summaryrefslogtreecommitdiff
path: root/sys/arch/i386/i386/machdep.c
diff options
context:
space:
mode:
Diffstat (limited to 'sys/arch/i386/i386/machdep.c')
-rw-r--r--sys/arch/i386/i386/machdep.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/sys/arch/i386/i386/machdep.c b/sys/arch/i386/i386/machdep.c
index ad3a266aa0f..2969cc3413c 100644
--- a/sys/arch/i386/i386/machdep.c
+++ b/sys/arch/i386/i386/machdep.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: machdep.c,v 1.452 2009/06/03 21:30:19 beck Exp $ */
+/* $OpenBSD: machdep.c,v 1.453 2009/06/15 17:01:26 beck Exp $ */
/* $NetBSD: machdep.c,v 1.214 1996/11/10 03:16:17 thorpej Exp $ */
/*-
@@ -547,6 +547,11 @@ setup_buffers()
if (bufpages == 0)
bufpages = atop(avail_end) * bufcachepercent / 100;
+ /* Restrict to at most 25% filled kvm */
+ if (bufpages >
+ (VM_MAX_KERNEL_ADDRESS-VM_MIN_KERNEL_ADDRESS) / PAGE_SIZE / 4)
+ bufpages = (VM_MAX_KERNEL_ADDRESS-VM_MIN_KERNEL_ADDRESS) /
+ PAGE_SIZE / 4;
}
/*