1#!/bin/sh 2 3# 4# SPDX-License-Identifier: BSD-2-Clause 5# 6# Copyright (c) 2023 Peter Holm <pho@FreeBSD.org> 7# 8# Redistribution and use in source and binary forms, with or without 9# modification, are permitted provided that the following conditions 10# are met: 11# 1. Redistributions of source code must retain the above copyright 12# notice, this list of conditions and the following disclaimer. 13# 2. Redistributions in binary form must reproduce the above copyright 14# notice, this list of conditions and the following disclaimer in the 15# documentation and/or other materials provided with the distribution. 16# 17# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18# 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 AUTHOR OR CONTRIBUTORS BE LIABLE 21# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27# SUCH DAMAGE. 28# 29 30# Another killpg(2) test scenario. No problems seen. 31 32. ../default.cfg 33export prog=$(basename "$0" .sh) 34set -u 35 36cat > /tmp/$prog.c <<EOF 37#include <sys/wait.h> 38#include <err.h> 39#include <time.h> 40#include <stdlib.h> 41#include <unistd.h> 42#define PARALLEL 2 43 44int 45test(void) 46{ 47 pid_t pid; 48 time_t start; 49 50 start = time(NULL); 51 while (time(NULL) - start < 300) { 52 if ((pid = fork()) == -1) 53 err(1, "fork()"); 54 if (pid == 0) { 55 if (arc4random() % 100 < 20) 56 usleep(arc4random() % 5000); 57 _exit(0); /* Not reached */ 58 } 59 if (waitpid(pid, NULL, 0) != pid) 60 err(1, "waitpid()"); 61 } 62 _exit(0); 63} 64 65int 66main(void) 67{ 68 pid_t pids[PARALLEL]; 69 int i; 70 71 for (i = 0; i < PARALLEL; i++) { 72 test(); 73 } 74 for (i = 0; i < PARALLEL; i++) { 75 if (waitpid(pids[i], NULL, 0) != pids[i]) 76 err(1, "waotpid() main"); 77 } 78 79} 80EOF 81mycc -o /tmp/$prog -Wall -Wextra -O2 /tmp/$prog.c || exit 1 82 83export MAXSWAPPCT=80 84../testcases/swap/swap -t 2m -i 5 > /dev/null 2>&1 & 85sleep .5 86start=`date +%s` 87while [ $((`date +%s` - start)) -lt 120 ]; do 88 for i in `jot 200 100`; do 89 ( 90 sl=$prog.$i 91 sleep=/tmp/$sl 92 cp /tmp/$prog $sleep 93 su $testuser -c "$sleep & $sleep & $sleep &" & pid=$! 94 for j in `jot 10`; do 95 pgrep -q "$sl" && break 96 sleep .5 97 done 98 pgrep -q "$sl" || { echo "No start"; exit 1; } 99 pgid=`pgrep "$sl" | xargs ps -jp | sed 1d | \ 100 tail -1 | awk '{print $4}'` 101 [ -z "$pgid" ] && { echo "Zero pgid:$pgid"; ps aj | \ 102 sed -n "1p;/$sl/p"; exit 1; } 103 sleep 1.`jot -r 1 2 9` 104 kill -- -$pgid || { echo "kill -$pgid failed"; exit 1; } 105 wait $pid 106 rm -f $sleep 107 ) & 108 done 109 while [ `ps -U$testuser | wc -l` -gt 1 ] ; do sleep 2; done 110done 111while pkill swap; do :; done 112wait 113rm /tmp/$prog /tmp/$prog.c 114exit 0 115