svn commit: r278955 - user/pho/stress2/misc
Peter Holm
pho at FreeBSD.org
Wed Feb 18 13:07:28 UTC 2015
Author: pho
Date: Wed Feb 18 13:07:26 2015
New Revision: 278955
URL: https://svnweb.freebsd.org/changeset/base/278955
Log:
Added more mmap(2)/mlock(2) test scenarios.
Sponsored by: EMC / Isilon storage division
Added:
user/pho/stress2/misc/mmap14.sh (contents, props changed)
user/pho/stress2/misc/mmap15.sh (contents, props changed)
user/pho/stress2/misc/mmap16.sh (contents, props changed)
user/pho/stress2/misc/mmap17.sh (contents, props changed)
user/pho/stress2/misc/mmap18.sh (contents, props changed)
user/pho/stress2/misc/mmap20.sh (contents, props changed)
user/pho/stress2/misc/mmap21.sh (contents, props changed)
user/pho/stress2/misc/mmap22.sh (contents, props changed)
Added: user/pho/stress2/misc/mmap14.sh
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ user/pho/stress2/misc/mmap14.sh Wed Feb 18 13:07:26 2015 (r278955)
@@ -0,0 +1,222 @@
+#!/bin/sh
+
+#
+# Copyright (c) 2014 EMC Corp.
+# All rights reserved.
+#
+# 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.
+#
+# $FreeBSD$
+#
+
+# Simplified version of mmap10.sh with focus on core dumps
+# Deadlock seen:
+# http://people.freebsd.org/~pho/stress/log/kostik673.txt
+# No issues seen with r272060.
+
+[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
+
+. ../default.cfg
+
+here=`pwd`
+cd /tmp
+sed '1,/^EOF/d' < $here/$0 > mmap14.c
+mycc -o mmap14 -Wall -Wextra -O2 -g mmap14.c -lpthread || exit 1
+rm -f mmap14.c
+
+daemon sh -c "(cd $here/../testcases/swap; ./swap -t 2m -i 20 -k -h)"
+rnd=`od -An -N1 -t u1 /dev/random | sed 's/ //g'`
+sleep $((rnd % 10))
+for i in `jot 2`; do
+ /tmp/mmap14
+done
+killall -q swap
+
+rm -f /tmp/mmap14 /tmp/mmap14.core
+exit 0
+EOF
+#include <sys/types.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/wait.h>
+
+#include <err.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <pthread.h>
+#include <pthread_np.h>
+#include <sched.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+
+#define LOOPS 2
+#define N (128 * 1024 / (int)sizeof(u_int32_t))
+#define PARALLEL 50
+
+void *p;
+u_int32_t r[N];
+
+unsigned long
+makearg(void)
+{
+ unsigned long val;
+ unsigned int i;
+
+ val = arc4random();
+ i = arc4random() % 100;
+ if (i < 20)
+ val = val & 0xff;
+ if (i >= 20 && i < 40)
+ val = val & 0xffff;
+ if (i >= 40 && i < 60)
+ val = (unsigned long)(r) | (val & 0xffff);
+#if defined(__LP64__)
+ if (i >= 60) {
+ val = (val << 32) | arc4random();
+ if (i > 80)
+ val = val & 0x00007fffffffffffUL;
+ }
+#endif
+
+ return(val);
+}
+
+void *
+makeptr(void)
+{
+ unsigned long val;
+
+ if (p != MAP_FAILED && p != NULL)
+ val = (unsigned long)p + arc4random();
+ else
+ val = makearg();
+ val = trunc_page(val);
+
+ return ((void *)val);
+}
+
+void *
