Date: Mon, 11 Aug 2014 07:04:09 +0000 (UTC) From: Peter Holm <pho@FreeBSD.org> To: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: svn commit: r269804 - user/pho/stress2/misc Message-ID: <53e86ae9.2bf7.3225afae@svn.freebsd.org>
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Author: pho Date: Mon Aug 11 07:04:08 2014 New Revision: 269804 URL: http://svnweb.freebsd.org/changeset/base/269804 Log: Let procfs.sh be less verbose and added two procfs scenarios. Sponsored by: EMC / Isilon storage division Added: user/pho/stress2/misc/procfs3.sh (contents, props changed) user/pho/stress2/misc/procfs4.sh (contents, props changed) Modified: user/pho/stress2/misc/procfs.sh Modified: user/pho/stress2/misc/procfs.sh ============================================================================== --- user/pho/stress2/misc/procfs.sh Mon Aug 11 07:01:29 2014 (r269803) +++ user/pho/stress2/misc/procfs.sh Mon Aug 11 07:04:08 2014 (r269804) @@ -47,7 +47,7 @@ if [ $# -eq 0 ]; then for i in `jot $mounts`; do m=$(( i + mdstart - 1 )) ./$0 $m & - ./$0 find $m & + ./$0 find $m > /dev/null 2>&1 & done for i in `jot $mounts`; do Added: user/pho/stress2/misc/procfs3.sh ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ user/pho/stress2/misc/procfs3.sh Mon Aug 11 07:04:08 2014 (r269804) @@ -0,0 +1,152 @@ +#!/bin/sh + +# +# Copyright (c) 2012 Peter Holm <pho@FreeBSD.org> +# 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. +# +# $FreeBSD$ +# + +# procfs(5) test scenario. +# "panic: wchan 0xc10a4f68 has no wmesg" seen + +[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 + +. ../default.cfg + +here=`pwd` +cd /tmp +sed '1,/^EOF/d' < $here/$0 > procfs3.c +cc -o procfs3 -Wall -Wextra -O2 procfs3.c || exit 1 +rm -f procfs3.c +cd $here + +su $testuser -c /tmp/procfs3 + +rm -f /tmp/procfs3 +exit 0 +EOF +#include <sys/param.h> +#include <err.h> +#include <errno.h> +#include <fcntl.h> +#include <fts.h> +#include <libutil.h> +#include <signal.h> +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/param.h> +#include <sys/stat.h> +#include <sys/types.h> +#include <sys/wait.h> +#include <unistd.h> + +#define PARALLEL 10 + +void +handler(int i __unused) +{ +} + +int +test(void) +{ + + FTS *fts; + FTSENT *p; + int ftsoptions; + char *args[2]; + int fd, i; + char buf[1629]; + + ftsoptions = FTS_PHYSICAL; + args[0] = "/proc"; + args[1] = 0; + + if ((fts = fts_open(args, ftsoptions, NULL)) == NULL) + err(1, "fts_open"); + + while ((p = fts_read(fts)) != NULL) { + switch (p->fts_info) { + case FTS_F: /* Ignore. */ + break; + case FTS_D: /* Ignore. */ + continue; + case FTS_DP: + continue; + case FTS_DC: /* Ignore. */ + continue; + case FTS_SL: /* Ignore. */ + continue; + case FTS_DNR: /* Warn, continue. */ + case FTS_ERR: + case FTS_NS: + case FTS_DEFAULT: + warnx("%s: %s", p->fts_path, strerror(p->fts_errno)); + break; + default: + printf("%s: default, %d\n", getprogname(), p->fts_info); + break; + } + + if ((fd = open(p->fts_path, O_RDONLY)) == -1) + continue; + signal(SIGALRM, handler); + alarm(1); + + for (i = 0; i < 2; i++) { + read(fd, buf, 1629); + } + close(fd); + } + + if (errno != 0 && errno != ENOENT) + err(1, "fts_read"); + if (fts_close(fts) == -1) + err(1, "fts_close()"); + + return (0); +} + +int +main(void) +{ + int i, j; + + for (i = 0; i < PARALLEL; i++) { + if (fork() == 0) { + for (j = 0; j < 50; j++) { + test(); + } + _exit(0); + } + } + + for (i = 0; i < PARALLEL; i++) + wait(NULL); + + return (0); +} Added: user/pho/stress2/misc/procfs4.sh ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ user/pho/stress2/misc/procfs4.sh Mon Aug 11 07:04:08 2014 (r269804) @@ -0,0 +1,146 @@ +#!/bin/sh + +# +# Copyright (c) 2012 Peter Holm <pho@FreeBSD.org> +# 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 scenario idea by kib@ + +# "panic: double fault" seen due to recurtion + +[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 + +. ../default.cfg + +mount | grep -q procfs || mount -t procfs procfs /proc +here=`pwd` +cd /tmp +sed '1,/^EOF/d' < $here/$0 > procfs4.c +cc -o procfs4 -Wall -Wextra -O2 procfs4.c +rm -f procfs4.c +cd $here + +su $testuser -c /tmp/procfs4 + +rm -f /tmp/procfs4 +exit 0 +EOF +#include <sys/param.h> +#include <err.h> +#include <errno.h> +#include <fcntl.h> +#include <signal.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/ioctl.h> +#include <sys/param.h> +#include <sys/types.h> +#include <sys/wait.h> +#include <unistd.h> + +#define PARALLEL 10 +#define LOOPS 1000 + +char *files[] = { + "cmdline", + "ctl", + "dbregs", + "etype", + "file", + "fpregs", + "map", + "mem", + "note", + "notepg", + "osrel", + "regs", + "rlimit", + "status" +}; + +void +test(void) +{ + pid_t p; + int fd, i, j, n, opens; + char path[128]; + + for (i = 0; i < 64; i++) { + if ((p = fork()) == 0) { + setproctitle("Sleeper"); + usleep(20000); + usleep(arc4random() % 200); + for (j = 0; j < 10000; j++) + getpid(); + _exit(0); + } + opens = 0; + setproctitle("load"); + for (j = 0; j < 14; j++) { + snprintf(path, sizeof(path), "/proc/%d/%s", p, files[j]); + if ((fd = open(path, O_RDWR)) == -1) + if ((fd = open(path, O_RDONLY)) == -1) + continue; + + ioctl(fd, FIONREAD, &n); + if (ioctl(fd, FIONBIO, &n) != -1) + opens++; + + close(fd); + } + kill(p, SIGHUP); +#if 0 + if (opens < 1) + fprintf(stderr, "Warn %d open(s) for pid %d\n", opens, getpid()); +#endif + } + + for (i = 0; i < 64; i++) + wait(NULL); + + _exit(0); +} + +int +main(void) +{ + int i, j; + + for (i = 0; i < LOOPS; i++) { + for (j = 0; j < PARALLEL; j++) { + if (fork() == 0) + test(); + } + + for (j = 0; j < PARALLEL; j++) + wait(NULL); + usleep(10000); + } + + return (0); +}
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