svn commit: r220383 - projects/stress2/misc
Peter Holm
pho at FreeBSD.org
Wed Apr 6 12:05:11 UTC 2011
Author: pho
Date: Wed Apr 6 12:05:09 2011
New Revision: 220383
URL: http://svn.freebsd.org/changeset/base/220383
Log:
Add the scenarios used to show the premature "out of space" problem for
Soft Updates, fixed in R220374.
Added:
projects/stress2/misc/linger.sh (contents, props changed)
projects/stress2/misc/linger2.sh (contents, props changed)
Added: projects/stress2/misc/linger.sh
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ projects/stress2/misc/linger.sh Wed Apr 6 12:05:09 2011 (r220383)
@@ -0,0 +1,166 @@
+#!/bin/sh
+
+#
+# Copyright (c) 2011 Peter Holm <pho at FreeBSD.org>
+# 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.
+#
+# $FreeBSD$
+#
+
+[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
+
+# Demonstrate premature "out of inodes" problem with SU
+
+. ../default.cfg
+
+here=`pwd`
+cd /tmp
+sed '1,/^EOF/d' < $here/$0 > linger.c
+cc -o linger -Wall -O2 linger.c
+rm -f linger.c
+cd $here
+
+mount | grep $mntpoint | grep -q /dev/md && umount -f $mntpoint
+mdconfig -l | grep -q md$mdstart && mdconfig -d -u $mdstart
+mdconfig -a -t swap -s 1g -u $mdstart
+bsdlabel -w md$mdstart auto
+[ $# -eq 1 ] && opt="$1"
+[ $# -eq 0 ] && opt=-U # No argument == -U
+echo "newfs $opt md${mdstart}$part"
+newfs $opt md${mdstart}$part > /dev/null
+mount /dev/md${mdstart}$part $mntpoint
+chmod 777 $mntpoint
+
+if ! su ${testuser} -c "cd $mntpoint; /tmp/linger $size"; then
+ min=2
+ [ -r $mntpoint/.sujournal ] && min=3
+ r=`df -hi $mntpoint | head -1`
+ echo " $r"
+ for i in `jot 10`; do
+ r=`df -hi $mntpoint | tail -1`
+ echo "`date '+%T'` $r"
+ [ `echo $r | awk '{print $6}'` = $min ] && break
+ sleep 10
+ done
+ ls -lR $mntpoint
+fi
+
+while mount | grep "$mntpoint " | grep -q /dev/md; do
+ umount $mntpoint || sleep 1
+done
+mdconfig -d -u $mdstart
+rm -f /tmp/linger
+exit
+EOF
+#include <err.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <sched.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/mount.h>
+#include <sys/param.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+#define PARALLEL 10
+static int size = 14130; /* 6 free inodes */
+
+int
+test(void)
+{
+ int error = 0, fd, i, j;
+ pid_t pid;
+ char file[128];
+
+ for (;;) {
+ if (access("rendezvous", R_OK) == 0)
+ break;
+ sched_yield();
+ }
+ pid = getpid();
+ for (j = 0; j < size; j++) {
+ sprintf(file,"p%05d.%05d", pid, j);
+ if ((fd = creat(file, 0660)) == -1) {
+ if (errno != EINTR) {
+ warn("creat(%s). %s:%d", file, __FILE__, __LINE__);
+ unlink("continue");
+ error = 1;
+ break;
+ }
+ }
+ if (fd != -1 && close(fd) == -1)
+ err(2, "close(%d)", j);
+
+ }
+ sleep(3);
+
+ if (error == 0)
+ j--;
+ for (i = j; i >= 0; i--) {
+ sprintf(file,"p%05d.%05d", pid, i);
+ if (unlink(file) == -1)
+ err(3, "unlink(%s)", file);
+
+ }
+ return (0);
+}
+
+int
+main(void)
+{
+ int error = 0, fd, i, j, status;
+
+ umask(0);
+ if ((fd = open("continue", O_CREAT, 0644)) == -1)
+ err(1, "open()");
+ close(fd);
+ for (i = 0; i < 100; i++) {
+ for (j = 0; j < PARALLEL; j++) {
+ if (fork() == 0) {
+ test();
+ exit(0);
+ }
+ }
+
+ if ((fd = open("rendezvous", O_CREAT, 0644)) == -1)
+ err(1, "open()");
+ close(fd);
+
+ for (j = 0; j < PARALLEL; j++) {
+ wait(&status);
+ error += status;
+ }
+
+ unlink("rendezvous");
+ if (access("continue", R_OK) == -1) {
+ fprintf(stderr, "Loop #%d\n", i + 1);
+ break;
+ }
+ }
+ unlink("continue");
+
+ return (error != 0);
+}
Added: projects/stress2/misc/linger2.sh
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ projects/stress2/misc/linger2.sh Wed Apr 6 12:05:09 2011 (r220383)
@@ -0,0 +1,176 @@
+#!/bin/sh
+
+#
+# Copyright (c) 2011 Peter Holm <pho at FreeBSD.org>
+# 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.