+tmmap(void *arg __unused)
+{
+ size_t len;
+ int i, fd;
+
+ pthread_set_name_np(pthread_self(), __func__);
+ len = 1LL * 1024 * 1024 * 1024;
+
+ for (i = 0; i < 100; i++) {
+ if ((fd = open("/dev/zero", O_RDWR)) == -1)
+ err(1,"open()");
+
+ if ((p = mmap(NULL, len, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd,
+ 0)) != MAP_FAILED) {
+ usleep(100);
+ munmap(p, len);
+ }
+
+ if ((p = mmap(NULL, len, PROT_READ | PROT_WRITE, MAP_ANON, -1, 0)) !=
+ MAP_FAILED) {
+ usleep(100);
+ munmap(p, len);
+ }
+ close(fd);
+ }
+
+ return (NULL);
+}
+
+void *
+tmlock(void *arg __unused)
+{
+ size_t len;
+ int i, n;
+
+ pthread_set_name_np(pthread_self(), __func__);
+ n = 0;
+ for (i = 0; i < 200; i++) {
+ len = trunc_page(makearg());
+ if (mlock(makeptr(), len) == 0)
+ n++;
+ len = trunc_page(makearg());
+ if (arc4random() % 100 < 50)
+ if (munlock(makeptr(), len) == 0)
+ n++;
+ }
+ if (n < 10)
+ fprintf(stderr, "Note: tmlock() only succeeded %d times.\n",
+ n);
+
+ return (NULL);
+}
+
+void
+test(void)
+{
+ pthread_t tid[4];
+ int i, rc;
+
+ if ((rc = pthread_create(&tid[0], NULL, tmmap, NULL)) != 0)
+ errc(1, rc, "tmmap()");
+ if ((rc = pthread_create(&tid[1], NULL, tmlock, NULL)) != 0)
+ errc(1, rc, "tmlock()");
+
+ for (i = 0; i < 100; i++) {
+ if (fork() == 0) {
+ usleep(10000);
+ _exit(0);
+ }
+ wait(NULL);
+ }
+
+ raise(SIGSEGV);
+
+ for (i = 0; i < 2; i++)
+ if ((rc = pthread_join(tid[i], NULL)) != 0)
+ errc(1, rc, "pthread_join(%d)", i);
+ _exit(0);
+}
+
+int
+main(void)
+{
+ int i, j;
+
+ for (i = 0; i < N; i++)
+ r[i] = arc4random();
+
+ for (i = 0; i < LOOPS; i++) {
+ for (j = 0; j < PARALLEL; j++) {
+ if (fork() == 0)
+ test();
+ }
+
+ for (j = 0; j < PARALLEL; j++)
+ wait(NULL);
+ }
+
+ return (0);
+}
Added: user/pho/stress2/misc/mmap15.sh
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ user/pho/stress2/misc/mmap15.sh Wed Feb 18 13:07:26 2015 (r278955)
@@ -0,0 +1,213 @@
+#!/bin/sh
+
+#
+# Copyright (c) 2014 EMC Corp.
+# All rights reserved.
+#
+# 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.
+#
+# $FreeBSD$
+#
+
+# Missing wakeup in the bufobj_wwait().
+
+# Snapshot of WiP work.
+# http://people.freebsd.org/~pho/stress/log/mmap15.txt
+# Not fixed
+
+# panic: invalid size
+# http://people.freebsd.org/~pho/stress/log/kostik738.txt
+# Fixed in r274878
+
+[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
+
+. ../default.cfg
+
+here=`pwd`
+cd /tmp
+sed '1,/^EOF/d' < $here/$0 > mmap15.c
+mycc -o mmap15 -Wall -Wextra -O2 -g mmap15.c -lpthread || exit 1
+rm -f mmap15.c
+
+for i in `jot 2`; do
+ su $testuser -c /tmp/mmap15
+done
+
+rm -f /tmp/mmap15 /tmp/mmap15.core
+exit 0
+EOF
+#include <sys/types.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/wait.h>
+
+#include <err.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <pthread.h>
