18a272653SPeter Holm#!/bin/sh 28a272653SPeter Holm 38a272653SPeter Holm# 48a272653SPeter Holm# Copyright (c) 2013 EMC Corp. 58a272653SPeter Holm# All rights reserved. 68a272653SPeter Holm# 78a272653SPeter Holm# Redistribution and use in source and binary forms, with or without 88a272653SPeter Holm# modification, are permitted provided that the following conditions 98a272653SPeter Holm# are met: 108a272653SPeter Holm# 1. Redistributions of source code must retain the above copyright 118a272653SPeter Holm# notice, this list of conditions and the following disclaimer. 128a272653SPeter Holm# 2. Redistributions in binary form must reproduce the above copyright 138a272653SPeter Holm# notice, this list of conditions and the following disclaimer in the 148a272653SPeter Holm# documentation and/or other materials provided with the distribution. 158a272653SPeter Holm# 168a272653SPeter Holm# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 178a272653SPeter Holm# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 188a272653SPeter Holm# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 198a272653SPeter Holm# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 208a272653SPeter Holm# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 218a272653SPeter Holm# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 228a272653SPeter Holm# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 238a272653SPeter Holm# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 248a272653SPeter Holm# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 258a272653SPeter Holm# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 268a272653SPeter Holm# SUCH DAMAGE. 278a272653SPeter Holm# 288a272653SPeter Holm 298a272653SPeter Holm# "Sleeping thread (tid 101094, pid 13104) owns a non-sleepable lock" seen. 308a272653SPeter Holm# Fixed in r255798. 318a272653SPeter Holm 328a272653SPeter Holm# panic: Memory modified after free: 338a272653SPeter Holm# https://people.freebsd.org/~pho/stress/log/alan011.txt 348a272653SPeter Holm# https://people.freebsd.org/~pho/stress/log/kevent6.txt 358a272653SPeter Holm# Fixed by: r286921 368a272653SPeter Holm 378a272653SPeter Holm[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 388a272653SPeter Holm. ../default.cfg 398a272653SPeter Holm 408a272653SPeter Holmodir=`pwd` 418a272653SPeter Holm 428a272653SPeter Holmcd /tmp 438a272653SPeter Holmsed '1,/^EOF/d' < $odir/$0 > kevent6.c 448a272653SPeter Holmmycc -o kevent6 -Wall -Wextra -O2 -g kevent6.c -lpthread || exit 1 458a272653SPeter Holmrm -f kevent6.c 468a272653SPeter Holmcd $odir 478a272653SPeter Holm 488a272653SPeter Holmmount | grep "on $mntpoint " | grep -q md$mdstart && umount -f $mntpoint 498a272653SPeter Holmmdconfig -l | grep -q $mdstart && mdconfig -d -u $mdstart 508a272653SPeter Holm 518a272653SPeter Holmmdconfig -a -t swap -s 2g -u $mdstart 52608c97bfSPeter Holmnewfs $newfs_flags md$mdstart > /dev/null 53608c97bfSPeter Holmmount /dev/md$mdstart $mntpoint 548a272653SPeter Holmchmod 777 $mntpoint 558a272653SPeter Holm 568a272653SPeter Holmsu $testuser -c "(cd $mntpoint; /tmp/kevent6)" 578a272653SPeter Holm 588a272653SPeter Holmwhile mount | grep -q $mntpoint; do 598a272653SPeter Holm umount $mntpoint || sleep 1 608a272653SPeter Holmdone 618a272653SPeter Holmmdconfig -d -u $mdstart 628a272653SPeter Holm 638a272653SPeter Holmmount -o size=1g -t tmpfs tmpfs $mntpoint 648a272653SPeter Holmchmod 777 $mntpoint 658a272653SPeter Holmsu $testuser -c "(cd $mntpoint; /tmp/kevent6)" 668a272653SPeter Holmwhile mount | grep -q $mntpoint; do 678a272653SPeter Holm umount $mntpoint || sleep 1 688a272653SPeter Holmdone 698a272653SPeter Holmrm -f /tmp/kevent6 708a272653SPeter Holm 718a272653SPeter