Date: Mon, 4 Nov 2013 14:12:56 +0000 (UTC) From: Peter Holm <pho@FreeBSD.org> To: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: svn commit: r257634 - user/pho/stress2/misc Message-ID: <201311041412.rA4ECuhr098373@svn.freebsd.org>
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Author: pho Date: Mon Nov 4 14:12:56 2013 New Revision: 257634 URL: http://svnweb.freebsd.org/changeset/base/257634 Log: Added regression test. Sponsored by: EMC / Isilon storage division Added: user/pho/stress2/misc/kevent8.sh (contents, props changed) Added: user/pho/stress2/misc/kevent8.sh ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ user/pho/stress2/misc/kevent8.sh Mon Nov 4 14:12:56 2013 (r257634) @@ -0,0 +1,161 @@ +#!/bin/sh + +# +# Copyright (c) 2013 EMC Corp. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE +# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. +# +# $FreeBSD$ + +# Out of VM seen due to missing close of kqueue handle. +# Fixed in 256849 + +. ../default.cfg + +ulimit -k 10000 || { echo FAIL; exit 1; } + +odir=`pwd` + +cd /tmp +sed '1,/^EOF/d' < $odir/$0 > kevent8.c +cc -o kevent8 -Wall -Wextra -O2 -g kevent8.c -lpthread || exit 1 +rm -f kevent8.c +cd $odir + +mount | grep "on $mntpoint " | grep -q md$mdstart && umount -f $mntpoint +mdconfig -l | grep -q $mdstart && mdconfig -d -u $mdstart + +mdconfig -a -t swap -s 2g -u ${mdstart} +bsdlabel -w md$mdstart auto +newfs -U md${mdstart}$part > /dev/null +mount /dev/md${mdstart}$part $mntpoint +chmod 777 $mntpoint + +su $testuser -c "(cd $mntpoint; /tmp/kevent8)" & +sleep 99 +umount -f $mntpoint +killall kevent8 +wait + +while mount | grep -q $mntpoint; do + umount $mntpoint || sleep 1 +done +mdconfig -d -u $mdstart +rm -f /tmp/kevent8 + +exit +EOF +#include <sys/types.h> +#include <sys/mman.h> +#include <sys/event.h> +#include <err.h> +#include <errno.h> +#include <fcntl.h> +#include <pthread.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <sys/wait.h> +#include <sched.h> +#include <signal.h> + +#define PARALLEL 64 + +static char path[80]; + +int fd; + +void * +spin(void *arg __unused) +{ + int i; + setproctitle("spin"); + + for (i= 0;; i++) { + snprintf(path, sizeof(path), "file.%06d.%d", getpid(), i); + if ((fd = open(path, O_CREAT | O_TRUNC | O_RDWR, 0622)) == -1) + err(1, "creat()"); + close(fd); + fd = 0; + unlink(path); + } + return (NULL); +} + +void * +test(void *arg __unused) +{ + int kq; + int i, n; + struct kevent ev; + struct timespec ts; + + for (i = 0; i < 500000; i++) { + if ((kq = kqueue()) < 0) + if (errno != ENOMEM) + err(1, "kqueue()"); + + n = 0; + memset(&ev, 0, sizeof(ev)); + EV_SET(&ev, fd, EVFILT_VNODE, EV_ADD | EV_ENABLE | EV_CLEAR, + NOTE_DELETE|NOTE_RENAME|NOTE_EXTEND, 0, 0); + n++; + + if (kevent(kq, &ev, n, NULL, 0, NULL) < 0) + continue; /* Note: missing close(kq)! */ + + memset(&ev, 0, sizeof(ev)); + ts.tv_sec = 0; + ts.tv_nsec = 1000000; + if ((n = kevent(kq, NULL, 0, &ev, 1, &ts)) == -1) + err(1, "kevent()"); + + close(kq); + } + return (NULL); +} + + +int +main(void) +{ + int i; + pthread_t cp[PARALLEL], sp; + + if (pthread_create(&sp, NULL, spin, NULL) != 0) + perror("pthread_create"); + + for (i = 0; i < PARALLEL; i++) { + if (pthread_create(&cp[i], NULL, test, NULL) != 0) + perror("pthread_create"); + } + + + for (i = 0; i < PARALLEL; i++) + pthread_join(cp[i], NULL); + + close(fd); + + return (0); +}
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