+#include <pthread_np.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+
+#define LOOPS 2
+#define N (128 * 1024 / (int)sizeof(u_int32_t))
+#define PARALLEL 50
+
+void *p;
+u_int32_t r[N];
+
+unsigned long
+makearg(void)
+{
+ unsigned long val;
+ unsigned int i;
+
+ val = arc4random();
+ i = arc4random() % 100;
+ if (i < 20)
+ val = val & 0xff;
+ if (i >= 20 && i < 40)
+ val = val & 0xffff;
+ if (i >= 40 && i < 60)
+ val = (unsigned long)(r) | (val & 0xffff);
+#if defined(__LP64__)
+ if (i >= 60) {
+ val = (val << 32) | arc4random();
+ if (i > 80)
+ val = val & 0x00007fffffffffffUL;
+ }
+#endif
+
+ return(val);
+}
+
+void *
+makeptr(void)
+{
+ unsigned long val;
+
+ if (p != MAP_FAILED && p != NULL)
+ val = (unsigned long)p + arc4random();
+ else
+ val = makearg();
+ val = trunc_page(val);
+
+ return ((void *)val);
+}
+
+void *
+tmmap(void *arg __unused)
+{
+ size_t len;
+ int i, fd;
+
+ pthread_set_name_np(pthread_self(), __func__);
+ len = 1LL * 128 * 1024 * 1024;
+
+ if ((fd = open("/dev/zero", O_RDWR)) == -1)
+ err(1,"open()");
+ for (i = 0; i < 100; i++) {
+ p = mmap(NULL, len, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0);
+ p = mmap(NULL, len, PROT_READ | PROT_WRITE, MAP_ANON, -1, 0);
+ }
+ close(fd);
+
+ return (NULL);
+}
+
+void *
+tmlock(void *arg __unused)
+{
+ size_t len;
+ int i, n;
+
+ pthread_set_name_np(pthread_self(), __func__);
+ n = 0;
+ for (i = 0; i < 200; i++) {
+ len = trunc_page(makearg());
+ if (mlock(makeptr(), len) == 0)
+ n++;
+ len = trunc_page(makearg());
+ if (arc4random() % 100 < 50)
+ if (munlock(makeptr(), len) == 0)
+ n++;
+ }
+ if (n < 10)
+ fprintf(stderr, "Note: tmlock() only succeeded %d times.\n",
+ n);
+
+ return (NULL);
+}
+
+void
+test(void)
+{
+ pthread_t tid[2];
+ int i, rc;
+
+ if ((rc = pthread_create(&tid[0], NULL, tmmap, NULL)) != 0)
+ errc(1, rc, "tmmap()");
+ if ((rc = pthread_create(&tid[1], NULL, tmlock, NULL)) != 0)
+ errc(1, rc, "tmlock()");
+
+ for (i = 0; i < 100; i++) {
+ if (fork() == 0) {
+ usleep(10000);
+ _exit(0);
+ }
+ wait(NULL);
+ }
+
+ raise(SIGSEGV);
+
+ for (i = 0; i < 2; i++)
+ if ((rc = pthread_join(tid[i], NULL)) != 0)
+ errc(1, rc, "pthread_join(%d)", i);
+ _exit(0);
+}
+
+int
+main(void)
+{
+ int i, j;
+
+ alarm(120);
+ for (i = 0; i < N; i++)
+ r[i] = arc4random();
+
+ for (i = 0; i < LOOPS; i++) {
+ for (j = 0; j < PARALLEL; j++) {
+ if (fork() == 0)
+ test();
+ }
+
+ for (j = 0; j < PARALLEL; j++)
+ wait(NULL);
+ }
+
+ return (0);
+}
Added: user/pho/stress2/misc/mmap16.sh
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ user/pho/stress2/misc/mmap16.sh Wed Feb 18 13:07:26 2015 (r278955)
@@ -0,0 +1,147 @@
+#!/bin/sh
+
+#
+# Copyright (c) 2014 EMC Corp.
+# All rights reserved.
+#
+# 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.
