18a272653SPeter Holm#!/bin/sh 28a272653SPeter Holm 38a272653SPeter Holm# 48a272653SPeter Holm# Copyright (c) 2014 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# Missing wakeup in the bufobj_wwait(). 308a272653SPeter Holm 318a272653SPeter Holm# Snapshot of WiP work. 328a272653SPeter Holm# http://people.freebsd.org/~pho/stress/log/mmap15.txt 338a272653SPeter Holm# Not fixed 348a272653SPeter Holm 358a272653SPeter Holm# panic: invalid size 368a272653SPeter Holm# http://people.freebsd.org/~pho/stress/log/kostik738.txt 378a272653SPeter Holm# Fixed in r274878 388a272653SPeter Holm 398a272653SPeter Holm[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 408a272653SPeter Holm 418a272653SPeter Holm. ../default.cfg 428a272653SPeter Holm 438a272653SPeter Holmhere=`pwd` 448a272653SPeter Holmcd /tmp 458a272653SPeter Holmsed '1,/^EOF/d' < $here/$0 > mmap15.c 468a272653SPeter Holmmycc -o mmap15 -Wall -Wextra -O2 -g mmap15.c -lpthread || exit 1 478a272653SPeter Holmrm -f mmap15.c 488a272653SPeter Holm 498a272653SPeter Holmfor i in `jot 2`; do 508a272653SPeter Holm su $testuser -c /tmp/mmap15 & 518a272653SPeter Holmdone 528a272653SPeter Holmsleep 300 538a272653SPeter Holmwhile pgrep -q mmap15; do 548a272653SPeter Holm pkill -9 mmap15 558a272653SPeter Holm sleep 2 568a272653SPeter Holmdone 578a272653SPeter Holmwait 588a272653SPeter Holm 598a272653SPeter Holmrm -f /tmp/mmap15 /tmp/mmap15.core 608a272653SPeter Holmexit 0 618a272653SPeter HolmEOF 628a272653SPeter Holm#include <sys/types.h> 638a272653SPeter Holm#include <sys/mman.h> 648a272653SPeter Holm#include <sys/stat.h> 658a272653SPeter Holm#include <sys/time.h> 668a272653SPeter Holm#include <sys/wait.h> 678a272653SPeter Holm 688a272653SPeter Holm#include <err.h> 698a272653SPeter Holm#include <errno.h> 708a272653SPeter Holm#include <fcntl.h> 718a272653SPeter Holm#include <pthread.h> 728a272653SPeter Holm#include <pthread_np.h> 738a272653SPeter Holm#include <signal.h> 748a272653SPeter Holm#include <stdio.h> 758a272653SPeter Holm#include <stdlib.h> 768a272653SPeter Holm#include <string.h> 778a272653SPeter Holm#include <time.h> 788a272653SPeter Holm#include <unistd.h> 798a272653SPeter Holm 808a272653SPeter Holm#define LOOPS 2 818a272653SPeter Holm#define MMSIZE (256 * 1024) 828a272653SPeter Holm#define N (128 * 1024 / (int)sizeof(u_int32_t)) 838a272653SPeter Holm#define PARALLEL 50 848a272653SPeter Holm 858a272653SPeter Holmvoid *p; 868a272653SPeter Holmu_int32_t r[N]; 878a272653SPeter Holm 888a272653SPeter Holmunsigned long 898a272653SPeter Holmmakearg(void) 908a272653SPeter Holm{ 918a272653SPeter Holm unsigned long val; 928a272653SPeter Holm unsigned int i; 938a272653SPeter Holm 948a272653SPeter Holm val = arc4random(); 958a272653SPeter Holm i = arc4random() % 100; 968a272653SPeter Holm if (i < 20) 978a272653SPeter Holm val = val & 0xff; 988a272653SPeter Holm if (i >= 20 && i < 40) 998a272653SPeter Holm val = val & 0xffff; 1008a272653SPeter Holm if (i >= 40 && i < 60) 1018a272653SPeter Holm val = (unsigned long)(r) | (val & 0xffff); 1028a272653SPeter Holm#if defined(__LP64__) 1038a272653SPeter Holm if (i >= 60) { 1048a272653SPeter Holm val = (val << 32) | arc4random(); 1058a272653SPeter Holm if (i > 80) 1068a272653SPeter Holm val = val & 0x00007fffffffffffUL; 1078a272653SPeter Holm } 1088a272653SPeter Holm#endif 1098a272653SPeter Holm 1108a272653SPeter Holm return(val); 1118a272653SPeter Holm} 1128a272653SPeter Holm 1138a272653SPeter Holmvoid * 1148a272653SPeter Holmmakeptr(void) 1158a272653SPeter Holm{ 1168a272653SPeter Holm unsigned long val; 1178a272653SPeter Holm 1188a272653SPeter Holm if (p != MAP_FAILED && p != NULL) 1198a272653SPeter Holm val = (unsigned long)p + arc4random(); 1208a272653SPeter Holm else 1218a272653SPeter Holm val = makearg(); 1228a272653SPeter Holm val = trunc_page(val); 1238a272653SPeter Holm 1248a272653SPeter