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160 lines
4 KiB
Bash
Executable file
160 lines
4 KiB
Bash
Executable file
#!/bin/sh
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#
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# Copyright (c) 2011 Peter Holm <pho@FreeBSD.org>
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
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# Test that fails on various non FreeBSD file systems.
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# 3.13.0-74-generic #118-Ubuntu SMP: Mismatch @ count 214, 0 != 123
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# OK on OS X (Darwin Kernel Version 15.5.0)
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# Scanario by: Michael Ubell ubell mindspring com.
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. ../default.cfg
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mount | grep $mntpoint | grep -q /dev/md && umount -f $mntpoint
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mdconfig -l | grep -q md$mdstart && mdconfig -d -u $mdstart
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sed '1,/^EOF/d' < $0 > /tmp/overlap.c
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mycc -o /tmp/overlap -Wall -Wextra -O2 /tmp/overlap.c -lpthread || exit 1
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rm -f /tmp/overlap.c
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size="1g"
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mdconfig -a -t swap -s $size -u $mdstart || exit 1
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bsdlabel -w md$mdstart auto
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newfs -U md${mdstart}$part > /dev/null
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mount /dev/md${mdstart}$part $mntpoint
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chmod 777 $mntpoint
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(cd $mntpoint; /tmp/overlap)
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s=$?
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while mount | grep $mntpoint | grep -q /dev/md; do
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umount $mntpoint || sleep 1
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done
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mdconfig -d -u $mdstart
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rm -f /tmp/overlap
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exit $s
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EOF
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#include <err.h>
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#include <fcntl.h>
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#include <pthread.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/uio.h>
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#include <unistd.h>
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char file[128];
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int bsiz, siz;
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void
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handler(int s __unused)
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{
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_exit(0);
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}
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void *
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writer(void *arg __unused) {
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int fdes, count;
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ssize_t nwrite;
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int *buf;
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if ((fdes = open(file, O_RDWR|O_CREAT, 0664)) == -1)
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err(1, "open(%s)", file);
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count = 0;
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buf = malloc(bsiz * sizeof(int));
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buf[0] = buf[bsiz - 1] = 0;
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while ((nwrite = pwrite(fdes, buf, siz, 0)) != -1) {
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if (nwrite < siz)
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err(1, "pwrite @ count %d, nwrite %zd", count, nwrite);
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buf[0] = ++buf[bsiz - 1];
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count++;
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}
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err(1, "pwrite()");
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}
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void *
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reader(void *arg __unused) {
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int fdes, count;
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ssize_t nread;
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int *buf;
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if ((fdes = open(file, O_RDWR|O_CREAT, 0664)) == -1)
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err(1, "open(%s)", file);
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count = 0;
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buf = malloc(bsiz * sizeof(int));
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while ((nread = pread(fdes, buf, siz, 0)) == 0)
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continue;
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do {
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if (nread < siz)
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err(1, "pread @ count %d, nread %zd", count, nread);
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if (buf[0] != buf[bsiz - 1]) {
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printf("Mismatch @ count %d, %d != %d\n",
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count, buf[0], buf[bsiz - 1]);
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abort();
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}
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count++;
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} while ((nread = pread(fdes, buf, siz, 0)) != -1);
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err(1, "pread()");
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}
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int
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main(int argc, char **argv) {
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pthread_t rp, wp;
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int ret;
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void *exitstatus;
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snprintf(file, sizeof(file), "test.%0d5", getpid());
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siz = 65536;
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if (argc == 2)
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siz = atoi(argv[1]);
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bsiz = siz / sizeof(int);
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signal(SIGALRM, handler);
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alarm(300);
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if ((ret = pthread_create(&wp, NULL, writer, NULL)) != 0)
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errc(1, ret, "pthread_create");
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if ((ret = pthread_create(&rp, NULL, reader, NULL)) != 0)
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errc(1, ret, "pthread_create");
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pthread_join(rp, &exitstatus);
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pthread_join(wp, &exitstatus);
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unlink(file);
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return (0);
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}
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