133 lines
3.1 KiB
Bash
Executable File
133 lines
3.1 KiB
Bash
Executable File
#!/bin/sh
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#
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# Copyright (c) 2016 EMC Corp.
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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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# Stress vm object collapse.
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# "panic: backing_object 0xfffff800a018f420 was somehow re-referenced during
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# collapse!" seen with uma_zalloc_arg fail point enabled.
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. ../default.cfg
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dir=/tmp
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odir=`pwd`
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cd $dir
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sed '1,/^EOF/d' < $odir/$0 > $dir/pipe.c
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mycc -o pipe -Wall -Wextra -O0 -g pipe.c || exit 1
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rm -f pipe.c
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cd $odir
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daemon sh -c '(cd ../testcases/swap; ./swap -t 10m -i 20)' > /dev/null 2>&1
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sleep 1
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e=0
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export e
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start=`date '+%s'`
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while [ $((`date '+%s'` - start)) -lt 300 ]; do
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for i in `jot $(sysctl -n hw.ncpu)`; do
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/tmp/pipe &
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pids="$pids $!"
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done
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for i in $pids; do
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wait $i
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[ $? -ne 0 ] && e=$((e + 1))
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done
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pids=""
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[ $e -ne 0 ] && break
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done
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while pgrep -q swap; do
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pkill -9 swap
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done
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rm -rf /tmp/pipe pipe.core
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exit $e
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EOF
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#include <sys/wait.h>
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#include <err.h>
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#include <stdio.h>
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#include <time.h>
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#include <unistd.h>
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#define PIPES 64
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#define RUNTIME 300
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int
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test(void)
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{
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int c, e, status;
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int fds[PIPES][2];
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int i;
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for (i = 0; i < PIPES; i++) {
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if (pipe(fds[i]) == -1)
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err(1, "pipe");
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}
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c = e = 0;
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if (write(fds[0][1], &c, sizeof(c)) != sizeof(c))
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err(1, "pipe write");
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for (i = 0; i < PIPES; i++) {
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if (fork() == 0) {
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close(fds[i][1]);
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if (read(fds[i][0], &c, sizeof(c)) != sizeof(c))
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err(1, "pipe read");
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#if defined(DEBUG)
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fprintf(stderr, "pid %d: i = %d: read %d\n", getpid(),
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i, c);
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#endif
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c++;
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if (i != PIPES - 1)
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if (write(fds[i + 1][1], &c, sizeof(c)) !=
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sizeof(c))
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err(1, "pipe write");
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_exit(0);
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}
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close(fds[i][0]);
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close(fds[i][1]);
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}
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for (i = 0; i < PIPES; i++) {
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wait(&status);
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e += status == 0 ? 0 : 1;
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}
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return (e);
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}
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int
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main(void)
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{
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time_t start;
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int e;
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e = 0;
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start = time(NULL);
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while (time(NULL) - start < RUNTIME && e == 0)
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e = test();
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return (e);
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}
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