1#!/bin/sh 2 3# 4# SPDX-License-Identifier: BSD-2-Clause-FreeBSD 5# 6# Copyright (c) 2019 Dell EMC Isilon 7# 8# Redistribution and use in source and binary forms, with or without 9# modification, are permitted provided that the following conditions 10# are met: 11# 1. Redistributions of source code must retain the above copyright 12# notice, this list of conditions and the following disclaimer. 13# 2. Redistributions in binary form must reproduce the above copyright 14# notice, this list of conditions and the following disclaimer in the 15# documentation and/or other materials provided with the distribution. 16# 17# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27# SUCH DAMAGE. 28# 29 30# "panic: handle_workitem_remove: DIRCHG and worklist not empty." seen: 31# https://people.freebsd.org/~pho/stress/log/rename14.txt 32# Fixed by r356714 33 34# Based on a syzkaller scenario reported by tuexen@freebsd.org 35 36# "panic: journal_jremref: Lost inodedep": 37# https://people.freebsd.org/~pho/stress/log/log0279.txt 38 39. ../default.cfg 40[ `id -u` -ne 0 ] && echo "Must be root!" && exit 1 41 42dir=/tmp 43odir=`pwd` 44cd $dir 45sed -e '1,/^EOF/d' < $odir/$0 > $dir/rename14.c 46mycc -o rename14 -Wall -Wextra -O0 -g rename14.c -lpthread || exit 1 47rm -f rename14.c 48cd $odir 49 50set -e 51mount | grep "on $mntpoint " | grep -q /dev/md && umount -f $mntpoint 52[ -c /dev/md$mdstart ] && mdconfig -d -u $mdstart 53mdconfig -a -t swap -s 2g -u $mdstart 54[ `jot -r 1 0 1` -eq 1 ] && opt="-U -n" || opt="-j -n" 55newfs -j -n md$mdstart > /dev/null 56mount /dev/md$mdstart $mntpoint 57set +e 58 59s=0 60(cd /mnt; /tmp/rename14) 61[ -f rename14.core -a $s -eq 0 ] && 62 { ls -l rename14.core; mv rename14.core $dir; s=1; } 63cd $odir 64 65for i in `jot 6`; do 66 mount | grep -q "on $mntpoint " || break 67 umount $mntpoint && break || sleep 10 68 [ $i -eq 6 ] && 69 { echo FATAL; fstat -mf $mntpoint; exit 1; } 70done 71checkfs /dev/md$mdstart || s=2 72mdconfig -d -u $mdstart 73rm -rf $dir/rename14 74exit $s 75 76EOF 77#include <sys/param.h> 78#include <sys/mman.h> 79#include <sys/stat.h> 80#include <sys/wait.h> 81 82#include <machine/atomic.h> 83 84#include <err.h> 85#include <errno.h> 86#include <fcntl.h> 87#include <pthread.h> 88#include <stdio.h> 89#include <stdlib.h> 90#include <time.h> 91#include <unistd.h> 92 93static sig_atomic_t done_testing; 94static volatile u_int *share; 95 96#define PARALLEL 10 97#define RUNTIME (3 * 60) 98#define SYNC 0 99 100static void * 101t1(void *data __unused) 102{ 103 char n1[80]; 104 105 snprintf(n1, sizeof(n1), "file1.%d", getpid()); 106 while (done_testing == 0) { 107 rmdir(n1); 108 usleep(50000); 109 } 110 111 return (NULL); 112} 113 114static void * 115t2(void *data __unused) 116{ 117 time_t start; 118 char n0[80], n00[80], n1[80]; 119 120 snprintf(n0, sizeof(n0), "file0.%d", getpid()); 121 snprintf(n00, sizeof(n00), "file0.%d/file0", getpid()); 122 snprintf(n1, sizeof(n1), "file1.%d", getpid()); 123 if (mkdir(n0, 0) == -1) 124 err(1, "mkdir(%s)", n0); 125 126 start = time(NULL); 127 while (time(NULL) - start < 60) { 128 if (mkdir(n00, 0) == -1) 129 err(1, "mkdir(%s)", n00); 130 if (rename(n00, n1) == -1) 131 err(1, "rename(i%s, %s)", n00, n1); 132 } 133 if (rmdir(n0) == -1) 134 err(1, "rmdir(%s)", n0); 135 done_testing = 1; 136 137 return (NULL); 138} 139 140static void 141test(void) 142{ 143 pthread_t tid[2]; 144 int r; 145 146 atomic_add_int(&share[SYNC], 1); 147 while (share[SYNC] != PARALLEL) 148 ; 149 150 done_testing = 0; 151 if ((r = pthread_create(&tid[0], NULL, t1, NULL)) != 0) 152 errc(1, r, "pthread_create"); 153 if ((r = pthread_create(&tid[1], NULL, t2, NULL)) != 0) 154 errc(1, r, "pthread_create"); 155 156 if ((r = pthread_join(tid[0], NULL)) != 0) 157 errc(1, r, "pthread_join"); 158 if ((r = pthread_join(tid[1], NULL)) != 0) 159 errc(1, r, "pthread_join"); 160 161 _exit(0); 162} 163 164int 165main(void) 166{ 167 pid_t pids[PARALLEL]; 168 size_t len; 169 time_t start; 170 int e, i, status; 171 172 e = 0; 173 len = PAGE_SIZE; 174 if ((share = mmap(NULL, len, PROT_READ | PROT_WRITE, 175 MAP_ANON | MAP_SHARED, -1, 0)) == MAP_FAILED) 176 err(1, "mmap"); 177 178 start = time(NULL); 179 while ((time(NULL) - start) < RUNTIME && e == 0) { 180 share[SYNC] = 0; 181 for (i = 0; i < PARALLEL; i++) { 182 if ((pids[i] = fork()) == 0) 183 test(); 184 if (pids[i] == -1) 185 err(1, "fork()"); 186 } 187 for (i = 0; i < PARALLEL; i++) { 188 if (waitpid(pids[i], &status, 0) == -1) 189 err(1, "waitpid(%d)", pids[i]); 190 if (status != 0) { 191 if (WIFSIGNALED(status)) 192 fprintf(stderr, 193 "pid %d exit signal %d\n", 194 pids[i], WTERMSIG(status)); 195 } 196 e += status == 0 ? 0 : 1; 197 } 198 } 199 200 return (e); 201} 202