172 lines
4.0 KiB
Bash
Executable File
172 lines
4.0 KiB
Bash
Executable File
#!/bin/sh
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#
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# Copyright (c) 2014 EMC Corp.
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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# Test multiple (parallel) core dumps and mount / umount.
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# mount(8) stuck in "ufs" or "tmpfs".
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# http://people.freebsd.org/~pho/stress/log/kostik724.txt
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# Fixed by r272535.
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# On i386 pgrep(1) loops. Fixed by r272566.
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# "Sleeping on "pmapdi" with the following non-sleepable locks held:"
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# https://people.freebsd.org/~pho/stress/log/kostik883.txt
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[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
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. ../default.cfg
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odir=`pwd`
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cd /tmp
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sed '1,/^EOF/d' < $odir/$0 > core3.c
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mycc -o core3 -Wall -Wextra -O2 core3.c || exit 1
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rm -f core3.c
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cd $odir
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mount | grep -q "on $mntpoint " && umount $mntpoint
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[ -c /dev/md$mdstart ] && mdconfig -d -u $mdstart
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mdconfig -a -t swap -s 1g -u $mdstart
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bsdlabel -w md$mdstart auto
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newfs $newfs_flags md${mdstart}$part > /dev/null
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mount /dev/md${mdstart}$part $mntpoint
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mkdir $mntpoint/d
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chmod 777 $mntpoint/d
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su $testuser -c "/tmp/core3 $mntpoint/d" &
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pid=$!
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sleep 1
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while pgrep -q core3; do
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[ -d $mntpoint/d ] &&
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umount -f $mntpoint
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done > /dev/null 2>&1 &
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while pgrep -q core3; do
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[ -d $mntpoint/d ] ||
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mount /dev/md${mdstart}$part $mntpoint
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done > /dev/null 2>&1
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wait $pid
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status=$?
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mount | grep -q "on $mntpoint " &&
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umount -f $mntpoint
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mdconfig -d -u $mdstart
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[ $status -ne 0 ] && exit $status
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# tmpfs
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mount -o size=1g -t tmpfs tmpfs $mntpoint
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su $testuser -c "/tmp/core3 $mntpoint/d" &
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pid=$!
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sleep 1
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while pgrep -q core3; do
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[ -d $mntpoint/d ] &&
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umount -f $mntpoint
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done > /dev/null &
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while pgrep -q core3; do
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if [ ! -d $mntpoint/d ]; then
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mount -t tmpfs tmpfs $mntpoint
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mkdir $mntpoint/d
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fi
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done
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wait $pid
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status=$?
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for i in `jot 5` ; do
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mount | grep -q "on $mntpoint " || break
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umount -f $mntpoint
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sleep 1
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done
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rm -f /tmp/core3
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exit $status
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EOF
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#include <sys/mman.h>
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#include <sys/wait.h>
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#include <err.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <unistd.h>
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#define PARALLEL 64
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#define SIZ (4 * 1024 * 1024)
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#define TIMEDOUT 22
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void *p;
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static void
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hand(int i __unused) { /* handler */
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_exit(TIMEDOUT);
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}
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void
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test(char *argv[])
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{
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size_t len;
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len = SIZ;
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p = mmap(NULL, len, PROT_READ | PROT_WRITE, MAP_ANON, -1, 0);
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/*
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* This loop caused mount to wait in "ufs".
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* Adding a usleep(200) would remove the hang.
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*/
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signal(SIGALRM, hand);
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alarm(600);
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while (chdir(argv[1]) == -1)
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;
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raise(SIGSEGV);
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_exit(0);
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}
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int
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main(int argc, char *argv[])
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{
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time_t start;
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int i, s, status;
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if (argc != 2)
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errx(1, "Usage: %s <path>", argv[0]);
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status = 0;
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start = time(NULL);
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while (time(NULL) - start < 600 && status == 0) {
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for (i = 0; i < PARALLEL; i++) {
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if (fork() == 0)
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test(argv);
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}
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for (i = 0; i < PARALLEL; i++) {
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wait(&s);
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if (WEXITSTATUS(s) == TIMEDOUT)
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status = 1;
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}
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}
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return (status);
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}
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