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156 lines
3.3 KiB
Bash
Executable file
156 lines
3.3 KiB
Bash
Executable file
#!/bin/sh
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#
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# Copyright (c) 2012 Peter Holm <pho@FreeBSD.org>
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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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# Test scenario idea by kib@
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# "panic: double fault" seen due to recursion
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[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
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. ../default.cfg
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mount | grep -q procfs || mount -t procfs procfs /proc
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here=`pwd`
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cd /tmp
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sed '1,/^EOF/d' < $here/$0 > procfs4.c
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mycc -o procfs4 -Wall -Wextra -O2 procfs4.c || exit 1
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rm -f procfs4.c
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cd $here
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su $testuser -c /tmp/procfs4
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e=$?
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rm -f /tmp/procfs4
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exit $e
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EOF
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#include <sys/param.h>
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#include <sys/ioctl.h>
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#include <sys/param.h>
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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 <errno.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 <time.h>
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#include <unistd.h>
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#define LOOPS 1000
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#define MAXRUN 1200
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#define PARALLEL 10
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char *files[] = {
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"cmdline",
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"ctl",
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"dbregs",
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"etype",
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"file",
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"fpregs",
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"map",
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"mem",
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"note",
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"notepg",
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"osrel",
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"regs",
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"rlimit",
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"status"
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};
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void
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test(void)
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{
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pid_t p;
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int fd, i, j, n, opens;
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char path[128];
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for (i = 0; i < 64; i++) {
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if ((p = fork()) == 0) {
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setproctitle("Sleeper");
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usleep(20000);
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usleep(arc4random() % 200);
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for (j = 0; j < 10000; j++)
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getpid();
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_exit(0);
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}
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opens = 0;
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setproctitle("load");
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for (j = 0; j < 14; j++) {
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snprintf(path, sizeof(path), "/proc/%d/%s", p, files[j]);
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if ((fd = open(path, O_RDWR)) == -1)
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if ((fd = open(path, O_RDONLY)) == -1)
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continue;
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ioctl(fd, FIONREAD, &n);
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if (ioctl(fd, FIONBIO, &n) != -1)
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opens++;
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close(fd);
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}
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kill(p, SIGHUP);
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#if 0
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if (opens < 1)
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fprintf(stderr, "Warn %d open(s) for pid %d\n", opens, getpid());
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#endif
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}
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for (i = 0; i < 64; i++)
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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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time_t start;
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int e, i, j;
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e = 0;
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start = time(NULL);
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for (i = 0; i < LOOPS; i++) {
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for (j = 0; j < PARALLEL; j++) {
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if (fork() == 0)
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test();
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}
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for (j = 0; j < PARALLEL; j++)
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wait(NULL);
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usleep(10000);
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if (time(NULL) - start > MAXRUN) {
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fprintf(stderr, "FAIL Timeout\n");
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e = 1;
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break;
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}
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}
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return (e);
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}
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