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152 lines
3.7 KiB
Bash
Executable file
152 lines
3.7 KiB
Bash
Executable file
#!/bin/sh
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#
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# Copyright (c) 2015 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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# selfd regression test attempt for r285310. Not reproduced.
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# Watchdog fired seen: https://people.freebsd.org/~pho/stress/log/selfd.txt
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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/selfd.c
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mycc -o selfd -Wall -Wextra -O0 -g selfd.c -lpthread || exit 1
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rm -f selfd.c
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cd $odir
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rm -rf /tmp/stressX.control
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daemon sh -c "(cd ../testcases/swap; ./swap -t 10m -i 20 -l 100)" > \
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/dev/null 2>&1
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sleep 2
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/tmp/selfd
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s=$?
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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/selfd
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exit $s
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EOF
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#include <sys/param.h>
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#include <sys/select.h>
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#include <sys/stat.h>
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#include <sys/wait.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <pthread.h>
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#include <sched.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 <time.h>
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#include <unistd.h>
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static pthread_barrier_t barr;
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#define PARALLEL 16
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#define PIPES 32
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#define RUNTIME (5 * 60)
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static void
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handler(int s __unused)
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{
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}
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static void
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test(void)
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{
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fd_set rset, tmpl;
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struct sigaction sa;
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struct timeval timeout;
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time_t start;
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int fds[PIPES][2], i, n, r;
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r = pthread_barrier_wait(&barr);
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if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD)
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errc(1, r, "pthread_barrier_wait");
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FD_ZERO(&tmpl);
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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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FD_SET(fds[i][0], &tmpl);
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}
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sa.sa_handler = handler;
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sigemptyset(&sa.sa_mask);
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sa.sa_flags = 0;
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if (sigaction(SIGALRM, &sa, NULL) == -1)
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err(1, "sigaction");
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start = time(NULL);
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while ((time(NULL) - start) < 10) {
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rset = tmpl;
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timeout.tv_sec = 0;
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timeout.tv_usec = arc4random() % 10000 + 100;
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n = arc4random() % PIPES;
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ualarm(arc4random() % 10000 + 100, 0);
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write(fds[n][1], "a", 1);
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if ((n = select(PIPES, &rset, NULL, NULL, &timeout)) < 0)
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if (errno != EINTR)
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err(1, "select()");
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ualarm(0, 0);
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}
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_exit(0);
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}
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int
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main(void)
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{
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pthread_barrierattr_t attr;
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time_t start;
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int i, r;
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if ((r = pthread_barrierattr_init(&attr)) != 0)
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errc(1, r, "pthread_barrierattr_init");
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if ((r = pthread_barrierattr_setpshared(&attr,
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PTHREAD_PROCESS_SHARED)) != 0)
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errc(1, r, "pthread_barrierattr_setpshared");
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if ((r = pthread_barrier_init(&barr, &attr, PARALLEL)) != 0)
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errc(1, r, "pthread_barrier_init");
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start = time(NULL);
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while ((time(NULL) - start) < RUNTIME) {
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for (i = 0; i < PARALLEL; i++)
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if (fork() == 0)
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test();
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for (i = 0; i < PARALLEL; i++)
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wait(NULL);
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}
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return (0);
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}
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