1#!/bin/sh 2 3# 4# Copyright (c) 2014 EMC Corp. 5# All rights reserved. 6# 7# Redistribution and use in source and binary forms, with or without 8# modification, are permitted provided that the following conditions 9# are met: 10# 1. Redistributions of source code must retain the above copyright 11# notice, this list of conditions and the following disclaimer. 12# 2. Redistributions in binary form must reproduce the above copyright 13# notice, this list of conditions and the following disclaimer in the 14# documentation and/or other materials provided with the distribution. 15# 16# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26# SUCH DAMAGE. 27# 28 29# The test program calls fork(2) from a multi-threaded process. 30# Test program stuck in uwrlck seen. 31# Fixed in r266609. 32 33# Note that program erroneously calls exit(3) and not _exit(2). 34 35. ../default.cfg 36 37here=`pwd` 38cd /tmp 39sed '1,/^EOF/d' < $here/$0 > fork.c 40mycc -o fork -Wall -Wextra -O2 -g fork.c -lpthread || exit 1 41 42for i in `jot 100`; do 43 /tmp/fork & 44done 45while ! pgrep -q fork; do 46 sleep .2 47done 48for i in `jot 30`; do 49 pgrep -q fork || break 50 sleep 1 51done 52if pgrep -q fork; then 53 echo FAIL 54 exit 1 55fi 56wait 57 58rm -f /tmp/fork /tmp/fork.c 59exit 0 60EOF 61 62/* 63 * Written by Love H�rnquist �strand <lha@NetBSD.org>, March 2003. 64 * Public domain. 65 */ 66 67#include <sys/types.h> 68#include <sys/wait.h> 69 70#include <err.h> 71#include <errno.h> 72#include <pthread.h> 73#include <signal.h> 74#include <stdio.h> 75#include <stdlib.h> 76#include <string.h> 77#include <unistd.h> 78 79static pid_t parent; 80static int thread_survived = 0; 81 82static void * 83print_pid(void *arg __unused) 84{ 85 sleep(3); 86 87 thread_survived = 1; 88 if (parent != getpid()) { 89 exit(1); 90 } 91 return NULL; 92} 93 94int 95main(void) 96{ 97 int r; 98 pthread_t p; 99 pid_t fork_pid; 100 101 parent = getpid(); 102 103 r = pthread_create(&p, NULL, print_pid, NULL); 104 if (r != 0) 105 errx(1, "r = %d", r); 106 107 fork_pid = fork(); 108 if (fork_pid == -1) 109 err(1, "fork"); 110 111 if (fork_pid) { 112 int status; 113 114 r = pthread_join(p, NULL); 115 if (r != 0) 116 errx(1, "r = %d", r); 117 if (thread_survived == 0) 118 errx(1, "thread did not survive in parent"); 119 120 waitpid(fork_pid, &status, 0); 121 if (WIFEXITED(status) != 1) 122 printf("WIFEXITED(status) = %d\n", WIFEXITED(status)); 123 if (WEXITSTATUS(status) != 0) 124 printf("WEXITSTATUS(status) = %d\n", WEXITSTATUS(status)); 125 } else { 126 sleep(5); 127 exit(thread_survived ? 1 : 0); 128 } 129} 130