1#!/bin/sh 2 3# 4# SPDX-License-Identifier: BSD-2-Clause 5# 6# Copyright (c) 2021 Peter Jeremy <peterj@FreeBSD.org> 7# 8# Redistribution and use in source and binary forms, with or without 9# modification, are permitted provided that the following conditions 10# are met: 11# 1. Redistributions of source code must retain the above copyright 12# notice, this list of conditions and the following disclaimer. 13# 2. Redistributions in binary form must reproduce the above copyright 14# notice, this list of conditions and the following disclaimer in the 15# documentation and/or other materials provided with the distribution. 16# 17# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27# SUCH DAMAGE. 28# 29# Unkillable process in "vm map (user)" seen. 30# https://people.freebsd.org/~pho/stress/log/kostik1070.txt 31# Fixed by: r327468 32 33# OOM killing: https://people.freebsd.org/~pho/stress/log/chain.txt 34 35if [ ! -f /usr/local/include/libmill.h -o \ 36 ! -x /usr/local/lib/libmill.so ]; then 37 echo "ports/devel/libmill needed." 38 exit 0 39fi 40 41. ../default.cfg 42 43cat > /tmp/chain.c <<EOF 44#include <stdio.h> 45#include <stdlib.h> 46#include <libmill.h> 47 48coroutine void f(chan left, chan right) { 49 chs(left, int, 1 + chr(right, int)); 50} 51 52int 53main(int argc __unused, char **argv) 54{ 55 int i, n = argv[1] ? atoi(argv[1]) : 10000; 56 chan leftmost = chmake(int, 0); 57 chan left = NULL; 58 chan right = leftmost; 59 60 alarm(600); 61 for (i = 0; i < n; i++) { 62 left = right; 63 right = chmake(int, 0); 64 go(f(left, right)); 65 } 66 chs(right, int, 0); 67 i = chr(leftmost, int); 68 printf("result = %d\n", i); 69 return(0); 70} 71EOF 72 73mycc -o /tmp/chain -I /usr/local/include -L /usr/local/lib -Wall -Wextra \ 74 -O2 -g /tmp/chain.c -lmill || exit 1 75limits -c 0 /tmp/chain 1000000 76rm -f /tmp/chain /tmp/chain.c 77exit 0 78