Path: utzoo!mnetor!uunet!husc6!bu-cs!budd
From: budd@bu-cs.BU.EDU (Philip Budne)
Newsgroups: comp.unix.wizards
Subject: Increasing Syspt in Sun 3.4
Message-ID: <18238@bu-cs.BU.EDU>
Date: 5 Jan 88 22:42:40 GMT
Organization: Boston U. Comp. Sci.
Lines: 13
Keywords: syspt sun 3.4 sysptsize

We kept finding that well configured systems under 3.4 would not boot
because the system page table was not large enough; Here is the
largest value of SYSPTSIZE that will not overflow the system segment.
More room might be gleaned by crowding the space allocated for kadb.

bu-it% diff vmparam.h.orig vmparam.h
39c39
< #define       SYSPTSIZE       (0x100000/NBPG)
---
> #define       SYSPTSIZE       (0x14E000/NBPG)

Alas you need sources.  Sun config will not allow "maxusers" to exceed
32, and we didn't get sources to config!!  I just edited the makefile.