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4d846d260e
The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch up to that fact and revert to their recommended match of BSD-2-Clause. Discussed with: pfg MFC After: 3 days Sponsored by: Netflix
125 lines
3.3 KiB
Bash
Executable File
125 lines
3.3 KiB
Bash
Executable File
#!/bin/sh
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#
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# SPDX-License-Identifier: BSD-2-Clause
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#
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# Copyright (c) 2016 Mark Johnston <markj@FreeBSD.org>
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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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# Reproduce problem reported as PR 211531.
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# https://reviews.freebsd.org/D7398
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# "panic: __rw_wlock_hard: recursing but non-recursive rw unp_link_rwlock @
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# ../../../kern/uipc_usrreq.c:655" seen:
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# https://people.freebsd.org/~pho/stress/log/unix_socket_detach.txt
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# Fixed in r303855.
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. ../default.cfg
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cd /tmp
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cat > unix_socket_detach.c <<EOF
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <sys/un.h>
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#include <err.h>
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#include <fcntl.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 <string.h>
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#include <unistd.h>
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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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int
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main(void)
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{
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struct sockaddr_un sun;
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char *file;
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pid_t pid;
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int sd, flags, one;
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file = "unix_socket_detach.socket";
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memset(&sun, 0, sizeof(sun));
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sun.sun_family = AF_LOCAL;
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sun.sun_len = sizeof(sun);
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snprintf(sun.sun_path, sizeof(sun.sun_path), "%s", file);
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signal(SIGALRM, handler);
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pid = fork();
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if (pid < 0)
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err(1, "fork");
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if (pid == 0) {
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alarm(300);
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for (;;) {
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sd = socket(PF_LOCAL, SOCK_STREAM, 0);
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if (sd < 0)
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err(1, "socket");
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one = 1;
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if (setsockopt(sd, SOL_SOCKET, SO_REUSEADDR, &one,
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sizeof(one)) < 0)
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err(1, "setsockopt");
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if (bind(sd, (struct sockaddr *)&sun, sizeof(sun)) < 0) {
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close(sd);
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continue;
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}
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if (listen(sd, 10) != 0)
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err(1, "listen");
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usleep(random() % 10);
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(void)close(sd);
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(void)unlink(file);
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}
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} else {
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alarm(300);
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for (;;) {
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sd = socket(PF_LOCAL, SOCK_STREAM, 0);
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if (sd < 0)
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err(1, "socket");
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if ((flags = fcntl(sd, F_GETFL, 0)) < 0)
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err(1, "fcntl(F_GETFL)");
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flags |= O_NONBLOCK;
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if (fcntl(sd, F_SETFL, flags) < 0)
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err(1, "fcntl(F_SETFL)");
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(void)connect(sd, (struct sockaddr *)&sun, sizeof(sun));
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usleep(random() % 10);
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(void)close(sd);
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}
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}
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return (0);
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}
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EOF
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mycc -o unix_socket_detach -Wall -Wextra -O2 -g unix_socket_detach.c || exit 1
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rm -f unix_socket_detach.socket
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/tmp/unix_socket_detach
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s=$?
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rm -f unix_socket_detach.c unix_socket_detach unix_socket_detach.socket
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exit $s
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