4 # Copyright (c) 2013 Peter Holm <pho@FreeBSD.org>
7 # Redistribution and use in source and binary forms, with or without
8 # modification, are permitted provided that the following conditions
10 # 1. Redistributions of source code must retain the above copyright
11 # notice, this list of conditions and the following disclaimer.
12 # 2. Redistributions in binary form must reproduce the above copyright
13 # notice, this list of conditions and the following disclaimer in the
14 # documentation and/or other materials provided with the distribution.
16 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 # ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 # "panic: kmem_malloc(4096): kmem_map too small" seen.
32 [ $((`sysctl -n vm.kmem_size` / 1024 / 1024 / 1024)) -eq 0 ] && exit 0
37 sed '1,/^EOF/d' < $odir/$0 > $dir/shm_open.c
38 mycc -o shm_open -Wall -Wextra -O2 -g shm_open.c || exit 1
42 v1=`vmstat -m | awk '/shmfd/{gsub("K", ""); print $3}'`
43 su $testuser -c /tmp/shm_open
44 v2=`vmstat -m | awk '/shmfd/{gsub("K", ""); print $3}'`
46 [ $v2 -gt 10 ] && { echo "shmfd leaked ${v2}K"; s=1; } || s=0
69 for (i = 0; i < 500000; i++) {
70 sprintf(name, "/testing.%06d.%06d", pid, i);
72 if ((fd = shm_open(name, O_RDWR | O_CREAT, 0644)) == -1)
74 if (ftruncate(fd, len) == -1)
78 for (i = 0; i < 500000; i++) {
79 sprintf(name, "/testing.%06d.%06d", pid, i);
80 if (shm_unlink(name) == -1)
81 err(1, "shm_unlink(%s)", name);