svn commit: r255466 - user/pho/stress2/misc

[Peter Holm]

Author: pho
Date: Wed Sep 11 06:16:12 2013
New Revision: 255466
URL: http://svnweb.freebsd.org/changeset/base/255466

Log:
  Added one more "umount -f" test scenario.
  
  Sponsored by:	EMC / Isilon storage division

Added:
  user/pho/stress2/misc/umountf7.sh   (contents, props changed)

Added: user/pho/stress2/misc/umountf7.sh
==============================================================================
--- /dev/null	00:00:00 1970	(empty, because file is newly added)
+++ user/pho/stress2/misc/umountf7.sh	Wed Sep 11 06:16:12 2013	(r255466)
@@ -0,0 +1,170 @@
+#!/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.
+#
+# $FreeBSD$
+#
+
+# "panic: handle_written_inodeblock: live inodedep 0xcc731200" seen.
+# http://people.freebsd.org/~pho/stress/log/umountf7.txt
+# Problem only seen with SU+J.
+
+[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
+
+. ../default.cfg
+
+dir=/tmp
+odir=`pwd`
+cd $dir
+sed '1,/^EOF/d' < $odir/$0 > $dir/mv4.c
+cc -o mv4  -Wall -Wextra mv4.c -lpthread || exit 1
+rm -f mv4.c
+cd $odir
+
+mount | grep "on $mntpoint " | grep -q /dev/md && umount -f $mntpoint
+mdconfig -l | grep -q md$mdstart &&  mdconfig -d -u $mdstart
+mdconfig -a -t swap -s 3g -u $mdstart || exit 1
+bsdlabel -w md$mdstart auto
+newfs -j md${mdstart}$part > /dev/null
+mount /dev/md${mdstart}$part $mntpoint
+
+daemon sh -c '(cd ../testcases/swap; ./swap -t 2m -i 4)'
+parallel=4
+for j in `jot $parallel`; do
+	[ -d $mntpoint/$j ] || mkdir $mntpoint/$j
+done
+for j in `jot $parallel`; do
+	(cd $mntpoint/$j; /tmp/mv4 100000) &
+done
+sleep 60
+umount -f $mntpoint
+killall mv4
+for j in `jot $parallel`; do
+	wait
+done
+while ps auxww | grep -v grep | grep -qw swap; do
+	killall -9 swap 2>/dev/null
+done
+find $mntpoint -type f
+
+while mount | grep $mntpoint | grep -q /dev/md; do
+	umount $mntpoint || sleep 1
+done
+mdconfig -d -u $mdstart
+rm -f /tmp/mv4
+exit
+
+EOF
+#include <err.h>
+#include <fcntl.h>
+#include <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+pid_t pid;
+volatile int n, n2;
+int mx;
+
+void *
+cr(void *arg __unused)
+{
+	char file[80];
+	int fd, i;
+
+	for (i = 0; i < mx; i++) {
+		snprintf(file, sizeof(file), "f%06d.%06d", pid, i);
+		if ((fd = open(file, O_RDWR | O_CREAT | O_TRUNC, 0600)) < 0)
+			err(1, "open(%s)", file);
+		close(fd);
+		n++;
+	}
+        return (0);
+
+}
+
+void *
+mv(void *arg __unused)
+{
+	char from[80], to[80];
+	int i;
+
+	for (i = 0; i < mx; i++) {
+		while (n == -1 || i > n)
+			pthread_yield();
+		snprintf(from, sizeof(from), "f%06d.%06d", pid, i);
+		snprintf(to  , sizeof(to  ), "g%06d.%06d", pid, i);
+		if (rename(from, to) == -1)
+			warn("rename(%s, %s)", from, to);
+		n2++;
+	}
+
+        return (0);
+}
+
+void *
+rm(void *arg __unused)
+{
+	char file[80];
+	int i;
+
+	for (i = 0; i < mx; i++) {
+		while (n2 == -1 || i > n2)
+			pthread_yield();
+		snprintf(file, sizeof(file), "g%06d.%06d", pid, i);
+		if (unlink(file) == -1)
+			warn("unlink(%s)", file);
+	}
+
+        return (0);
+}
+
+int
+main(int argc, char **argv)
+{
+        pthread_t rp[3];
+	int i;
+
+	if (argc != 2)
+		errx(1, "Usage: %s <number of files>", argv[0]);
+	mx = atoi(argv[1]);
+	n = n2 = -1;
+	pid = getpid();
+
+	if (pthread_create(&rp[0], NULL, cr, NULL) != 0)
+		err(1, "pthread_create");
+	usleep(arc4random() % 1000);
+	if (pthread_create(&rp[1], NULL, mv, NULL) != 0)
+		err(1, "pthread_mv");
+	usleep(arc4random() % 1000);
+	if (pthread_create(&rp[2], NULL, rm, NULL) != 0)
+		perror("pthread_rm");
+
+        for (i = 0; i < 3; i++)
+                pthread_join(rp[i], NULL);
+
+	return (0);
+}