Date: Wed, 3 Dec 2014 09:59:48 +0000 (UTC) From: Peter Holm <pho@FreeBSD.org> To: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: svn commit: r275453 - user/pho/stress2/misc Message-ID: <201412030959.sB39xmcl000736@svn.freebsd.org>
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Author: pho Date: Wed Dec 3 09:59:47 2014 New Revision: 275453 URL: https://svnweb.freebsd.org/changeset/base/275453 Log: Added a regression test. Sponsored by: EMC / Isilon storage division Added: user/pho/stress2/misc/cmp.sh (contents, props changed) Added: user/pho/stress2/misc/cmp.sh ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ user/pho/stress2/misc/cmp.sh Wed Dec 3 09:59:47 2014 (r275453) @@ -0,0 +1,185 @@ +#!/bin/sh + +# +# Copyright (c) 2014 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. +# +# $FreeBSD$ +# + +# Cross mount test of mkdir(2). +# Page fault seen: +# http://people.freebsd.org/~pho/stress/log/cmp.txt +# Fixed by r275347 + +[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 + +. ../default.cfg + +here=`pwd` +cd /tmp +sed '1,/^EOF/d' < $here/$0 > cmp.c +cc -o cmp -Wall -Wextra -O2 -g cmp.c || exit 1 +rm -f cmp.c + +mount | grep $mntpoint | grep -q /dev/md && umount -f $mntpoint +[ -c /dev/md$mdstart ] && mdconfig -d -u $mdstart + +mdconfig -a -t swap -s 1g -u $mdstart || exit 1 +bsdlabel -w md$mdstart auto +# Don't use SU due to bogus "out of inodes" messages. +newfs md${mdstart}$part > /dev/null +mount /dev/md${mdstart}$part $mntpoint +chmod 777 $mntpoint + +daemon sh -c "(cd $here/../testcases/swap; ./swap -t 5m -i 20 -h -l 100)" \ + > /dev/null 2>&1 +sleep 1 +su $testuser -c "/tmp/cmp $mntpoint" & + +while kill -0 $! 2>/dev/null; do + umount -f $mntpoint && + mount /dev/md${mdstart}$part $mntpoint + chmod 777 $mntpoint + sleep .1 +done +wait + +while mount | grep $mntpoint | grep -q /dev/md; do + umount $mntpoint || sleep 1 +done +mdconfig -d -u $mdstart + +# tmpfs +mount -t tmpfs tmpfs $mntpoint +chmod 777 $mntpoint + +su $testuser -c "/tmp/cmp $mntpoint" & + +while kill -0 $! 2>/dev/null; do + umount -f $mntpoint && + mount -t tmpfs tmpfs $mntpoint + chmod 777 $mntpoint + sleep .1 +done +pkill -9 swap +wait + +while pkill -9 swap; do + : +done > /dev/null 2>&1 +while mount | grep $mntpoint | grep -q tmpfs; do + umount $mntpoint || sleep 1 +done +rm -f /tmp/cmp +exit 0 +EOF +#include <sys/param.h> +#include <sys/stat.h> +#include <sys/wait.h> + +#include <err.h> +#include <errno.h> +#include <fcntl.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +#define LOOPS 160 +#define PARALLEL 16 + +int nbc, nbd; +char *dir; + +void +tmkdir(void) +{ + int i, j; + char d[MAXPATHLEN + 1], name[MAXPATHLEN + 1]; + + setproctitle(__func__); + + i = 0; + snprintf(name, sizeof(name), "%s/d1.%05d", dir, getpid()); + if (mkdir(name, 0755) == -1) { + if (errno != ENAMETOOLONG && errno != ENOENT && + errno != EBUSY && errno != EACCES && errno != EPERM) + warn("mkdir(%s)", name); + _exit(0); + } + for (;;) { + snprintf(d, sizeof(d), "/%d", i++); + strncat(name, d, sizeof(name) - 1); + if (mkdir(name, 0755) == -1) { + if (errno != ENAMETOOLONG && errno != ENOENT && + errno != EBUSY && errno != EACCES && errno != EPERM) + warn("mkdir(%s)", name); + i--; + break; + } + nbc++; + } + + while (i >= 0) { + snprintf(name, sizeof(name), "%s/d1.%05d", dir, getpid()); + for (j = 0; j < i; j++) { + snprintf(d, sizeof(d), "/%d", j); + strncat(name, d, sizeof(name) - 1); + } + if (rmdir(name) == -1) { + if (errno != ENOTEMPTY && errno != ENOENT && errno != + EBUSY) + warn("rmdir(%s)", name); + } else + nbd++; + i--; + } +#if defined(TEST) + if (nbc == 0) + fprintf(stderr, "FAIL nbc = %d, nbd = %d\n", nbc, nbd); +#endif + _exit(0); +} + +int +main(int argc, char **argv) +{ + int i, j; + + if (argc != 2) + errx(1, "Usage: %s <fill path to dir>", argv[0]); + dir = argv[1]; + + for (j = 0; j < LOOPS; j++) { + for (i = 0; i < PARALLEL; i++) { + if (fork() == 0) + tmkdir(); + } + for (i = 0; i < PARALLEL; i++) + wait(NULL); + } + + return(0); +}
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