149 lines
3.4 KiB
Bash
Executable File
149 lines
3.4 KiB
Bash
Executable File
#!/bin/sh
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#
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# SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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#
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# Copyright (c) 2019 Peter Holm
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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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# pipe(2) tests.
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# "panic: vm_page_dequeue: queued unlocked page 0xfffffe0019a73518" seen.
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# Reported by syzkaller
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# Fixed by r354400
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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/pipe3.c
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mycc -o pipe3 -Wall -Wextra -O0 -g pipe3.c || exit 1
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rm -f pipe3.c
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cd $odir
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(cd ../testcases/swap; ./swap -t 5m -i 20 -l 100) &
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sleep 1
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for i in `jot 25`; do
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/tmp/pipe3 &
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done
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while pkill -0 pipe3; do sleep 2; done
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while pkill -9 swap; do sleep 1; done
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wait
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rm -rf /tmp/pipe3
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exit 0
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EOF
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <err.h>
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#include <signal.h>
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#include <stdbool.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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#define PARALLEL 64
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#define RUNTIME (5 * 60)
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static void
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handler(int i __unused) {
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_exit(0);
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}
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void
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test(void)
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{
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int fds[2], r;
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char c;
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if (pipe(fds) == -1)
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err(1, "pipe");
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if (fork() == 0) {
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signal(SIGALRM, handler);
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ualarm(1 + arc4random() % 10000, 0);
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close(fds[1]);
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if ((r = write(fds[0], &c, sizeof(c))) != sizeof(c))
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if (r == -1)
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err(1, "pipe write");
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_exit(0);
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}
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signal(SIGALRM, handler);
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ualarm(1 + arc4random() % 10000, 0);
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close(fds[0]);
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if ((r = read(fds[1], &c, sizeof(c))) != sizeof(c))
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if (r == -1)
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err(1, "pipe read");
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wait(NULL);
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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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pid_t pids[PARALLEL], rpid;
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time_t start;
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int i, running, status;
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bool done;
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for (i = 0; i < PARALLEL; i++)
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pids[i] = 0;
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running = 0;
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start = time(NULL);
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for (;;) {
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done = (time(NULL) - start) >= RUNTIME;
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for (i = 0; i < PARALLEL; i++) {
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if (pids[i] == 0 && !done) {
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if ((pids[i] = fork()) == 0)
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test();
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if (pids[i] == -1)
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err(1, "fork()");
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running++;
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}
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}
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for (i = 0; i < PARALLEL; i++) {
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if (pids[i] != 0) {
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if ((rpid = waitpid(pids[i], &status,
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WNOHANG)) == -1)
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err(1, "waitpid(%d)", pids[i]);
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if (rpid == 0)
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continue;
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if (rpid != pids[i])
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err(1, "waitpid(%d)", pids[i]);
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running --;
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pids[i] = 0;
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break;
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}
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}
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if (running == 0 && done)
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break;
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usleep(100);
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}
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return (0);
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}
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