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In cpu_startup(): 

+ Initialise minaddr to the start of the file I/O buffers.
 + Check for overallocation of RAM for these buffers.
 + Change function name in panic message to match reality.

Code taken from almost every other port, and fixes the:
   uvm_km_suballoc: unable to allocate space in parent map
panic that some people have been experiencing.
This commit is contained in:
simonb 1999-04-21 02:03:24 +00:00
parent 250c4d44a4
commit 24323d7ef4
1 changed files with 10 additions and 3 deletions
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13
sys/arch/pmax/pmax/machdep.c
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@ -1,4 +1,4 @@
/* $NetBSD: machdep.c,v 1.135 1999/04/11 04:04:09 chs Exp $ */
/* $NetBSD: machdep.c,v 1.136 1999/04/21 02:03:24 simonb Exp $ */
/*
* Copyright (c) 1988 University of Utah.
@ -43,7 +43,7 @@
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
__KERNEL_RCSID(0, "$NetBSD: machdep.c,v 1.135 1999/04/11 04:04:09 chs Exp $");
__KERNEL_RCSID(0, "$NetBSD: machdep.c,v 1.136 1999/04/21 02:03:24 simonb Exp $");
/* from: Utah Hdr: machdep.c 1.63 91/04/24 */
@ -548,9 +548,16 @@ cpu_startup()
NULL, UVM_UNKNOWN_OFFSET,
UVM_MAPFLAG(UVM_PROT_NONE, UVM_PROT_NONE, UVM_INH_NONE,
UVM_ADV_NORMAL, 0)) != KERN_SUCCESS)
panic("startup: cannot allocate VM for buffers");
panic("cpu_startup: cannot allocate VM for buffers");
minaddr = (vaddr_t)buffers;
if ((bufpages / nbuf) >= btoc(MAXBSIZE)) {
bufpages = btoc(MAXBSIZE) * nbuf; /* do not overallocate RAM */
}
base = bufpages / nbuf;
residual = bufpages % nbuf;
/* now allocate RAM for buffers */
for (i = 0; i < nbuf; i++) {
vsize_t curbufsize;
vaddr_t curbuf;