svn commit: r188758 - projects/stress2/misc
Peter Holm
pho at FreeBSD.org
Wed Feb 18 11:02:52 PST 2009
Author: pho
Date: Wed Feb 18 19:02:51 2009
New Revision: 188758
URL: http://svn.freebsd.org/changeset/base/188758
Log:
Test scenarios for the mmap and other process address space manipulation
functions.
Approved by: kib
Added:
projects/stress2/misc/mmap2.sh (contents, props changed)
projects/stress2/misc/mmap3.sh (contents, props changed)
Added: projects/stress2/misc/mmap2.sh
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ projects/stress2/misc/mmap2.sh Wed Feb 18 19:02:51 2009 (r188758)
@@ -0,0 +1,176 @@
+#!/bin/sh
+
+#
+# Copyright (c) 2009 Peter Holm <pho at FreeBSD.org>
+# 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.
+#
+# $FreeBSD$
+#
+
+# Stress mmap by having at most 100 threads mapping random areas within
+# a 100 Mb range.
+
+# Test scenario by kib@
+
+odir=`pwd`
+cd /tmp
+sed '1,/^EOF/d' < $odir/$0 > mmap2.c
+cc -o mmap2 -Wall mmap2.c -lpthread
+rm -f mmap2.c
+
+for i in `jot 10`; do
+ ./mmap2
+done
+rm -f ./mmap2
+exit
+
+EOF
+#include <sys/types.h>
+#include <err.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <pthread.h>
+#include <sys/mman.h>
+#include <sys/param.h>
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+
+#define THREADS 100
+#define STARTADDR 0x50000000U
+#define ADRSPACE 0x06400000U /* 100 Mb */
+
+static void
+work(int nr)
+{
+ int fd, m;
+ void *p;
+ size_t left, len;
+ char path[128];
+
+ p = (void *)STARTADDR + trunc_page(arc4random() % ADRSPACE);
+ left = ADRSPACE - (size_t)p + STARTADDR;
+ len = trunc_page(arc4random() % left) + PAGE_SIZE;
+ fd = -1;
+
+ if (arc4random() % 100 < 90)
+ sprintf(path, "/tmp/mmap.%06d.%04d", getpid(), nr);
+ else
+ sprintf(path, "/dev/zero");
+ if (arc4random() % 2 == 0) {
+ if ((fd = open(path, O_CREAT | O_TRUNC | O_RDWR, 0622)) == -1)
+ err(1,"open()");
+ if (ftruncate(fd, len) == -1)
+ err(1, "ftruncate");
+ if (arc4random() % 2 == 0) {
+ if ((p = mmap(p, len, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0)) ==
+ MAP_FAILED) {
+ if (errno == ENOMEM)
+ return;
+ err(1, "mmap()");
+ }
+ } else {
+ if ((p = mmap(p, len, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0)) ==
+ MAP_FAILED) {
+ if (errno == ENOMEM)
+ return;
+ err(1, "mmap()");
+ }
+ }
+ if (fd > 0 && strcmp(path, "/dev/zero"))
+ if (unlink(path) == -1)
+ err(1, "unlink(%s)", path);
+ } else {
+ if ((p = mmap(p, len, PROT_READ | PROT_WRITE, MAP_ANON, -1, 0)) == MAP_FAILED) {
+ if (errno == ENOMEM)
+ return;
+ err(1, "mmap()");
+ }
+ strcpy(path, "anon");
+ }
+#if 0
+ printf("nr = %d, %-14s, start = %p, end = %p, len = 0x%08x, (%5d pages)\n",
+ nr, path, p, p + len, len, len>>PAGE_SHIFT);
+#endif
+
+ *(int *)p = 1;
+
+ if (arc4random() % 2 == 0) {
+ m = arc4random() % 10;
+ if (madvise(p, len, m) == -1)
+ warn("madvise(%p, %d, %d)", p, len, m);
+ }
+ if (arc4random() %2 == 0)
+ if (mprotect(p, trunc_page(arc4random() % len), PROT_READ) == -1 )
+ err(1, "mprotect failed with error:");
+ if (arc4random() % 2 == 0) {
+ if (arc4random() %2 == 0) {
+ if (msync(p, 0, MS_SYNC) == -1)
+ err(1, "msync(%p)", p);
+ } else {
+ if (msync(p, 0, MS_INVALIDATE) == -1)
+ err(1, "msync(%p)", p);
+ }
+ }
+ if (munmap(p, len) == -1)
+ err(1, "munmap(%p)", p);
+ close(fd);
+}
+
+void *
+thr(void *arg)
+{
+ int i;
+
+ for (i = 0; i < 512; i++) {
+ work(*(int *)arg);
+ }
+ return (0);
+}
+
+int
+main(int argc, char **argv)
+{
+ pthread_t threads[THREADS];
+ int nr[THREADS];
+ int i, n, r;
+
+// printf("Address start 0x%x, address end 0x%x, pages %d\n",
+// STARTADDR, STARTADDR + ADRSPACE, ADRSPACE>>PAGE_SHIFT);
+ n = arc4random() % THREADS + 1;
+ for (i = 0; i < n; i++) {
+ nr[i] = i;
+ if ((r = pthread_create(&threads[i], NULL, thr, (void *)&nr[i])) != 0)
+ err(1, "pthread_create(): %s\n", strerror(r));
+ }
+
+ for (i = 0; i < n; i++) {
+ if (pthread_join(threads[i], NULL) != 0)
+ err(1, "pthread_join(%d)", i);
+ }
+
+ return (0);
+}
Added: projects/stress2/misc/mmap3.sh
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ projects/stress2/misc/mmap3.sh Wed Feb 18 19:02:51 2009 (r188758)
@@ -0,0 +1,159 @@
+#!/bin/sh
+
+#
+# Copyright (c) 2009 Peter Holm <pho at FreeBSD.org>
+# 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.
