+/*
+ * GPL HEADER START
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
+ */
+
#include <sys/types.h>
#include <unistd.h>
#include <stdio.h>
mem = calloc(numchunk, sizeof(*mem));
if (mem == NULL) {
fprintf(stderr, "error allocating initial chunk array\n");
- exit(1);
+ exit(-1);
}
alloc = CHUNK;
printf("[%d] allocating %lld kbytes in %u kbyte chunks\n",
getpid(), kbtotal, alloc);
- for (i = kballoc = 0; i < numchunk; i++, kballoc += alloc) {
+ for (i = kballoc = 0; i < numchunk && alloc > 0; i++, kballoc += alloc){
if (kbtotal - kballoc < alloc)
alloc = kbtotal - kballoc;
- tmp = mem[i] = malloc(alloc * 1024);
- if (tmp == NULL) {
+ while (alloc > 0 && (mem[i] = malloc(alloc * 1024)) == NULL) {
fprintf(stderr, "malloc(%u) failed (%lld/%lld)\n",
alloc * 1024, kballoc, kbtotal);
- } else {
- printf("touching %p (%lld/%lld)\n",
- tmp, kballoc, kbtotal);
- for (j = 0; j < alloc; j += 4) {
- for (k = 0, sum = 0; k < 4095; k++, tmp++)
- sum += *tmp;
- *tmp = sum;
- }
+ alloc /= 2;
+ }
+ if (alloc == 0)
+ break;
+
+ printf("touching %p ([%lld-%lld]/%lld)\n", mem[i], kballoc,
+ kballoc + alloc - 1, kbtotal);
+ for (j = 0, tmp = mem[i]; j < alloc; j += 4) {
+ for (k = 0, sum = 0; k < 4095; k++, tmp++)
+ sum += *tmp;
+ *tmp = sum;
}
}
+ if (kballoc == 0)
+ exit(-2);
+
+ kbtotal = kballoc;
printf("touched %lld kbytes\n", kballoc);
alloc = CHUNK;
if (*tmp != sum) {
fprintf(stderr, "sum %x != %x at %p\n",
*tmp, sum, tmp - 4092);
- rc = 1;
+ rc++;
}
}
}