2 * Copyright (c) 2000-2001 Silicon Graphics, Inc.
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation.
9 * This program is distributed in the hope that it would be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write the Free Software Foundation,
16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
21 * usemem: allocate and lock a chunk of memory effectively removing
22 * it from the usable physical memory range
31 #include <sys/types.h>
39 fprintf(stderr,"Usage: %s <mb>\n", argv0);
46 printf("*** signal\n");
50 main(int argc, char *argv[])
55 if (argc!=2) usage(argv[0]);
57 if (mb<=0) usage(argv[0]);
59 buf=malloc(mb*1024*1024);
64 if (mlock(buf,mb*1024*1024)) {
69 printf("%s: %d mb locked - interrupt to release\n", argv[0], mb);
70 signal(SIGINT, signalled);
72 printf("%s: %d mb unlocked\n", argv[0], mb);