svn commit: r255834 - user/pho/stress2/misc

[Peter Holm]

Author: pho
Date: Tue Sep 24 06:48:28 2013
New Revision: 255834
URL: http://svnweb.freebsd.org/changeset/base/255834

Log:
  Added kevent(2) regression test.
  
  Sponsored by:	EMC / Isilon storage division

Added:
  user/pho/stress2/misc/kevent6.sh   (contents, props changed)

Added: user/pho/stress2/misc/kevent6.sh
==============================================================================
--- /dev/null	00:00:00 1970	(empty, because file is newly added)
+++ user/pho/stress2/misc/kevent6.sh	Tue Sep 24 06:48:28 2013	(r255834)
@@ -0,0 +1,156 @@
+#!/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.
+#
+# $FreeBSD$
+#
+
+# "Sleeping thread (tid 101094, pid 13104) owns a non-sleepable lock" seen.
+# Fixed in r255798.
+
+. ../default.cfg
+
+odir=`pwd`
+
+cd /tmp
+sed '1,/^EOF/d' < $odir/$0 > kevent6.c
+cc -o kevent6 -Wall -Wextra -O2 -g kevent6.c -lpthread || exit 1
+rm -f kevent6.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/kevent6)"
+
+while mount | grep -q $mntpoint; do
+	umount $mntpoint || sleep 1
+done
+mdconfig -d -u $mdstart
+rm -f /tmp/kevent6
+
+exit
+EOF
+#include <sys/types.h>
+#include <err.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <pthread.h>
+#include <sched.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/event.h>
+#include <sys/mman.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+#define PARALLEL 8
+
+static char path[80];
+
+int fd;
+
+void *
+spin(void *arg __unused)
+{
+	int i;
+
+	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);
+		usleep(10000);
+		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)
+			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) {
+			close(kq);
+			continue;
+		}
+
+		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);
+}