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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