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Diffstat (limited to 'tools/test/stress2/misc/sigstop2.sh')
-rwxr-xr-x | tools/test/stress2/misc/sigstop2.sh | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/tools/test/stress2/misc/sigstop2.sh b/tools/test/stress2/misc/sigstop2.sh new file mode 100755 index 000000000000..286936c2fb1a --- /dev/null +++ b/tools/test/stress2/misc/sigstop2.sh @@ -0,0 +1,144 @@ +#!/bin/sh + +# +# SPDX-License-Identifier: BSD-2-Clause-FreeBSD +# +# Copyright (c) 2018 Dell EMC Isilon +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE +# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. +# + +# No problems seen. + +. ../default.cfg + +dir=/tmp +odir=`pwd` +cd $dir +sed '1,/^EOF/d' < $odir/$0 > $dir/sigstop2.c +mycc -o sigstop2 -Wall -Wextra -O0 -g sigstop2.c || exit 1 +rm -f sigstop2.c + +$dir/sigstop2 +s=$? +[ -f sigstop2.core -a $s -eq 0 ] && + { ls -l sigstop2.core; mv sigstop2.core $dir; s=1; } + +rm -rf $dir/sigstop2 +exit $s + +EOF +#include <sys/param.h> +#include <sys/mman.h> +#include <sys/stat.h> +#include <sys/wait.h> + +#include <machine/atomic.h> + +#include <err.h> +#include <errno.h> +#include <fcntl.h> +#include <signal.h> +#include <stdio.h> +#include <stdlib.h> +#include <time.h> +#include <unistd.h> + +static volatile u_int *share; + +#define N 100 +#define PARALLEL 4 +#define RUNTIME (1 * 60) +#define SYNC 0 + +static void +test(void) +{ + pid_t pids[N]; + int i; + + atomic_add_int(&share[SYNC], 1); + while (share[SYNC] != PARALLEL) + ; + + for (i = 0; i < N; i++) { + if ((pids[i] = fork()) == 0) { + for (;;) + pause(); + _exit(0); + } + } + + for (i = 0; i < N; i++) + if (kill(pids[i], SIGSTOP) == -1) + err(1, "kill(%d)", pids[i]); + for (i = 0; i < N; i++) + if (kill(pids[i], SIGINT) == -1) + err(1, "kill(%d)", pids[i]); + for (i = 0; i < N; i++) + if (kill(pids[i], SIGKILL) == -1) + err(1, "kill(%d)", pids[i]); + for (i = 0; i < N; i++) + if (waitpid(pids[i], NULL, 0) != pids[i]) + err(1, "waitpid(%d)", pids[i]); + + _exit(0); +} + +int +main(void) +{ + pid_t pids[PARALLEL]; + size_t len; + time_t start; + int e, i, status; + + e = 0; + len = PAGE_SIZE; + if ((share = mmap(NULL, len, PROT_READ | PROT_WRITE, + MAP_ANON | MAP_SHARED, -1, 0)) == MAP_FAILED) + err(1, "mmap"); + + start = time(NULL); + while ((time(NULL) - start) < RUNTIME && e == 0) { + share[SYNC] = 0; + for (i = 0; i < PARALLEL; i++) { + if ((pids[i] = fork()) == 0) + test(); + if (pids[i] == -1) + err(1, "fork()"); + } + for (i = 0; i < PARALLEL; i++) { + if (waitpid(pids[i], &status, 0) == -1) + err(1, "waitpid(%d)", pids[i]); + if (status != 0) { + if (WIFSIGNALED(status)) + fprintf(stderr, + "pid %d exit signal %d\n", + pids[i], WTERMSIG(status)); + } + e += status == 0 ? 0 : 1; + } + } + + return (e); +} |