+#
+# $FreeBSD$
+#
+
+exit 0 # Experimental test scenario
+
+# Test scenario by kib@
+
+[ `uname -m` = "i386" ] || exit 0
+
+. ../default.cfg
+
+here=`pwd`
+cd /tmp
+sed '1,/^EOF/d' < $here/$0 > mmap16.c
+mycc -o mmap16 -Wall -Wextra -O2 -g mmap16.c -lpthread || exit 1
+rm -f mmap16.c /tmp/mmap16.core
+rm -f /tmp/mmap16.core
+
+/tmp/mmap16 > /dev/null
+
+rm -f /tmp/mmap16 /tmp/mmap16.core
+exit 0
+EOF
+/* $Id: map_hole.c,v 1.6 2014/06/16 05:52:03 kostik Exp kostik $ */
+
+#include <sys/types.h>
+#include <sys/mman.h>
+#include <sys/resource.h>
+#include <err.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ucontext.h>
+#include <unistd.h>
+
+#ifndef MAP_HOLE
+#define MAP_HOLE 0x00002000 /* no backing pages */
+#endif
+
+static void
+sighandler(int signo, siginfo_t *info, void *uap1)
+{
+ static char scratch;
+ ucontext_t *uap;
+
+ uap = uap1;
+ printf("SIG%s(%d) at %p (%%eax %p)\n",
+ signo < sys_nsig ? sys_signame[signo] : "SOME", signo,
+ info->si_addr, (void *)(uintptr_t)uap->uc_mcontext.mc_eax);
+ uap->uc_mcontext.mc_eax = (uintptr_t)&scratch;
+}
+
+static void
+access_addr(char *addr)
+{
+ char r;
+
+ r = '1';
+ printf("accessing %p\n", addr);
+ __asm __volatile("movb %0,(%%eax)" : : "i"(r), "a"(addr) : "memory");
+ printf("done\n");
+}
+
+static int pagesz;
+
+static void
+test_access(char *addr)
+{
+ struct rusage ru;
+ long majflt, minflt;
+
+ if (getrusage(RUSAGE_THREAD, &ru) == -1)
+ err(1, "getrusage");
+ majflt = ru.ru_majflt;
+ minflt = ru.ru_minflt;
+ access_addr(addr);
+ if (mprotect(addr, pagesz, PROT_READ | PROT_WRITE) == -1)
+ warn("mprotect");
+ access_addr(addr);
+ if (getrusage(RUSAGE_THREAD, &ru) == -1)
+ err(1, "getrusage");
+ majflt = ru.ru_majflt - majflt;
+ minflt = ru.ru_minflt - minflt;
+ printf("majflt %ld minflt %ld\n", majflt, minflt);
+}
+
+int
+main(void)
+{
+ struct sigaction sa;
+ char *addr;
+ char cmd[128];
+
+ bzero(&sa, sizeof(sa));
+ sa.sa_sigaction = sighandler;
+ sa.sa_flags = SA_SIGINFO;
+ if (sigaction(SIGSEGV, &sa, NULL) == -1)
+ err(1, "sigaction");
+ pagesz = getpagesize();
+
+ printf("MAP_HOLE\n");
+ addr = mmap(NULL, pagesz, PROT_NONE, MAP_HOLE, -1, 0);
+ if (addr == (char *)MAP_FAILED)
+ err(1, "FAIL: mmap(MAP_HOLE)");
+ test_access(addr);
+
+ printf("PROT_NONE wire\n");
+ addr = mmap(NULL, pagesz, PROT_NONE, MAP_ANON, -1, 0);
+ if (addr == (char *)MAP_FAILED)
+ err(1, "mmap(PROT_NONE)");
+ if (mlock(addr, pagesz) == -1)
+ err(1, "mlock");
+ test_access(addr);
+
+ snprintf(cmd, sizeof(cmd), "procstat -v %d", getpid());
+ system(cmd);
+
+ return (0);
+}
Added: user/pho/stress2/misc/mmap17.sh
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ user/pho/stress2/misc/mmap17.sh Wed Feb 18 13:07:26 2015 (r278955)
@@ -0,0 +1,88 @@
+#!/bin/sh
+
+#
+# Copyright (c) 2014 EMC Corp.
+# All rights reserved.
+#
+# 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 scenario by kib@
+
+. ../default.cfg
+
+here=`pwd`
+cd /tmp
+sed '1,/^EOF/d' < $here/$0 > mmap17.c
+mycc -o mmap17 -Wall -Wextra -O2 -g mmap17.c -lpthread || exit 1
+rm -f mmap17.c /tmp/mmap17.core
+rm -f /tmp/mmap17.core
+
+{ /tmp/mmap17 > /dev/null; } 2>&1 | grep -v worked
+
+rm -f /tmp/mmap17 /tmp/mmap17.core
+exit 0
+EOF
+/* $Id: map_excl.c,v 1.2 2014/06/16 06:02:52 kostik Exp kostik $ */
+
+#include <sys/mman.h>
+#include <err.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#ifndef MAP_EXCL
+#define MAP_EXCL 0x00004000 /* for MAP_FIXED, fail if address is used */
+#endif
+
+int
+main(void)
+{
+ char *addr, *addr1;
+ int pagesz;
+ char cmd[128];
+
+ pagesz = getpagesize();
+ addr = mmap(NULL, pagesz, PROT_READ | PROT_WRITE, MAP_ANON, -1, 0);
+ if (addr == (char *)MAP_FAILED)
+ err(1, "mmap 1");
+ printf("addr %p\n", addr);
+
+ addr -= pagesz;
+ addr1 = mmap(addr, 3 * pagesz, PROT_READ | PROT_WRITE,
+ MAP_ANON | MAP_FIXED | MAP_EXCL, -1, 0);
+ if (addr1 == MAP_FAILED)
+ warn("EXCL worked");
+ else
+ fprintf(stderr, "EXCL failed\n");
+
+ addr1 = mmap(addr, 3 * pagesz, PROT_READ | PROT_WRITE,
+ MAP_ANON | MAP_FIXED, -1, 0);
+ printf("addr1 %p\n", addr);
+
+ snprintf(cmd, sizeof(cmd), "procstat -v %d", getpid());
+ system(cmd);
+
+ return (0);
+}
Added: user/pho/stress2/misc/mmap18.sh
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ user/pho/stress2/misc/mmap18.sh Wed Feb 18 13:07:26 2015 (r278955)
@@ -0,0 +1,275 @@
+#!/bin/sh
+
+#
+# Copyright (c) 2014 EMC Corp.
