Date: Tue, 5 Jan 2016 14:54:10 +0000 (UTC) From: Peter Holm <pho@FreeBSD.org> To: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: svn commit: r293198 - user/pho/stress2/misc Message-ID: <201601051454.u05EsAYZ060061@repo.freebsd.org>
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Author: pho Date: Tue Jan 5 14:54:10 2016 New Revision: 293198 URL: https://svnweb.freebsd.org/changeset/base/293198 Log: Added a regression test. Sponsored by: EMC / Isilon storage division Added: user/pho/stress2/misc/posix_fadvise3.sh (contents, props changed) Added: user/pho/stress2/misc/posix_fadvise3.sh ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ user/pho/stress2/misc/posix_fadvise3.sh Tue Jan 5 14:54:10 2016 (r293198) @@ -0,0 +1,119 @@ +#!/bin/sh + +# +# Copyright (c) 2016 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. +# +# $FreeBSD$ +# + +# Looping thread seen: +# https://people.freebsd.org/~pho/stress/log/kostik855.txt +# Fixed by r293197. + +. ../default.cfg + +odir=`pwd` +cd /tmp +sed '1,/^EOF/d' < $odir/$0 > posix_fadvise3.c +mycc -o posix_fadvise3 -Wall -Wextra -O2 -g posix_fadvise3.c + +data=/tmp/posix_fadvise3.data +dd if=/dev/zero of=$data bs=1m count=64 2>&1 | \ + egrep -v 'records|transferred' +/tmp/posix_fadvise3 + +rm $data +truncate -s 64m $data +/tmp/posix_fadvise3 + +rm -f /tmp/posix_fadvise3 posix_fadvise3.c $data +exit +EOF +#include <err.h> +#include <fcntl.h> +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> + +#define LOOPS 10000 +#define N (128 * 1024 / (int)sizeof(u_int32_t)) + +u_int32_t r[N]; + +unsigned long +makearg(void) +{ + unsigned int i; + unsigned long val; + + val = arc4random(); + i = arc4random() % 100; + if (i < 20) + val = val & 0xff; + if (i >= 20 && i < 40) + val = val & 0xffff; + if (i >= 40 && i < 60) + val = (unsigned long)(r) | (val & 0xffff); +#if defined(__LP64__) + if (i >= 60) { + val = (val << 32) | arc4random(); + if (i > 80) + val = val & 0x00007fffffffffffUL; + } +#endif + + return(val); +} + +int +main(void) +{ + off_t len, offset; + int advise, fd, i, j; + + if ((fd = open("/tmp/posix_fadvise3.data", O_RDONLY)) == -1) + err(1, "open()"); + offset = 0; + len = 0x7fffffffffffffff; + advise = 4; + if (posix_fadvise(fd, offset, len, advise) == -1) + warn("posix_fadvise"); + close(fd); + + for (i = 0; i < LOOPS; i++) { + for (j = 0; j < N; j++) + r[j] = arc4random(); + if ((fd = open("/tmp/posix_fadvise3.data", O_RDONLY)) == -1) + err(1, "open()"); + offset = makearg(); + len = makearg(); + advise = arc4random() % 6; + if (posix_fadvise(fd, offset, len, advise) == -1) + warn("posix_fadvise"); + close(fd); + } + + return (0); +}
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