Date: Tue, 20 Nov 2018 09:34:04 +0000 (UTC) From: Peter Holm <pho@FreeBSD.org> To: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: svn commit: r340666 - user/pho/stress2/misc Message-ID: <201811200934.wAK9Y4XH068806@repo.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: pho Date: Tue Nov 20 09:34:03 2018 New Revision: 340666 URL: https://svnweb.freebsd.org/changeset/base/340666 Log: Added a kevent(2) / pipe(2) test scenario. Sponsored by: Dell EMC Isilon Added: user/pho/stress2/misc/kevent13.sh (contents, props changed) Added: user/pho/stress2/misc/kevent13.sh ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ user/pho/stress2/misc/kevent13.sh Tue Nov 20 09:34:03 2018 (r340666) @@ -0,0 +1,134 @@ +#!/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. +# +# $FreeBSD$ +# + +# Test based on scenario by Babcia Padlina + +# "panic: mutex pipe mutex not owned at sys_pipe.c:1769" seen: +# https://people.freebsd.org/~pho/stress/log/kevent13.txt + +. ../default.cfg + +odir=`pwd` +cd /tmp +sed '1,/^EOF/d' < $odir/$0 > kevent13.c +cc -o kevent13 -Wall kevent13.c -lpthread +rm -f kevent13.c + +[ -d "$RUNDIR" ] || mkdir -p $RUNDIR +cd $RUNDIR +for i in `jot 10`; do + /tmp/kevent13 & + /tmp/kevent13 & + wait +done + +rm -f /tmp/kevent13 +exit 0 +EOF +/* + * 29.08.2009, babcia padlina + */ + +#include <sys/types.h> +#include <sys/event.h> +#include <sys/param.h> +#include <sys/timespec.h> +#include <unistd.h> + +#include <err.h> +#include <fcntl.h> +#include <pthread.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#define LOOPS 200000 + +struct kevent kev, ke[2]; +struct timespec timeout; +volatile int go; +int fd[2], kq; + +void +do_thread(void) { + int i; + + go = 1; + for (i = 0; i < LOOPS; i++) { + if (pipe(fd) < 0) + err(1, "pipe"); + memset(&kev, 0, sizeof(kev)); + EV_SET(&kev, fd[0], EVFILT_READ, EV_ADD | EV_CLEAR, 0, 0, NULL); + EV_SET(&kev, fd[1], EVFILT_WRITE, EV_ADD | EV_CLEAR, 0, 0, NULL); + + if (kevent(kq, &kev, 2, &ke[0], 2, &timeout) < 0) + err(1, "kevent"); + + close(fd[0]); + close(fd[1]); + } +} + +void +do_thread2(void) { + int i; + + while (go == 0) + usleep(10); + for (i = 0; i < LOOPS; i++) { + close(fd[0]); + close(fd[1]); + } +} + +int +main(void) { + pthread_t pth, pth2; + int r; + + if ((kq = kqueue()) < 0) + err(1, "kqueue"); + + if ((r = pthread_create(&pth, NULL, (void *)do_thread, NULL)) != 0) + errc(1, r, "pthread_create"); + if ((r = pthread_create(&pth2, NULL, (void *)do_thread2, NULL)) != 0) + errc(1, r, "pthread_create"); + + timeout.tv_sec = 0; + timeout.tv_nsec = 1; + + if ((r = pthread_join(pth, NULL)) != 0) + errc(1, r, "pthread_join"); + if ((r = pthread_join(pth2, NULL)) != 0) + errc(1, r, "pthread_join"); + + return (0); +}
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201811200934.wAK9Y4XH068806>