Date: Sat, 24 Oct 2015 15:23:44 +0000 (UTC) From: Peter Holm <pho@FreeBSD.org> To: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: svn commit: r289880 - user/pho/stress2/misc Message-ID: <201510241523.t9OFNiGQ066380@repo.freebsd.org>
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Author: pho Date: Sat Oct 24 15:23:44 2015 New Revision: 289880 URL: https://svnweb.freebsd.org/changeset/base/289880 Log: Added one more Out of VM test scenario. Sponsored by: EMC / Isilon storage division Added: user/pho/stress2/misc/oovm2.sh (contents, props changed) Added: user/pho/stress2/misc/oovm2.sh ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ user/pho/stress2/misc/oovm2.sh Sat Oct 24 15:23:44 2015 (r289880) @@ -0,0 +1,135 @@ +#!/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. +# +# $FreeBSD$ +# + +# Out of VM deadlock seen. Introduced by r285808. Variation of oovm.sh +# https://people.freebsd.org/~pho/stress/log/oovm2.txt + +# Test scenario suggestion by alc@ + +. ../default.cfg + +[ `swapinfo | wc -l` -eq 1 ] && exit 0 +size=$((`sysctl -n hw.physmem` / 1024 / 1024)) +d1=${diskimage}.1 +d2=${diskimage}.2 +d3=${diskimage}.3 +d4=${diskimage}.4 +rm -f $d1 $d2 $d3 $d4 +[ `df -k $(dirname $diskimage) | tail -1 | awk '{print int($4 / 1024)'}` -lt \ + $size ] && printf "Need %d MB on %s.\n" $size `dirname $diskimage` && exit +dd if=/dev/zero of=$d1 bs=1m count=$((size / 4)) 2>&1 | \ + egrep -v "records|transferred" +cp $d1 $d2 || exit +cp $d1 $d3 || exit +cp $d1 $d4 || exit +trap "rm -f $d1 $d2 $d3 $d4" EXIT INT + +dir=/tmp +odir=`pwd` +cd $dir +sed '1,/^EOF/d' < $odir/$0 > $dir/oovm2.c +mycc -o oovm2 -Wall -Wextra -g oovm2.c || exit 1 +rm -f oovm2.c +cd $odir + +(cd /tmp; /tmp/oovm2 $d1) & +(cd /tmp; /tmp/oovm2 $d2) & +(cd /tmp; /tmp/oovm2 $d3) & +(cd /tmp; /tmp/oovm2 $d4) & +wait + +rm -f /tmp/oovm2 /tmp/oovm2.core +exit + +EOF +#include <sys/param.h> +#include <sys/fcntl.h> +#include <sys/mman.h> +#include <sys/stat.h> + +#include <err.h> +#include <errno.h> +#include <stdio.h> +#include <stdlib.h> +#include <time.h> +#include <unistd.h> + +const char *file; + +#define RUNTIME 600 + +void +test(void) +{ + struct stat st; + size_t i, olen, len; + time_t start; + int error, fd, ps; + char *p; + + ps = getpagesize(); + if ((fd = open(file, O_RDWR)) == -1) + err(1, "open(%s)", file); + if ((error = fstat(fd, &st)) == -1) + err(1, "stat(%s)", file); + len = olen = round_page(st.st_size); + do { + if ((p = mmap(NULL, len, PROT_READ | PROT_WRITE, MAP_SHARED, + fd, 0)) == MAP_FAILED) { + if (errno == ENOMEM) + len -= ps; + else + err(1, "mmap"); + } + } while (p == MAP_FAILED); + + start = time(NULL); + /* Touch all pages of the file. */ + for (i = 0; i < len; i += ps) + p[i] = 1; + while (time(NULL) - start < RUNTIME) + p[arc4random() % len] = 1; + + if (munmap(p, len) == -1) + err(1, "unmap()"); + close(fd); +} + +int +main(int argc, char *argv[]) +{ + if (argc != 2) + errx(1, "Usage: %s <file>", argv[0]); + file = argv[1]; + + test(); + + return (0); +}
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