svn commit: r313545 - user/pho/stress2/misc
Peter Holm
pho at FreeBSD.org
Fri Feb 10 11:15:14 UTC 2017
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);
+}
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