+# All rights reserved.
+#
+# 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.
+#
+# $FreeBSD$
+#
+
+# Copy of mmap10.sh with core dump disabled.
+# http://people.freebsd.org/~pho/stress/log/kostik711.txt
+# http://people.freebsd.org/~pho/stress/log/mmap18.txt
+
+[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
+
+. ../default.cfg
+
+here=`pwd`
+cd /tmp
+sed '1,/^EOF/d' < $here/$0 > mmap18.c
+mycc -o mmap18 -Wall -Wextra -O2 mmap18.c -lpthread || exit 1
+rm -f mmap18.c
+
+daemon sh -c "(cd $here/../testcases/swap; ./swap -t 2m -i 20 -k)"
+rnd=`od -An -N1 -t u1 /dev/random | sed 's/ //g'`
+sleep $((rnd % 10))
+for i in `jot 2`; do
+ /tmp/mmap18
+done
+killall -q swap
+
+rm -f /tmp/mmap18 /tmp/mmap18.core
+exit 0
+EOF
+#include <sys/types.h>
+#include <sys/mman.h>
+#include <sys/resource.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/wait.h>
+
+#include <err.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <pthread.h>
+#include <pthread_np.h>
+#include <sched.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+
+#define LOOPS 50
+#define N (128 * 1024 / (int)sizeof(u_int32_t))
+#define PARALLEL 50
+
+u_int32_t r[N];
+void *p;
+
+unsigned long
+makearg(void)
+{
+ unsigned long val;
+ unsigned int i;
+
+ val = arc4random();
+ i = arc4random() % 100;
+ if (i < 20)
+ val = val & 0xff;
+ if (i >= 20 && i < 40)
+ val = val & 0xffff;
+ if (i >= 40 && i < 60)
+ val = (unsigned long)(r) | (val & 0xffff);
+#if defined(__LP64__)
+ if (i >= 60) {
+ val = (val << 32) | arc4random();
+ if (i > 80)
+ val = val & 0x00007fffffffffffUL;
+ }
+#endif
+
+ return(val);
+}
+
+void *
+makeptr(void)
+{
+ unsigned long val;
+
+ if (p != MAP_FAILED && p != NULL)
+ val = (unsigned long)p + arc4random();
+ else
+ val = makearg();
+ val = trunc_page(val);
+
+ return ((void *)val);
+}
+
+void *
+tmmap(void *arg __unused)
+{
+ size_t len;
+ int i, fd;
+
+ pthread_set_name_np(pthread_self(), __func__);
+ len = 1LL * 1024 * 1024 * 1024;
+
+ for (i = 0; i < 100; i++) {
+ if ((fd = open("/dev/zero", O_RDWR)) == -1)
+ err(1,"open()");
+
+ if ((p = mmap(NULL, len, PROT_READ | PROT_WRITE, MAP_PRIVATE,
+ fd, 0)) != MAP_FAILED) {
+ usleep(100);
+ munmap(p, len);
+ }
+
+ if ((p = mmap(NULL, len, PROT_READ | PROT_WRITE, MAP_ANON, -1,
+ 0)) != MAP_FAILED) {
+ usleep(100);
+ munmap(p, len);
+ }
+ close(fd);
+ }
+
+ return (NULL);
+}
+
+void *
+tmlock(void *arg __unused)
+{
+ int i, n;
+ size_t len;
+
+ pthread_set_name_np(pthread_self(), __func__);
+ n = 0;
+ for (i = 0; i < 200; i++) {
+ len = trunc_page(makearg());
+ if (mlock(makeptr(), len) == 0)
+ n++;
+ len = trunc_page(makearg());