Holm return ((void *)val); 1258a272653SPeter Holm} 1268a272653SPeter Holm 1278a272653SPeter Holmvoid * 1288a272653SPeter Holmtmmap(void *arg __unused) 1298a272653SPeter Holm{ 1308a272653SPeter Holm size_t len; 1318a272653SPeter Holm int i, j, fd; 1328a272653SPeter Holm 1338a272653SPeter Holm pthread_set_name_np(pthread_self(), __func__); 1348a272653SPeter Holm len = MMSIZE; 1358a272653SPeter Holm 1368a272653SPeter Holm if ((fd = open("/dev/zero", O_RDWR)) == -1) 1378a272653SPeter Holm err(1,"open()"); 1388a272653SPeter Holm for (i = 0, j = 0; i < 100; i++) { 1398a272653SPeter Holm p = mmap(NULL, len, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0); 1408a272653SPeter Holm if (p != MAP_FAILED) 1418a272653SPeter Holm j++; 1428a272653SPeter Holm p = mmap(NULL, len, PROT_READ | PROT_WRITE, MAP_ANON, -1, 0); 1438a272653SPeter Holm if (p != MAP_FAILED) 1448a272653SPeter Holm j++; 1458a272653SPeter Holm } 1468a272653SPeter Holm if (j == 0) 1478a272653SPeter Holm fprintf(stderr, "FAIL: all mmap(2) calls failed.\n"); 1488a272653SPeter Holm close(fd); 1498a272653SPeter Holm 1508a272653SPeter Holm return (NULL); 1518a272653SPeter Holm} 1528a272653SPeter Holm 1538a272653SPeter Holmvoid * 1548a272653SPeter Holmtmlock(void *arg __unused) 1558a272653SPeter Holm{ 1568a272653SPeter Holm size_t len; 1578a272653SPeter Holm int i, n; 1588a272653SPeter Holm 1598a272653SPeter Holm pthread_set_name_np(pthread_self(), __func__); 1608a272653SPeter Holm n = 0; 1618a272653SPeter Holm for (i = 0; i < 200; i++) { 1628a272653SPeter Holm len = trunc_page(makearg()); 1638a272653SPeter Holm if (mlock(makeptr(), len) == 0) 1648a272653SPeter Holm n++; 1658a272653SPeter Holm len = trunc_page(makearg()); 1668a272653SPeter Holm if (arc4random() % 100 < 50) 1678a272653SPeter Holm if (munlock(makeptr(), len) == 0) 1688a272653SPeter Holm n++; 1698a272653SPeter Holm } 1708a272653SPeter Holm if (n < 10) 1718a272653SPeter Holm fprintf(stderr, "Note: tmlock() only succeeded %d times.\n", 1728a272653SPeter Holm n); 1738a272653SPeter Holm 1748a272653SPeter Holm return (NULL); 1758a272653SPeter Holm} 1768a272653SPeter Holm 1778a272653SPeter Holmvoid 1788a272653SPeter Holmtest(void) 1798a272653SPeter Holm{ 1808a272653SPeter Holm pthread_t tid[2]; 1818a272653SPeter Holm int i, rc; 1828a272653SPeter Holm 1838a272653SPeter Holm if ((rc = pthread_create(&tid[0], NULL, tmmap, NULL)) != 0) 1848a272653SPeter Holm errc(1, rc, "tmmap()"); 1858a272653SPeter Holm if ((rc = pthread_create(&tid[1], NULL, tmlock, NULL)) != 0) 1868a272653SPeter Holm errc(1, rc, "tmlock()"); 1878a272653SPeter Holm 1888a272653SPeter Holm for (i = 0; i < 100; i++) { 1898a272653SPeter Holm if (fork() == 0) { 1908a272653SPeter Holm usleep(10000); 1918a272653SPeter Holm _exit(0); 1928a272653SPeter Holm } 1938a272653SPeter Holm wait(NULL); 1948a272653SPeter Holm } 1958a272653SPeter Holm 1968a272653SPeter Holm raise(SIGSEGV); 1978a272653SPeter Holm 1988a272653SPeter Holm for (i = 0; i < 2; i++) 1998a272653SPeter Holm if ((rc = pthread_join(tid[i], NULL)) != 0) 2008a272653SPeter Holm errc(1, rc, "pthread_join(%d)", i); 2018a272653SPeter Holm _exit(0); 2028a272653SPeter Holm} 2038a272653SPeter Holm 2048a272653SPeter Holmint 2058a272653SPeter Holmmain(void) 2068a272653SPeter Holm{ 2078a272653SPeter Holm int i, j; 2088a272653SPeter Holm 2098a272653SPeter Holm for (i = 0; i < N; i++) 2108a272653SPeter Holm r[i] = arc4random(); 2118a272653SPeter Holm 2128a272653SPeter Holm for (i = 0; i < LOOPS; i++) { 2138a272653SPeter Holm for (j = 0; j < PARALLEL; j++) { 2148a272653SPeter Holm if (fork() == 0) 2158a272653SPeter Holm test(); 2168a272653SPeter Holm } 2178a272653SPeter Holm 2188a272653SPeter Holm for (j = 0; j < PARALLEL; j++) 2198a272653SPeter Holm wait(NULL); 2208a272653SPeter Holm } 2218a272653SPeter Holm 2228a272653SPeter Holm return (0); 2238a272653SPeter Holm} 224