Holmexit 728a272653SPeter HolmEOF 738a272653SPeter Holm#include <sys/types.h> 748a272653SPeter Holm#include <sys/event.h> 758a272653SPeter Holm#include <sys/mman.h> 768a272653SPeter Holm#include <sys/wait.h> 778a272653SPeter Holm 788a272653SPeter Holm#include <err.h> 798a272653SPeter Holm#include <errno.h> 808a272653SPeter Holm#include <fcntl.h> 818a272653SPeter Holm#include <pthread.h> 828a272653SPeter Holm#include <sched.h> 838a272653SPeter Holm#include <signal.h> 848a272653SPeter Holm#include <stdio.h> 858a272653SPeter Holm#include <stdlib.h> 868a272653SPeter Holm#include <string.h> 878a272653SPeter Holm#include <unistd.h> 888a272653SPeter Holm 898a272653SPeter Holm#define LOOPS 500000 908a272653SPeter Holm#define PARALLEL 8 918a272653SPeter Holm 928a272653SPeter Holmstatic int fd; 938a272653SPeter Holmstatic char path[80]; 948a272653SPeter Holm 958a272653SPeter Holmstatic void * 968a272653SPeter Holmspin(void *arg __unused) 978a272653SPeter Holm{ 988a272653SPeter Holm int i; 998a272653SPeter Holm 1008a272653SPeter Holm for (i= 0;; i++) { 1018a272653SPeter Holm snprintf(path, sizeof(path), "file.%06d.%d", getpid(), i); 1028a272653SPeter Holm if ((fd = open(path, O_CREAT | O_TRUNC | O_RDWR, 0622)) == 1038a272653SPeter Holm -1) 1048a272653SPeter Holm err(1, "creat()"); 1058a272653SPeter Holm close(fd); 1068a272653SPeter Holm usleep(10000); 1078a272653SPeter Holm fd = 0; 1088a272653SPeter Holm unlink(path); 1098a272653SPeter Holm } 1108a272653SPeter Holm return (NULL); 1118a272653SPeter Holm} 1128a272653SPeter Holm 1138a272653SPeter Holmstatic void * 1148a272653SPeter Holmtest(void *arg __unused) 1158a272653SPeter Holm{ 1168a272653SPeter Holm int kq; 1178a272653SPeter Holm int i, n; 1188a272653SPeter Holm struct kevent ev; 1198a272653SPeter Holm struct timespec ts; 1208a272653SPeter Holm 1218a272653SPeter Holm for (i = 0; i < LOOPS; i++) { 1228a272653SPeter Holm if ((kq = kqueue()) < 0) 1238a272653SPeter Holm err(1, "kqueue()"); 1248a272653SPeter Holm 1258a272653SPeter Holm n = 0; 1268a272653SPeter Holm memset(&ev, 0, sizeof(ev)); 1278a272653SPeter Holm EV_SET(&ev, fd, EVFILT_VNODE, EV_ADD | EV_ENABLE | EV_CLEAR, 1288a272653SPeter Holm NOTE_DELETE|NOTE_RENAME|NOTE_EXTEND, 0, 0); 1298a272653SPeter Holm n++; 1308a272653SPeter Holm 1318a272653SPeter Holm if (kevent(kq, &ev, n, NULL, 0, NULL) < 0) { 1328a272653SPeter Holm close(kq); 1338a272653SPeter Holm continue; 1348a272653SPeter Holm } 1358a272653SPeter Holm 1368a272653SPeter Holm memset(&ev, 0, sizeof(ev)); 1378a272653SPeter Holm ts.tv_sec = 0; 1388a272653SPeter Holm ts.tv_nsec = 1000000; 1398a272653SPeter Holm if ((n = kevent(kq, NULL, 0, &ev, 1, &ts)) == -1) 1408a272653SPeter Holm err(1, "kevent()"); 1418a272653SPeter Holm 1428a272653SPeter Holm close(kq); 1438a272653SPeter Holm } 1448a272653SPeter Holm return (NULL); 1458a272653SPeter Holm} 1468a272653SPeter Holm 1478a272653SPeter Holmint 1488a272653SPeter Holmmain(void) 1498a272653SPeter Holm{ 1508a272653SPeter Holm pthread_t cp[PARALLEL], sp; 1518a272653SPeter Holm int e, i; 1528a272653SPeter Holm 1538a272653SPeter Holm if ((e = pthread_create(&sp, NULL, spin, NULL)) != 0) 1548a272653SPeter Holm errc(1, e, "pthread_create"); 1558a272653SPeter Holm 1568a272653SPeter Holm for (i = 0; i < PARALLEL; i++) { 1578a272653SPeter Holm if ((e = pthread_create(&cp[i], NULL, test, NULL)) != 0) 1588a272653SPeter Holm errc(1, e, "pthread_create"); 1598a272653SPeter Holm } 1608a272653SPeter Holm 1618a272653SPeter Holm for (i = 0; i < PARALLEL; i++) 1628a272653SPeter Holm pthread_join(cp[i], NULL); 1638a272653SPeter Holm 1648a272653SPeter Holm close(fd); 1658a272653SPeter Holm 1668a272653SPeter Holm return (0); 1678a272653SPeter Holm} 168