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sanity check bufcache before using it

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This commit is contained in:
lukem 1999-06-01 00:40:48 +00:00
parent 3da956dff3
commit 6a62a9cff3
1 changed files with 7 additions and 3 deletions
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10
sys/kern/kern_allocsys.c
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@ -1,4 +1,4 @@
/* $NetBSD: kern_allocsys.c,v 1.3 1999/05/21 00:05:12 thorpej Exp $ */
/* $NetBSD: kern_allocsys.c,v 1.4 1999/06/01 00:40:48 lukem Exp $ */
/*-
* Copyright (c) 1999 The NetBSD Foundation, Inc.
@ -161,9 +161,13 @@ allocsys(v, mdcallback)
* the remaining.
*/
if (bufpages == 0) {
if (bufcache != 0)
if (bufcache != 0) {
if (bufcache < 5 || bufcache > 95)
panic("bufcache is out of range (%d)\n",
bufcache);
bufpages = physmem / CLSIZE * bufcache / 100;
else {
} else {
if (physmem < btoc(2 * 1024 * 1024))
bufpages = physmem / (10 * CLSIZE);
else