Date: Thu, 19 Sep 2013 07:39:08 +0000 (UTC) From: Peter Holm <pho@FreeBSD.org> To: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: svn commit: r255697 - user/pho/stress2/misc Message-ID: <201309190739.r8J7d8w3094184@svn.freebsd.org>
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Author: pho Date: Thu Sep 19 07:39:08 2013 New Revision: 255697 URL: http://svnweb.freebsd.org/changeset/base/255697 Log: Added msync(2) regression test. Sponsored by: EMC / Isilon storage division Added: user/pho/stress2/misc/msync2.sh (contents, props changed) Added: user/pho/stress2/misc/msync2.sh ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ user/pho/stress2/misc/msync2.sh Thu Sep 19 07:39:08 2013 (r255697) @@ -0,0 +1,126 @@ +#!/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. +# +# $FreeBSD$ +# + +# "panic: vm_pageout_flush: partially invalid page xx index 0/1" seen. +# Fixed in r255566. + +dir=/tmp +odir=`pwd` +cd $dir +sed '1,/^EOF/d' < $odir/$0 > $dir/msync2.c +cc -o msync2 -Wall -Wextra msync2.c || exit 1 +rm -f msync2.c +cd $odir + +dd if=/dev/zero bs=$((4096 + 1)) of=/tmp/msync2.inputfile count=1 2>&1 | + egrep -v "records|transferred" +/tmp/msync2 /tmp/msync2.inputfile +rm -f /tmp/msync2 /tmp/msync2.inputfile +exit + +EOF +#include <err.h> +#include <errno.h> +#include <stdlib.h> +#include <sys/fcntl.h> +#include <sys/mman.h> +#include <sys/param.h> +#include <sys/stat.h> +#include <sys/types.h> +#include <sys/wait.h> +#include <unistd.h> + +const char *file; +char c; + +void +wr(void) +{ + struct stat st; + char *p1; + size_t len; + int error, fd; + + if ((fd = open(file, O_RDWR)) == -1) + err(1, "open %s", file); + if ((error = fstat(fd, &st)) == -1) + err(1, "stat(%s)", file); + len = round_page(st.st_size); + if ((p1 = mmap(NULL, len, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0)) == MAP_FAILED) + err(1, "mmap"); +// p1[len - 1] = 1; /* No panic with this */ + p1[arc4random() % len] = 1; /* Need this for the panic */ + + if ((error = msync(p1, len, MS_SYNC | MS_INVALIDATE)) == -1) + if (errno != EBUSY) + err(1, "msync"); + + if (munmap(p1, len) == -1) + err(1, "unmap()"); + close(fd); + + _exit(0); +} + +void +test(void) +{ +#if 1 + int i; + + for (i = 0; i < 3; i++) + if (fork() == 0) + wr(); + for (i = 0; i < 3; i++) + wait(NULL); +#else + wr(); /* No problem here */ +#endif + + _exit(0); +} + +int +main(int argc, char *argv[]) +{ + int i; + + if (argc != 2) + errx(1, "Usage: %s <file>", argv[0]); + file = argv[1]; + + for (i = 0; i < 30000; i++) { + if (fork() == 0) + test(); + wait(NULL); + } + + return (0); +}
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