18a272653SPeter Holm#!/bin/sh 28a272653SPeter Holm 38a272653SPeter Holm# 44d846d26SWarner Losh# SPDX-License-Identifier: BSD-2-Clause 58a272653SPeter Holm# 68a272653SPeter Holm# Copyright (c) 2018 Dell EMC Isilon 78a272653SPeter Holm# 88a272653SPeter Holm# Redistribution and use in source and binary forms, with or without 98a272653SPeter Holm# modification, are permitted provided that the following conditions 108a272653SPeter Holm# are met: 118a272653SPeter Holm# 1. Redistributions of source code must retain the above copyright 128a272653SPeter Holm# notice, this list of conditions and the following disclaimer. 138a272653SPeter Holm# 2. Redistributions in binary form must reproduce the above copyright 148a272653SPeter Holm# notice, this list of conditions and the following disclaimer in the 158a272653SPeter Holm# documentation and/or other materials provided with the distribution. 168a272653SPeter Holm# 178a272653SPeter Holm# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 188a272653SPeter Holm# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 198a272653SPeter Holm# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 208a272653SPeter Holm# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 218a272653SPeter Holm# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 228a272653SPeter Holm# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 238a272653SPeter Holm# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 248a272653SPeter Holm# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 258a272653SPeter Holm# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 268a272653SPeter Holm# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 278a272653SPeter Holm# SUCH DAMAGE. 288a272653SPeter Holm# 298a272653SPeter Holm 308a272653SPeter Holm# Test based on scenario by Babcia Padlina 318a272653SPeter Holm 328a272653SPeter Holm# "panic: mutex pipe mutex not owned at sys_pipe.c:1769" seen: 338a272653SPeter Holm# https://people.freebsd.org/~pho/stress/log/kevent13.txt 348a272653SPeter Holm# Fixed by r235640. 358a272653SPeter Holm 368a272653SPeter Holm. ../default.cfg 378a272653SPeter Holm 388a272653SPeter Holmodir=`pwd` 398a272653SPeter Holmcd /tmp 408a272653SPeter Holmsed '1,/^EOF/d' < $odir/$0 > kevent13.c 418a272653SPeter Holmcc -o kevent13 -Wall kevent13.c -lpthread 428a272653SPeter Holmrm -f kevent13.c 438a272653SPeter Holm 448a272653SPeter Holm[ -d "$RUNDIR" ] || mkdir -p $RUNDIR 458a272653SPeter Holmcd $RUNDIR 468a272653SPeter Holmstart=`date +%s` 478a272653SPeter Holmwhile [ $((`date +%s` - start)) -lt 300 ]; do 488a272653SPeter Holm for i in `jot 10`; do 498a272653SPeter Holm /tmp/kevent13 & 508a272653SPeter Holm /tmp/kevent13 & 518a272653SPeter Holm wait 528a272653SPeter Holm done 538a272653SPeter Holmdone 548a272653SPeter Holm 558a272653SPeter Holmrm -f /tmp/kevent13 568a272653SPeter Holmexit 0 578a272653SPeter HolmEOF 588a272653SPeter Holm/* 598a272653SPeter Holm * 29.08.2009, babcia padlina 608a272653SPeter Holm */ 618a272653SPeter Holm 628a272653SPeter Holm#include <sys/types.h> 638a272653SPeter Holm#include <sys/event.h> 648a272653SPeter Holm#include <sys/param.h> 658a272653SPeter Holm#include <sys/timespec.h> 668a272653SPeter Holm#include <unistd.h> 678a272653SPeter Holm 688a272653SPeter Holm#include <err.h> 698a272653SPeter Holm#include <fcntl.h> 708a272653SPeter Holm#include <pthread.h> 718a272653SPeter Holm#include <stdio.h> 728a272653SPeter Holm#include <stdlib.h> 738a272653SPeter Holm#include <string.h> 748a272653SPeter Holm 758a272653SPeter Holm#define LOOPS 200000 768a272653SPeter Holm 778a272653SPeter Holmstruct kevent kev[2], ke[2]; 788a272653SPeter Holmstruct timespec timeout; 798a272653SPeter Holmvolatile int go; 808a272653SPeter Holmint fd[2], kq; 818a272653SPeter Holm 828a272653SPeter Holmvoid 838a272653SPeter Holmdo_thread(void) { 848a272653SPeter Holm int i; 858a272653SPeter Holm 868a272653SPeter Holm go = 1; 878a272653SPeter Holm for (i = 0; i < LOOPS; i++) { 888a272653SPeter Holm if (pipe(fd) < 0) 898a272653SPeter Holm err(1, "pipe"); 908a272653SPeter Holm memset(&kev, 0, sizeof(kev)); 918a272653SPeter Holm EV_SET(&kev[0], fd[0], EVFILT_READ, EV_ADD | EV_CLEAR, 0, 0, NULL); 928a272653SPeter Holm EV_SET(&kev[1], fd[1], EVFILT_WRITE, EV_ADD | EV_CLEAR, 0, 0, NULL); 938a272653SPeter Holm 948a272653SPeter Holm if (kevent(kq, kev, 2, ke, 2, &timeout) < 0) 958a272653SPeter Holm err(1, "kevent"); 968a272653SPeter Holm 978a272653SPeter Holm close(fd[0]); 988a272653SPeter Holm close(fd[1]); 998a272653SPeter Holm } 1008a272653SPeter Holm} 1018a272653SPeter Holm 1028a272653SPeter Holmvoid 1038a272653SPeter Holmdo_thread2(void) { 1048a272653SPeter Holm int i; 1058a272653SPeter Holm 1068a272653SPeter Holm while (go == 0) 1078a272653SPeter Holm usleep(10); 1088a272653SPeter Holm for (i = 0; i < LOOPS; i++) { 1098a272653SPeter Holm if (arc4random() % 2 == 0) { 1108a272653SPeter Holm close(fd[0]); 1118a272653SPeter Holm close(fd[1]); 1128a272653SPeter Holm } else { 1138a272653SPeter Holm close(fd[1]); 1148a272653SPeter Holm close(fd[0]); 1158a272653SPeter Holm } 1168a272653SPeter Holm } 1178a272653SPeter Holm} 1188a272653SPeter Holm 1198a272653SPeter Holmint 1208a272653SPeter Holmmain(void) { 1218a272653SPeter Holm pthread_t pth, pth2; 1228a272653SPeter Holm int r; 1238a272653SPeter Holm 1248a272653SPeter Holm if ((kq = kqueue()) < 0) 1258a272653SPeter Holm err(1, "kqueue"); 1268a272653SPeter Holm 1278a272653SPeter Holm if ((r = pthread_create(&pth, NULL, (void *)do_thread, NULL)) != 0) 1288a272653SPeter Holm errc(1, r, "pthread_create"); 1298a272653SPeter Holm if ((r = pthread_create(&pth2, NULL, (void *)do_thread2, NULL)) != 0) 1308a272653SPeter Holm errc(1, r, "pthread_create"); 1318a272653SPeter Holm 1328a272653SPeter Holm timeout.tv_sec = 0; 1338a272653SPeter Holm timeout.tv_nsec = 1; 1348a272653SPeter Holm 1358a272653SPeter Holm if ((r = pthread_join(pth, NULL)) != 0) 1368a272653SPeter Holm errc(1, r, "pthread_join"); 1378a272653SPeter Holm if ((r = pthread_join(pth2, NULL)) != 0) 1388a272653SPeter Holm errc(1, r, "pthread_join"); 1398a272653SPeter Holm 1408a272653SPeter Holm return (0); 1418a272653SPeter Holm} 142