stress2: Initial import

Discussed with:	 kib

1 files changed, 200 insertions, 0 deletions

diff --git a/tools/test/stress2/misc/tmpfs16.sh b/tools/test/stress2/misc/tmpfs16.sh
new file mode 100755
index 000000000000..8cc3c3596a4e
--- /dev/null
+++ b/tools/test/stress2/misc/tmpfs16.sh
@@ -0,0 +1,200 @@
+#!/bin/sh
+
+#
+# Copyright (c) 2016 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.
+#
+
+# A fuzz test using random file descriptors with random seeks.
+# "panic: Assertion (cookie & TMPFS_DIRCOOKIE_MASK) == cookie failed":
+# https://people.freebsd.org/~pho/stress/log/kostik922.txt
+# Fixed by r303916.
+
+[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
+
+. ../default.cfg
+
+mount | grep -q "on $mntpoint " && umount -f $mntpoint
+mount -o size=1g -t tmpfs tmpfs $mntpoint
+RUNDIR=$mntpoint/stressX
+dir=$RUNDIR
+
+odir=`pwd`
+cd /tmp
+sed '1,/^EOF/d' < $odir/$0 > tmpfs16.c
+rm -f /tmp/tmpfs16
+mycc -o tmpfs16 -Wall -Wextra -O2 -g tmpfs16.c -lpthread || exit 1
+rm -f tmpfs16.c
+
+rm -rf $dir
+mkdir -p $dir
+chmod 777 $dir
+
+cd $dir
+jot 500 | xargs touch
+jot 500 | xargs chmod 666
+cd $odir
+
+(cd /tmp; /tmp/tmpfs16 $dir)
+e=$?
+
+rm -rf $dir
+umount $mntpoint
+
+rm -f /tmp/tmpfs16
+exit $e
+EOF
+#include <sys/param.h>
+#include <sys/resource.h>
+
+#include <err.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <fts.h>
+#include <libutil.h>
+#include <pthread.h>
+#include <pwd.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#define N (128 * 1024 / (int)sizeof(u_int32_t))
+#define RUNTIME 180
+#define THREADS 2
+
+static int fd[900];
+static u_int32_t r[N];
+static char *args[2];
+
+static unsigned long
+makearg(void)
+{
+	unsigned long val;
+
+	val = arc4random();
+#if defined(__LP64__)
+	val = (val << 31) | arc4random();
+	val = val & 0x00007fffffffffffUL;
+#endif
+
+	return(val);
+}
+
+static void *
+test(void *arg __unused)
+{
+	FTS *fts;
+	FTSENT *p;
+	int ftsoptions, i, n;
+
+	ftsoptions = FTS_PHYSICAL;
+
+	for (;;) {
+		for (i = 0; i < N; i++)
+			r[i] = arc4random();
+		if ((fts = fts_open(args, ftsoptions, NULL)) == NULL)
+			err(1, "fts_open");
+
+		i = n = 0;
+		while ((p = fts_read(fts)) != NULL) {
+			if (fd[i] > 0)
+				close(fd[i]);
+			if ((fd[i] = open(p->fts_path, O_RDWR)) == -1)
+				if ((fd[i] = open(p->fts_path, O_WRONLY)) == -1)
+				continue;
+			if (ftruncate(fd[i], 0) != 0)
+				err(1, "ftruncate");
+			i++;
+			i = i % nitems(fd);
+		}
+
+		if (fts_close(fts) == -1)
+			err(1, "fts_close()");
+		sleep(1);
+	}
+	return(0);
+}
+
+static void *
+calls(void *arg __unused)
+{
+	off_t offset;
+	time_t start;
+	int fd2;
+
+	start = time(NULL);
+	while ((time(NULL) - start) < RUNTIME) {
+		fd2 = makearg() % nitems(fd) + 3;
+		offset = makearg();
+		if (lseek(fd2, offset - 1, SEEK_SET) != -1) {
+			if (write(fd2, "x", 1) != 1)
+				if (errno != EBADF && errno != ENOSPC)
+					warn("write");
+		} else
+			if (errno != EBADF)
+				warn("lseek");
+		if (fsync(fd2) == -1)
+			if (errno != EBADF)
+				warn("x");
+
+	}
+
+	return (0);
+}
+
+int
+main(int argc, char **argv)
+{
+	struct passwd *pw;
+	pthread_t rp, cp[THREADS];
+	int e, i;
+
+	if (argc != 2) {
+		fprintf(stderr, "Usage: %s <dir>\n", argv[0]);
+		exit(1);
+	}
+	args[0] = argv[1];
+	args[1] = 0;
+
+	if ((pw = getpwnam("nobody")) == NULL)
+		err(1, "failed to resolve nobody");
+	if (setgroups(1, &pw->pw_gid) ||
+	    setegid(pw->pw_gid) || setgid(pw->pw_gid) ||
+	    seteuid(pw->pw_uid) || setuid(pw->pw_uid))
+		err(1, "Can't drop privileges to \"nobody\"");
+	endpwent();
+
+	if ((e = pthread_create(&rp, NULL, test, NULL)) != 0)
+		errc(1, e, "pthread_create");
+	usleep(1000);
+	for (i = 0; i < THREADS; i++)
+		if ((e = pthread_create(&cp[i], NULL, calls, NULL)) != 0)
+			errc(1, e, "pthread_create");
+	for (i = 0; i < THREADS; i++)
+		pthread_join(cp[i], NULL);
+
+	return (0);
+}