164 lines
3.8 KiB
Bash
Executable File
164 lines
3.8 KiB
Bash
Executable File
#!/bin/sh
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#
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# Copyright (c) 2013 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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# Out of VM seen due to missing close of kqueue handle.
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# Fixed in 256849
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. ../default.cfg
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[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
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ulimit -k 5000 || { echo FAIL; exit 1; }
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odir=`pwd`
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cd /tmp
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sed '1,/^EOF/d' < $odir/$0 > kevent8.c
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mycc -o kevent8 -Wall -Wextra -O2 -g kevent8.c -lpthread || exit 1
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rm -f kevent8.c
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cd $odir
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mount | grep "on $mntpoint " | grep -q md$mdstart && umount -f $mntpoint
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mdconfig -l | grep -q $mdstart && mdconfig -d -u $mdstart
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mdconfig -a -t swap -s 2g -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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chmod 777 $mntpoint
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su $testuser -c "(cd $mntpoint; /tmp/kevent8)" &
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for i in `jot 99`; do
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sleep 1
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kill -0 $! 2>/dev/null || break
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done
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umount -f $mntpoint
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pkill kevent8
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wait
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while mount | grep -q $mntpoint; do
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umount $mntpoint || sleep 1
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done
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mdconfig -d -u $mdstart
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rm -f /tmp/kevent8
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exit
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EOF
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#include <sys/types.h>
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#include <sys/event.h>
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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 <errno.h>
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#include <fcntl.h>
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#include <pthread.h>
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#include <sched.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 <unistd.h>
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#define PARALLEL 64
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static int fd;
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static char path[80];
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static void *
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spin(void *arg __unused)
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{
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int i;
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setproctitle("spin");
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for (i= 0;; i++) {
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snprintf(path, sizeof(path), "file.%06d.%d", getpid(), i);
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if ((fd = open(path, O_CREAT | O_TRUNC | O_RDWR, 0622)) ==
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-1)
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err(1, "creat()");
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close(fd);
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fd = 0;
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unlink(path);
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}
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return (NULL);
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}
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static void *
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test(void *arg __unused)
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{
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int kq;
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int i, n;
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struct kevent ev;
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struct timespec ts;
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for (i = 0; i < 500000; i++) {
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if ((kq = kqueue()) < 0)
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if (errno != ENOMEM)
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err(1, "kqueue()");
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n = 0;
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memset(&ev, 0, sizeof(ev));
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EV_SET(&ev, fd, EVFILT_VNODE, EV_ADD | EV_ENABLE | EV_CLEAR,
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NOTE_DELETE|NOTE_RENAME|NOTE_EXTEND, 0, 0);
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n++;
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if (kevent(kq, &ev, n, NULL, 0, NULL) < 0)
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continue; /* Note: missing close(kq)! */
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memset(&ev, 0, sizeof(ev));
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ts.tv_sec = 0;
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ts.tv_nsec = 1000000;
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if ((n = kevent(kq, NULL, 0, &ev, 1, &ts)) == -1)
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err(1, "kevent()");
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close(kq);
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}
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return (NULL);
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}
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int
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main(void)
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{
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pthread_t cp[PARALLEL], sp;
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int e, i;
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if ((e = pthread_create(&sp, NULL, spin, NULL)) != 0)
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errc(1, e, "pthread_create");
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for (i = 0; i < PARALLEL; i++) {
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if ((e = pthread_create(&cp[i], NULL, test, NULL)) != 0)
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errc(1, e, "pthread_create");
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}
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for (i = 0; i < PARALLEL; i++)
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pthread_join(cp[i], NULL);
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close(fd);
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return (0);
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}
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