Date: Mon, 14 Dec 2015 13:26:22 +0000 (UTC) From: Peter Holm <pho@FreeBSD.org> To: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: svn commit: r292208 - user/pho/stress2/misc Message-ID: <201512141326.tBEDQMF5094581@repo.freebsd.org>
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Author: pho Date: Mon Dec 14 13:26:22 2015 New Revision: 292208 URL: https://svnweb.freebsd.org/changeset/base/292208 Log: Added a regression test. Sponsored by: EMC / Isilon storage division Added: user/pho/stress2/misc/md8.sh (contents, props changed) Added: user/pho/stress2/misc/md8.sh ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ user/pho/stress2/misc/md8.sh Mon Dec 14 13:26:22 2015 (r292208) @@ -0,0 +1,126 @@ +#!/bin/sh + +# +# Copyright (c) 2015 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. +# +# $FreeBSD$ +# + +# Test of unmapped unaligned i/o over the vnode-backed md(4) volume. +# "panic: vm_fault: fault on nofault entry, addr: fffffe07f302c000" seen. +# https://people.freebsd.org/~pho/stress/log/md8.txt +# Fixed in r292128. + +# Test scenario by kib@ + +[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 +[ -d /usr/src/sys ] || exit 0 + +. ../default.cfg + +rm -f $diskimage +dir=`dirname $diskimage` +free=`df -k $dir | tail -1 | awk '{print $4}'` +[ $((free / 1024)) -lt 50 ] && echo "Not enough disk space." && exit + +odir=`pwd` +cd /tmp +sed '1,/^EOF/d' < $odir/$0 > md8.c +rm -f /tmp/md8 +mycc -o md8 -Wall -Wextra -g -O2 md8.c || exit 1 +rm -f md8.c + +cc -o /tmp/fstool $odir/../tools/fstool.c || exit 1 +cd $odir + +trap "rm -f $diskimage" EXIT INT +dd if=/dev/zero of=$diskimage bs=1m count=50 2>&1 | \ + egrep -v 'records|transferred' +[ -c /dev/md$mdstart ] && mdconfig -d -u $mdstart +mdconfig -a -t vnode -f $diskimage -u $mdstart + +n=`sysctl -n hw.ncpu` +n=$((n + 1)) +(cd /usr/src; make -j $n buildkernel > /dev/null 2>&1) & +sleep 1 +/tmp/md8 /dev/md$mdstart +kill $! +wait + +mdconfig -d -u $mdstart +rm -rf /tmp/md8 +exit 0 +EOF +#include <sys/param.h> + +#include <err.h> +#include <fcntl.h> +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> + +#define LOOPS 2000 + +void +test(char *path) +{ + int fd; + char data[MAXPHYS + 512] __aligned(PAGE_SIZE); + + if ((fd = open(path, O_RDONLY)) == -1) + err(1, "open(%s)", path); + if (read(fd, data + 512, MAXPHYS) != MAXPHYS) + err(1, "read"); + close(fd); + + if ((fd = open(path, O_WRONLY)) == -1) + err(1, "open(%s)", path); + if (write(fd, data + 512, MAXPHYS) != MAXPHYS) + err(1, "write"); + close(fd); + + if ((fd = open(path, O_RDONLY)) == -1) + err(1, "open(%s)", path); + if (read(fd, data + 512, MAXPHYS) != MAXPHYS) + err(1, "read"); + close(fd); +} + +int +main(int argc, char *argv[]) +{ + int i; + char *path; + + if (argc != 2) + errx(1, "Usage: %s <path>", argv[0]); + + path = argv[1]; + + for (i = 0; i < LOOPS; i++) + test(path); + + return (0); +}
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