Date: Tue, 6 Aug 2013 06:04:55 +0000 (UTC) From: Peter Holm <pho@FreeBSD.org> To: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: svn commit: r253982 - user/pho/stress2/misc Message-ID: <201308060604.r7664t2q072071@svn.freebsd.org>
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Author: pho Date: Tue Aug 6 06:04:55 2013 New Revision: 253982 URL: http://svnweb.freebsd.org/changeset/base/253982 Log: tmpfs(5) regression test added. Sponsored by: EMC / Isilon storage division Added: user/pho/stress2/misc/tmpfs10.sh (contents, props changed) Added: user/pho/stress2/misc/tmpfs10.sh ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ user/pho/stress2/misc/tmpfs10.sh Tue Aug 6 06:04:55 2013 (r253982) @@ -0,0 +1,157 @@ +#!/bin/sh + +# +# Copyright (c) 2013 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. +# +# $FreeBSD$ +# + +# tmpfs(5) name lookup problem seen: + +# $ ./tmpfs10.sh +# tmpfs10: unlink(p01193.14729) at loop #2: No such file or directory +# unlink(p01193.14729) succeeded at call #2. +# tmpfs10: unlink(p01186.14409) at loop #2: No such file or directory +# unlink(p01186.14409) succeeded at call #2. +# FAIL +# $ + +# Fixed in r253967. + +[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 + +. ../default.cfg + +odir=`pwd` +cd /tmp +sed '1,/^EOF/d' < $odir/$0 > tmpfs10.c +cc -o tmpfs10 -Wall -Wextra -O2 -g tmpfs10.c || exit 1 +rm -f tmpfs10.c +cd $odir + +mount | grep -q "on $mntpoint " && umount $mntpoint +mount -t tmpfs tmpfs $mntpoint +cd $mntpoint +/tmp/tmpfs10 || +{ find $mntpoint ! -type d | xargs ls -il; echo FAIL; } +cd $odir +umount $mntpoint +rm -f /tmp/tmpfs10 +exit 0 +EOF +#include <err.h> +#include <errno.h> +#include <fcntl.h> +#include <stdio.h> +#include <stdlib.h> +#include <sys/param.h> +#include <sys/stat.h> +#include <sys/wait.h> +#include <unistd.h> + +static int loop; +int error; + +#define PARALLEL 20 +#define SIZE 16000 + +void +test2(void) +{ + int i, j, k; + pid_t pid; + char file[128], dir[128]; + + loop++; + pid = getpid(); + sprintf(dir,"%s.%05d", getprogname(), pid); + if (mkdir(dir, 0770) < 0) + err(1, "mkdir(%s), %s:%d", dir, __FILE__, __LINE__); + + if (chdir(dir) == -1) + err(1, "chdir(%s), %s:%d", dir, __FILE__, __LINE__); + + for (j = 0; j < SIZE; j++) { + sprintf(file,"p%05d.%05d", pid, j); + if (symlink("/tmp/not/there", file) == -1) { + if (errno != EINTR) { + warn("symlink(%s). %s.%d", file, __FILE__, __LINE__); + break; + } + } + } + + for (i = --j; i >= 0; i--) { + sprintf(file,"p%05d.%05d", pid, i); + if (unlink(file) == -1) { + warn("unlink(%s) at loop #%d", file, loop); + error++; + for (k = 0; k < 10; k++) { + usleep(10000); + if (unlink(file) == 0) { + fprintf(stderr, + "unlink(%s) succeeded at call #%d.\n", + file, k + 2); + break; + } + } + } + } + + (void)chdir(".."); + if (rmdir(dir) == -1) + warn("rmdir(%s), %s:%d", dir, __FILE__, __LINE__); + +} + +void +test(void) +{ + sleep(arc4random() % 3 + 1); + + test2(); + if (error == 0) + test2(); + + _exit(error); +} + +int +main(void) +{ + int e, i, status; + + for (i = 0; i < PARALLEL; i++) + if (fork() == 0) + test(); + + e = 0; + for (i = 0; i < PARALLEL; i++) { + wait(&status); + e += WEXITSTATUS(status); + } + + return (e); +}
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