svn commit: r340667 - user/pho/stress2/misc

[Peter Holm]

Author: pho
Date: Tue Nov 20 09:35:37 2018
New Revision: 340667
URL: https://svnweb.freebsd.org/changeset/base/340667

Log:
  Added a kevent(2) test scenario.
  
  Submitted by:	Mark Johnston <markj at freebsd.org>
  Sponsored by:	Dell EMC Isilon

Added:
  user/pho/stress2/misc/kevent14.sh   (contents, props changed)

Added: user/pho/stress2/misc/kevent14.sh
==============================================================================
--- /dev/null	00:00:00 1970	(empty, because file is newly added)
+++ user/pho/stress2/misc/kevent14.sh	Tue Nov 20 09:35:37 2018	(r340667)
@@ -0,0 +1,77 @@
+#!/bin/sh
+
+#
+# SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+#
+# Copyright (c) 2018 Dell EMC Isilon
+#
+# 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.
+#
+# $FreeBSD$
+#
+# "panic: Bad tailq NEXT(0xfffff815a589e238->tqh_last) != NULL" seen.
+# https://people.freebsd.org/~pho/stress/log/kevent14.txt
+
+# Test scenario by: Mark Johnston <markj at freebsd.org>
+
+cat > /tmp/kevent14.c <<EOF
+#include <sys/event.h>
+
+#include <err.h>
+#include <time.h>
+#include <stdlib.h>
+
+int
+main(void)
+{
+	struct kevent ev[2];
+	time_t start;
+	int kq, ret;
+
+	kq = kqueue();
+	if (kq < 0)
+		err(1, "kqueue");
+
+	EV_SET(&ev[0], 42, EVFILT_TIMER, EV_ADD | EV_ENABLE | EV_ONESHOT, 0,
+	    0, 0);
+
+	start = time(NULL);
+	while (time(NULL) - start < 120) {
+		ret = kevent(kq, &ev[0], 1, &ev[1], 1, NULL);
+		if (ret < 0)
+			err(1, "kevent");
+		if (ret == 0)
+			errx(1, "no events");
+		if (ret == 1 && (ev[1].flags & EV_ERROR) != 0)
+			errc(1, ev[1].data, "kevent");
+	}
+
+	return (0);
+}
+EOF
+cc -o /tmp/kevent14 -Wall -Wextra -g -O2 /tmp/kevent14.c
+rm /tmp/kevent14.c
+
+/tmp/kevent14
+
+rm -f /tmp/kevent14
+exit 0