+#
+# $FreeBSD$
+#
+
+# Variation of mmap2.sh with focus on random arguments for mprotect()
+
+odir=`pwd`
+cd /tmp
+sed '1,/^EOF/d' < $odir/$0 > mmap3.c
+cc -o mmap3 -Wall mmap3.c -lpthread
+rm -f mmap3.c
+
+for i in `jot 20`; do
+ ./mmap3
+done
+for i in `jot 100`; do
+ ./mmap3 random
+done
+rm -f mmap3 mmap3.core /tmp/mmap.0*
+exit
+
+EOF
+/*
+ Stress mmap by having max 18 threads mapping random areas within
+ a 100 Mb range.
+ */
+#include <sys/types.h>
+#include <err.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <pthread.h>
+#include <sys/mman.h>
+#include <sys/param.h>
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+
+#define THREADS 100
+#define STARTADDR 0x50000000U
+#define ADRSPACE 0x06400000U /* 100 Mb */
+
+static int
+ra;
+
+void
+trash(void *p)
+{
+ mprotect(p, 0x570e3d38, 0x2c8fd54f);
+
+ if (ra) {
+ madvise((void *)arc4random(), arc4random(), arc4random());
+ mprotect((void *)arc4random(), arc4random(), arc4random());
+ msync((void *)arc4random(), arc4random(), arc4random());
+ }
+
+}
+
+void
+work(int nr)
+{
+ int fd, m;
+ void *p;
+ size_t len;
+ char path[128];
+
+ p = (void *)STARTADDR;
+ len = ADRSPACE;
+
+ sprintf(path, "/tmp/mmap.%06d.%04d", getpid(), nr);
+ if ((fd = open(path, O_CREAT | O_TRUNC | O_RDWR, 0622)) == -1)
+ err(1,"open()");
+ if (ftruncate(fd, len) == -1)
+ err(1, "ftruncate");
+ if ((p = mmap(p, len, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0)) ==
+ MAP_FAILED) {
+ if (errno == ENOMEM)
+ return;
+ err(1, "mmap()");
+ }
+ if (unlink(path) == -1)
+ err(1, "unlink(%s)", path);
+
+ trash(p);
+
+ m = arc4random() % 10;
+ if (madvise(p, len, m) == -1)
+ warn("madvise(%p, %d, %d)", p, len, m);
+ if (mprotect(p, trunc_page(arc4random() % len), PROT_READ) == -1 )
+ err(1, "mprotect failed with error:");
+ if (msync(p, 0, MS_SYNC) == -1)
+ err(1, "msync(%p)", p);
+ if (munmap(p, len) == -1)
+ err(1, "munmap(%p)", p);
+ close(fd);
+}
+
+void *
+thr(void *arg)
+{
+ int i;
+
+ for (i = 0; i < 512; i++) {
+ work(*(int *)arg);
+ }
+ return (0);
+}
+
+int
+main(int argc, char **argv)
+{
+ pthread_t threads[THREADS];
+ int nr[THREADS];
+ int i, n, r;
+
+ n = arc4random() % 14 + 5;
+ ra = argc != 1;
+// printf("Address start 0x%x, address end 0x%x, pages %d, n %d\n",
+// STARTADDR, STARTADDR + ADRSPACE, ADRSPACE>>PAGE_SHIFT, n);
+ for (i = 0; i < n; i++) {
+ nr[i] = i;
+ if ((r = pthread_create(&threads[i], NULL, thr, (void *)&nr[i])) != 0)
+ err(1, "pthread_create(): %s\n", strerror(r));
+ }
+
+ for (i = 0; i < n; i++) {
+ if (pthread_join(threads[i], NULL) != 0)
+ err(1, "pthread_join(%d)", i);
+ }
+
+ return (0);
+}
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