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Diffstat (limited to 'tools/test/stress2/misc/datamove4.sh')
| -rwxr-xr-x | tools/test/stress2/misc/datamove4.sh | 251 |
1 files changed, 251 insertions, 0 deletions
diff --git a/tools/test/stress2/misc/datamove4.sh b/tools/test/stress2/misc/datamove4.sh new file mode 100755 index 000000000000..4b4726b8dace --- /dev/null +++ b/tools/test/stress2/misc/datamove4.sh @@ -0,0 +1,251 @@ +#!/bin/sh + +# +# Copyright (c) 2012 Peter Holm <pho@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. +# + +# Variation of the datamove2.sh, using TMPFS +# Deadlock seen +# https://people.freebsd.org/~pho/stress/log/datamove4.txt + +# panic: elf32_putnote: Note type 10 changed as we read it (2236 > 2220)... +# https://people.freebsd.org/~pho/stress/log/datamove4-2.txt +# Fixed by r288944. + +[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 + +. ../default.cfg + +here=`pwd` +cd /tmp +sed '1,/^EOF/d' < $here/$0 > datamove4.c +mycc -o datamove4 -Wall -Wextra -O2 -g datamove4.c +rm -f datamove4.c + +mount | grep -q "$mntpoint " && umount $mntpoint +mount -t tmpfs tmpfs $mntpoint +chmod 777 $mntpoint + +for i in `jot 5`; do + su $testuser -c "cd $mntpoint; /tmp/datamove4" +done +while mount | grep -q $mntpoint; do + umount -f $mntpoint > /dev/null 2>&1 +done + +rm -rf /tmp/datamove4 +exit 0 +EOF +/*- + * Copyright (c) 2006, Stephan Uphoff <ups@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 unmodified, 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 ``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 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. + */ + +#include <err.h> +#include <fcntl.h> +#include <stdio.h> +#include <stdlib.h> +#include <sys/mman.h> +#include <sys/stat.h> +#include <sys/types.h> +#include <sys/wait.h> +#include <unistd.h> + +int prepareFile(char *filename, int *fdp); +int mapBuffer (char **bufferp, int fd1, int fd2); +int startIO (int fd, char *buffer); + +int pagesize; + +#define FILESIZE (32*1024) +char wbuffer [FILESIZE]; + +/* Create a FILESIZE sized file - then remove file data from the cache */ +int +prepareFile(char *filename, int *fdp) +{ + int fd; + int len; + int status; + void *addr; + + fd = open(filename, O_CREAT | O_TRUNC | O_RDWR, S_IRWXU); + if (fd == -1) { + perror(filename); + return fd; + } + len = write(fd, wbuffer, FILESIZE); + if (len < 0) { + perror("Write failed"); + return 1; + } + status = fsync(fd); + if (status != 0) { + perror("fsync failed"); + return 1; + } + addr = mmap(NULL, FILESIZE, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0); + if (addr == MAP_FAILED) { + perror("Mmap failed"); + return 1; + } + status = msync(addr, FILESIZE, MS_INVALIDATE | MS_SYNC); + if (status != 0) { + perror("Msync failed"); + return 1; + } + if (munmap(addr, FILESIZE) == -1) { + perror("munmap failed"); + return 1; + } + + *fdp = fd; + return 0; +} + +/* mmap a 2 page buffer - first page is from fd1, second page from fd2 */ +int +mapBuffer(char **bufferp, int fd1, int fd2) +{ + void *addr; + char *buffer; + + addr = mmap(NULL, pagesize * 2, PROT_READ | PROT_WRITE, MAP_SHARED, fd1, 0); + if (addr == MAP_FAILED) { + perror("Mmap failed"); + return 1; + } + buffer = addr; + addr = mmap(buffer + pagesize, pagesize, PROT_READ | PROT_WRITE, MAP_FIXED | + MAP_SHARED, fd2, 0); + + if (addr == MAP_FAILED) { + perror("Mmap2 failed"); + return 1; + } + *bufferp = buffer; + return 0; +} + +void +unmapBuffer(char *bufferp) +{ + if (munmap(bufferp, pagesize * 2) == -1) + err(1, "unmap 1. buffer"); + /* + The following unmaps something random, which could trigger: + Program received signal SIGSEGV, Segmentation fault. + free (cp=0x28070000) at /usr/src/libexec/rtld-elf/malloc.c:311 + */ + +#if 0 + if (munmap(bufferp + pagesize * 2, pagesize * 2) == -1) + err(1, "unmap 2. buffer"); +#endif +} + +int +startIO(int fd, char *buffer) +{ + ssize_t len; + + len = write(fd, buffer, 2 * pagesize); + if (len == -1) { + perror("write failed"); + return 1; + } + return 0; +} + +int +main() +{ + + int fdA, fdB, fdDelayA, fdDelayB; + int status; + int i; + char *bufferA, *bufferB; + pid_t pid; + + pagesize = getpagesize(); + + for (i = 0; i < 1000; i++) { + if ((prepareFile("A", &fdA)) + || (prepareFile("B", &fdB)) + || (prepareFile("DelayA", &fdDelayA)) + || (prepareFile("DelayB", &fdDelayB)) + || (mapBuffer(&bufferA, fdDelayA, fdB)) + || (mapBuffer(&bufferB, fdDelayB, fdA))) + exit(1); + + pid = fork(); + + if (pid == 0) { + status = startIO(fdA, bufferA); + exit(status); + } + if (pid == -1) { + perror("fork"); + exit(1); + } + status = startIO(fdB, bufferB); + if (wait(&status) == -1) + err(1, "wait"); + + close(fdA); + close(fdB); + close(fdDelayA); + close(fdDelayB); + unmapBuffer(bufferA); + unmapBuffer(bufferB); + unlink("A"); + unlink("B"); + unlink("DelayA"); + unlink("DelayB"); + } + exit(status); + +} |