+ if (arc4random() % 100 < 50)
+ if (munlock(makeptr(), len) == 0)
+ n++;
+ }
+ if (n < 10)
+ fprintf(stderr, "Note: tmlock() only succeeded %d times.\n",
+ n);
+
+ return (NULL);
+}
+
+void *
+tmprotect(void *arg __unused)
+{
+ const void *addr;
+ size_t len;
+ int i, n, prot;
+
+ pthread_set_name_np(pthread_self(), __func__);
+ n = 0;
+ for (i = 0; i < 200; i++) {
+ addr = makeptr();
+ len = trunc_page(makearg());
+ prot = makearg();
+ if (mprotect(addr, len, prot) == 0)
+ n++;
+ usleep(1000);
+ }
+ if (n < 10)
+ fprintf(stderr, "Note: tmprotect() only succeeded %d times.\n",
+ n);
+
+ return (NULL);
+}
+
+void *
+tmlockall(void *arg __unused)
+{
+ int flags, i, n;
+
+ pthread_set_name_np(pthread_self(), __func__);
+ n = 0;
+ for (i = 0; i < 200; i++) {
+ flags = makearg();
+ if (mlockall(flags) == 0)
+ n++;
+ usleep(100);
+ munlockall();
+ usleep(1000);
+ }
+ if (n < 10)
+ fprintf(stderr, "Note: tmlockall() only succeeded %d times.\n",
+ n);
+
+ return (NULL);
+}
+
+void
+test(void)
+{
+ pthread_t tid[4];
+ int i, rc;
+
+ if ((rc = pthread_create(&tid[0], NULL, tmmap, NULL)) != 0)
+ errc(1, rc, "tmmap()");
+ if ((rc = pthread_create(&tid[1], NULL, tmlock, NULL)) != 0)
+ errc(1, rc, "tmlock()");
+ if ((rc = pthread_create(&tid[2], NULL, tmprotect, NULL)) != 0)
+ errc(1, rc, "tmprotect()");
+ if ((rc = pthread_create(&tid[3], NULL, tmlockall, NULL)) != 0)
+ errc(1, rc, "tmlockall()");
+
+ for (i = 0; i < 100; i++) {
+ if (fork() == 0) {
+ usleep(10000);
+ _exit(0);
+ }
+ wait(NULL);
+ }
+
+ for (i = 0; i < 4; i++)
+ if ((rc = pthread_join(tid[i], NULL)) != 0)
+ errc(1, rc, "pthread_join(%d)", i);
+ _exit(0);
+}
+
+int
+main(void)
+{
+ struct rlimit rl;
+ int i, j;
+
+ rl.rlim_max = rl.rlim_cur = 0;
+ if (setrlimit(RLIMIT_CORE, &rl) == -1)
+ warn("setrlimit");
+
+ for (i = 0; i < N; i++)
+ r[i] = arc4random();
+
+ for (i = 0; i < LOOPS; i++) {
+ for (j = 0; j < PARALLEL; j++) {
+ if (fork() == 0)
+ test();
+ }
+
+ for (j = 0; j < PARALLEL; j++)
+ wait(NULL);
+ }
+
+ return (0);
+}
Added: user/pho/stress2/misc/mmap20.sh
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ user/pho/stress2/misc/mmap20.sh Wed Feb 18 13:07:26 2015 (r278955)
@@ -0,0 +1,84 @@
+#!/bin/sh
+
+#
+# Copyright (c) 2014 EMC Corp.
+# All rights reserved.
+#
+# 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.
+#
+# $FreeBSD$
+#
+
+# "panic: pmap_unwire: pte 0x672d405 is missing PG_W" seen.
+# http://people.freebsd.org/~pho/stress/log/mmap20.txt
+
+# Test scenario by: Mark Johnston markj@
+
+# Fixed by r272036
+
*** DIFF OUTPUT TRUNCATED AT 1000 LINES ***
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