[src/netbsd-1-4]: src/sys/arch/macppc/macppc Apply patch (requested by tsubai):

[he <he%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/3c4d409eac30
branches:  netbsd-1-4
changeset: 470036:3c4d409eac30
user:      he <he%NetBSD.org@localhost>
date:      Sat Jan 15 17:04:53 2000 +0000

description:
Apply patch (requested by tsubai):
  Apply last part of fix for "panic: startup: cannot allocate VM
  for buffers" when RAM is > approx. 128MB.

diffstat:

 sys/arch/macppc/macppc/machdep.c |  10 +++++++++-
 1 files changed, 9 insertions(+), 1 deletions(-)

diffs (24 lines):

diff -r 8269b98bf8fa -r 3c4d409eac30 sys/arch/macppc/macppc/machdep.c
--- a/sys/arch/macppc/macppc/machdep.c  Sat Jan 15 16:59:46 2000 +0000
+++ b/sys/arch/macppc/macppc/machdep.c  Sat Jan 15 17:04:53 2000 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: machdep.c,v 1.38.2.4 1999/06/24 16:35:14 perry Exp $   */
+/*     $NetBSD: machdep.c,v 1.38.2.5 2000/01/15 17:04:53 he Exp $      */
 
 /*
  * Copyright (C) 1995, 1996 Wolfgang Solfrank.
@@ -635,6 +635,14 @@
                if (nbuf < 16)
                        nbuf = 16;
        }
+
+       /*
+        * XXX stopgap measure to prevent wasting too much KVM on
+        * the sparsely filled buffer cache.
+        */
+       if (nbuf * MAXBSIZE > VM_MAX_KERNEL_BUF)
+               nbuf = VM_MAX_KERNEL_BUF / MAXBSIZE;
+
        if (nswbuf == 0) {
                nswbuf = (nbuf / 2) & ~1;
                if (nswbuf > 256)