svn commit: r346047 - user/pho/stress2/misc
Peter Holm
pho at FreeBSD.org
Tue Sep 3 14:06:29 UTC 2019
Author: pho
Date: Tue Apr 9 07:36:40 2019
New Revision: 346047
URL: https://svnweb.freebsd.org/changeset/base/346047
Log:
Added a msdosfs regression test.
PR: 236977
Sponsored by: Dell EMC Isilon
Added:
user/pho/stress2/misc/truncate8.sh (contents, props changed)
Added: user/pho/stress2/misc/truncate8.sh
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ user/pho/stress2/misc/truncate8.sh Tue Apr 9 07:36:40 2019 (r346047)
@@ -0,0 +1,214 @@
+#!/bin/sh
+
+#
+# SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+#
+# Copyright (c) 2019 Dell EMC Isilon
+#
+# 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.
+#
+# $FreeBSD$
+#
+
+# Bug 236977 - [msdosfs] returns cached truncated data
+# Fixed by r345847
+
+. ../default.cfg
+[ `id -u` -ne 0 ] && echo "Must be root!" && exit 1
+
+dir=/tmp
+odir=`pwd`
+cd $dir
+sed '1,/^EOF/d' < $odir/$0 > $dir/truncate8.c
+mycc -o truncate8 -Wall -Wextra -O0 -g truncate8.c || exit 1
+rm -f truncate8.c
+cd $odir
+
+echo ufs:
+mount | grep -q "$mntpoint " && umount $mntpoint
+mdconfig -l | grep -q $mdstart && mdconfig -d -u $mdstart
+mdconfig -a -t swap -s 1g -u $mdstart
+bsdlabel -w md$mdstart auto
+newfs $newfs_flags md${mdstart}$part > /dev/null
+mount /dev/md${mdstart}$part $mntpoint
+
+(cd $mntpoint; /tmp/truncate8)
+s=$?
+[ $s -ne 0 ] && { echo "UFS exit status is $s"; status=1; }
+while mount | grep -q "$mntpoint "; do
+ umount $mntpoint || sleep 1
+done
+mdconfig -d -u $mdstart
+
+echo nfs:
+if ping -c 2 `echo $nfs_export | sed 's/:.*//'` > /dev/null 2>&1; then
+ mount -t nfs -o tcp -o retrycnt=3 -o intr,soft -o rw $nfs_export \
+ $mntpoint
+ sleep .2
+ (cd $mntpoint; /tmp/truncate8)
+ s=$?
+ [ $s -ne 0 ] && { echo "NFS exit status is $s"; status=1; }
+
+ umount $mntpoint || umount $mntpoint
+fi
+
+echo msdos:
+if [ -x /sbin/mount_msdosfs ]; then
+ mdconfig -a -t swap -s 1g -u $mdstart
+ bsdlabel -w md$mdstart auto
+ newfs_msdos -F 16 -b 8192 /dev/md${mdstart}$part > /dev/null 2>&1
+ mount_msdosfs -m 777 /dev/md${mdstart}$part $mntpoint
+
+ (cd /mnt; /tmp/truncate8)
+ s=$?
+ [ $s -ne 0 ] && { echo "MSDOS exit status is $s"; status=1; }
+ while mount | grep -q "$mntpoint "; do
+ umount $mntpoint || sleep 1
+ done
+ mdconfig -d -u $mdstart
+fi
+
+echo tmpfs:
+mount -t tmpfs null $mntpoint
+chmod 777 $mntpoint
+
+(cd $mntpoint; /tmp/truncate8)
+s=$?
+[ $s -ne 0 ] && { echo "TMPFS exit status is $s"; status=1; }
+while mount | grep -q "$mntpoint "; do
+ umount $mntpoint || sleep 1
+done
+
+rm -rf /tmp/truncate8
+exit $status
+
+EOF
+#include <sys/param.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+
+#include <machine/atomic.h>
+
+#include <err.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <unistd.h>
+
+static volatile u_int *share;
+
+#define BSIZE 5120
+#define FSIZE (128 * 1024 * 1024)
+#define PARALLEL 2
+#define RUNTIME (1 * 60)
+#define SYNC 0
+
+static void
+test(void)
+{
+ time_t start;
+ off_t pos;
+ int fd, i, n, r;
+ char *buf, name[128];
+
+ atomic_add_int(&share[SYNC], 1);
+ while (share[SYNC] != PARALLEL)
+ ;
+
+ srand48(getpid());
+ buf = malloc(BSIZE);
+ for (i = 0; i < (int)sizeof(buf); i++)
+ buf[i] = 123;
+
+ sprintf(name, "f%05d", getpid());
+ if ((fd = open(name, O_RDWR | O_CREAT, 0640)) == -1)
+ err(1, "%s", name);
+ for (i = 0; i < FSIZE / BSIZE; i++)
+ if (write(fd, buf, BSIZE) != BSIZE)
+ err(1, "write");
+
+ start = time(NULL);
+ while (time(NULL) - start < RUNTIME) {
+ pos = lrand48() % (FSIZE - BSIZE);
+// fprintf(stderr, "truncate(%jd)\n", (intmax_t)pos);
+ if (ftruncate(fd, pos) == -1)
+ err(1, "ftruncate");
+
+ if (ftruncate(fd, FSIZE) == -1)
+ err(1, "ftruncate");
+ if (lseek(fd, pos, SEEK_SET) == -1)
+ err(1, "lseek");
+ n = 0;
+ while ((r = read(fd, buf, BSIZE)) == BSIZE) {
+ n++;
+ for (i = 0; i < BSIZE; i++) {
+ if (buf[i] != 0)
+ errx(1, "Bad read value @ %jd = %d",
+ (intmax_t)(pos + i), buf[i]);
+ }
+ }
+ if (r == -1)
+ err(1, "read");
+ if (n != (FSIZE - pos) / BSIZE)
+ fprintf(stderr, "n = %d, target = %d\n", n, (int)(FSIZE - pos) / BSIZE);
+ }
+ unlink(name);
+
+ _exit(0);
+}
+
+int
+main(void)
+{
+ pid_t pids[PARALLEL];
+ size_t len;
+ int e, i, status;
+
+ e = 0;
+ len = PAGE_SIZE;
+ if ((share = mmap(NULL, len, PROT_READ | PROT_WRITE,
+ MAP_ANON | MAP_SHARED, -1, 0)) == MAP_FAILED)
+ err(1, "mmap");
+
+ for (i = 0; i < PARALLEL; i++) {
+ if ((pids[i] = fork()) == 0)
+ test();
+ if (pids[i] == -1)
+ err(1, "fork()");
+ }
+ for (i = 0; i < PARALLEL; i++) {
+ if (waitpid(pids[i], &status, 0) == -1)
+ err(1, "waitpid(%d)", pids[i]);
+ if (status != 0) {
+ if (WIFSIGNALED(status))
+ fprintf(stderr,
+ "pid %d exit signal %d\n",
+ pids[i], WTERMSIG(status));
+ }
+ e += status == 0 ? 0 : 1;
+ }
+
+ return (e);
+}
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