistatic struct tst_test test = { 62f08c3bdfSopenharmony_ci .needs_root = 1, 63f08c3bdfSopenharmony_ci .forks_child = 1, 64f08c3bdfSopenharmony_ci .max_runtime = TST_UNLIMITED_RUNTIME, 65f08c3bdfSopenharmony_ci .setup = setup, 66f08c3bdfSopenharmony_ci .test_all = verify_oom, 67f08c3bdfSopenharmony_ci .save_restore = (const struct tst_path_val[]) { 68f08c3bdfSopenharmony_ci {"/proc/sys/vm/overcommit_memory", "1", TST_SR_TBROK}, 69f08c3bdfSopenharmony_ci {} 70f08c3bdfSopenharmony_ci }, 71f08c3bdfSopenharmony_ci}; 72f08c3bdfSopenharmony_ci 73f08c3bdfSopenharmony_ci#else 74f08c3bdfSopenharmony_ci TST_TEST_TCONF(NUMA_ERROR_MSG); 75f08c3bdfSopenharmony_ci#endif 76