+#
+# $FreeBSD$
+#
+
+[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
+
+# Variation of linger.sh, with emphasis on blocks.
+
+. ../default.cfg
+
+here=`pwd`
+cd /tmp
+sed '1,/^EOF/d' < $here/$0 > linger2.c
+cc -o linger2 -Wall -O2 linger2.c
+rm -f linger2.c
+cd $here
+
+mount | grep $mntpoint | grep -q /dev/md && umount -f $mntpoint
+mdconfig -l | grep -q md$mdstart && mdconfig -d -u $mdstart
+mdconfig -a -t swap -s 1g -u $mdstart
+bsdlabel -w md$mdstart auto
+[ $# -eq 1 ] && opt="$1"
+[ $# -eq 0 ] && opt=-U # The default is "-U"
+echo "newfs $opt md${mdstart}$part"
+newfs $opt md${mdstart}$part > /dev/null
+mount /dev/md${mdstart}$part $mntpoint
+chmod 777 $mntpoint
+
+min=24
+[ -r $mntpoint/.sujournal ] && { size=88; min=8232; }
+if ! su ${testuser} -c "cd $mntpoint; /tmp/linger2 $size"; then
+ ls -lR $mntpoint
+ r=`df -i $mntpoint | head -1`
+ echo " $r"
+ for i in `jot 10`; do
+ r=`df -ik $mntpoint | tail -1`
+ echo "`date '+%T'` $r"
+ [ `echo $r | awk '{print $3}'` -le $min ] && break
+ sleep 10
+ done
+fi
+
+while mount | grep "$mntpoint " | grep -q /dev/md; do
+ umount $mntpoint || sleep 1
+done
+mdconfig -d -u $mdstart
+rm -f /tmp/linger2
+exit
+EOF
+#include <err.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <sched.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/param.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+#define PARALLEL 10
+static int size = 89;
+
+int
+test(void)
+{
+ int error = 0, fd, i, j;
+ pid_t pid;
+ char file[128];
+ char *buf;
+
+ for (;;) {
+ if (access("rendezvous", R_OK) == 0)
+ break;
+ sched_yield();
+ }
+ pid = getpid();
+ buf = malloc(1024 * 1024);
+ for (j = 0; j < size; j++) {
+ sprintf(file,"p%05d.%05d", pid, j);
+ if ((fd = creat(file, 0660)) == -1) {
+ if (errno != EINTR) {
+ warn("creat(%s). %s:%d", file, __FILE__, __LINE__);
+ unlink("continue");
+ error = 1;
+ break;
+ }
+ }
+ if (write(fd, buf, 1024 * 1024) != 1024 * 1024) {
+ warn("write()");
+ unlink("continue");
+ error = 1;
+ break;
+ }
+ if (fd != -1 && close(fd) == -1)
+ err(2, "close(%d)", j);
+
+ }
+ sleep(3);
+
+ if (error == 0)
+ j--;
+ for (i = j; i >= 0; i--) {
+ sprintf(file,"p%05d.%05d", pid, i);
+ if (unlink(file) == -1)
+ warn("unlink(%s)", file);
+
+ }
+ return (error);
+}
+
+int
+main(int argc, char **argv)
+{
+ int error = 0, fd, i, j, status;
+
+ if (argc == 2)
+ size = atoi(argv[1]);
+
+ umask(0);
+ if ((fd = open("continue", O_CREAT, 0644)) == -1)
+ err(1, "open()");
+ close(fd);
+ for (i = 0; i < 200; i++) {
+ for (j = 0; j < PARALLEL; j++) {
+ if (fork() == 0)
+ exit(test());
+ }
+
+ if ((fd = open("rendezvous", O_CREAT, 0644)) == -1)
+ err(1, "open()");
+ close(fd);
+
+ for (j = 0; j < PARALLEL; j++) {
+ wait(&status);
+ error += status;
+ }
+
+ unlink("rendezvous");
+ if (access("continue", R_OK) == -1) {
+ fprintf(stderr, "Loop #%d\n", i + 1);
+ break;
+ }
+// sleep(60); /* Debug */
+ }
+ unlink("continue");
+
+ return (error != 0);
+}
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