Date: Fri, 10 Feb 2017 11:15:13 +0000 (UTC) From: Peter Holm <pho@FreeBSD.org> To: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: svn commit: r313545 - user/pho/stress2/misc Message-ID: <201702101115.v1ABFDmM018198@repo.freebsd.org>
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Author: pho Date: Fri Feb 10 11:15:12 2017 New Revision: 313545 URL: https://svnweb.freebsd.org/changeset/base/313545 Log: Added two regression tests. Sponsored by: Dell EMC Isilon Added: user/pho/stress2/misc/dev3.sh (contents, props changed) user/pho/stress2/misc/pts2.sh (contents, props changed) Added: user/pho/stress2/misc/dev3.sh ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ user/pho/stress2/misc/dev3.sh Fri Feb 10 11:15:12 2017 (r313545) @@ -0,0 +1,162 @@ +#!/bin/sh + +# +# Copyright (c) 2017 Dell EMC Isilon +# 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. +# +# $FreeBSD$ +# + +# pts memory leak regression test. + +# Leaks seen when flags is either O_SHLOCK or O_EXLOCK and /dev/ptmx and +# /dev/pts/ is being opened. +# Fixed in r313496. + +[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 + +. ../default.cfg + +kldstat -v | grep -q pty || { kldload pty || exit 0; } +here=`pwd` +cd /tmp +sed '1,/^EOF/d' < $here/$0 > dev3.c +mycc -o dev3 -Wall -Wextra -O2 dev3.c || exit 1 +rm -f dev3.c + +#(cd $here/../testcases/swap; ./swap -t 10h -i 20 -l 100) > \ +# /dev/null & + +pts=`vmstat -m | grep pts | awk '{print $2}'` +[ -z "$pts" ] && pts=0 + +e=0 +n=0 +while true; do + su $testuser -c "/tmp/dev3 $n" + new=`vmstat -m | grep pts | awk '{print $2}'` + if [ $new -gt $pts ]; then + leak=$((new - pts)) + printf "flag %d (0x%x) leaks %d pts, %d allocated.\n" $n $n \ + $leak $new + pts=$new + e=1 + fi + [ $n -eq 0 ] && n=1 || n=$((n * 2)) + [ $n -gt $((0x00200000)) ] && break # O_VERIFY +done +while pkill -9 swap; do + sleep 1 +done +wait +rm -f /tmp/dev3 +exit $e +EOF +#include <sys/types.h> +#include <sys/wait.h> + +#include <err.h> +#include <errno.h> +#include <fcntl.h> +#include <fts.h> +#include <setjmp.h> +#include <signal.h> +#include <stdio.h> +#include <stdlib.h> +#include <time.h> +#include <unistd.h> + +#define PARALLEL 4 +#define RUNTIME 60 + +jmp_buf jbuf; +char path[80]; + +void +handler(int i __unused) { + longjmp(jbuf, 1); +} + +void +churn(int flag, char *path) +{ + FTS *fts; + FTSENT *p; + time_t start; + int fd, ftsoptions; + char *args[2]; + + ftsoptions = FTS_PHYSICAL; + args[0] = path; + args[1] = 0; + + start = time(NULL); + while (time(NULL) - start < RUNTIME) { + if ((fts = fts_open(args, ftsoptions, NULL)) == NULL) + err(1, "fts_open"); + + (void)setjmp(jbuf); + ualarm(0, 0); + while ((p = fts_read(fts)) != NULL) { + if (p->fts_info == FTS_D || + p->fts_info == FTS_DP) + continue; + ualarm(500000, 0); + if ((fd = open(p->fts_path, flag)) == -1) + continue; + ualarm(0, 0); + usleep(arc4random() % 1000); + close(fd); + + } + + if (errno != 0 && errno != ENOENT) + warn("fts_read"); + if (fts_close(fts) == -1) + err(1, "fts_close()"); + } + + _exit(0); +} + +int +main(int argc, char *argv[]) +{ + int flag, i; + + if (argc != 2) { + fprintf(stderr, "Usage: %s <flag>\n", argv[0]); + exit(1); + } + flag = atoi(argv[1]); + signal(SIGALRM, handler); + for (i = 0; i < PARALLEL; i++) + if (fork() == 0) + churn(flag, "/dev"); + + for (i = 0; i < PARALLEL; i++) + wait(NULL); + + return (0); +} Added: user/pho/stress2/misc/pts2.sh ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ user/pho/stress2/misc/pts2.sh Fri Feb 10 11:15:12 2017 (r313545) @@ -0,0 +1,81 @@ +#!/bin/sh + +# +# Copyright (c) 2017 Dell EMC Isilon +# 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. +# +# $FreeBSD$ +# + +# pts leak seen. +# Fixed in r313496. + +[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 +kldstat -v | grep -q pty || { kldload pty || exit 0; } + +. ../default.cfg + +here=`pwd` +cd /tmp +sed '1,/^EOF/d' < $here/$0 > pts2.c +mycc -o pts2 -Wall -Wextra -O2 pts2.c || exit 1 +rm -f pts2.c + +pts=`vmstat -m | grep pts | awk '{print $2}'` +for i in `jot 10`; do + /tmp/pts2 +done +new=`vmstat -m | grep pts | awk '{print $2}'` +s=0 +[ $((new - pts)) -gt 1 ] && { s=1; echo "Leaked $((new - pts)) pts."; } + +rm -f /tmp/pts2 +exit $s +EOF +#include <sys/ioctl.h> + +#include <err.h> +#include <fcntl.h> +#include <stdio.h> + +const char *master = "/dev/ptmx"; +int +main(void) +{ + int fd, fd2, slave; + char sl[80]; + + if ((fd = open(master, O_RDONLY)) == -1) + err(1, "open(%s)", master); + + if (ioctl(fd, TIOCGPTN, &slave) == -1) + err(1, "ioctl"); + + snprintf(sl, sizeof(sl), "/dev/pts/%d", slave); + + if ((fd2 = open(sl, O_RDONLY | O_EXLOCK)) == -1) + err(1, "open(%s)", sl); + + return (0); +}help
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