Patch-ID# 103425-01
Keywords: DBE panic 4.1.3 sun4m va2pa intermittent
Synopsis: SunOS 4.1.3 system with DBE panics, "va2pa: address not mapped"
Date: Apr/22/96

Solaris Release: 1.1

SunOS Release: 4.1.3 

Unbundled Product: 

Unbundled Release: 

Relevant Architectures: sparc
    NOTE: sun4m

BugId's fixed with this patch: 1237687

Changes incorporated in this version: 

Patches accumulated and obsoleted by this patch: 

Patches which conflict with this patch: 

Patches required with this patch: 

Obsoleted by: 

Files included with this patch: 

				README
				sun4m-dbe-cache/spt.o
				sun4m-dbe-nocache/spt.o

NOTE:  This patch should only be installed on systems running DBE.

NOTE:  There are two versions of spt.o supplied with this patch.
       The "cache" version should be installed on systems with
       a CPU cache such as SPARCserver 10 Model 41 and SPARC-
       server 600 Model 41.  The "nocache" version should be
       installed on systems with no CPU cache such as the
       SPARCserver 10 Models 20 and 30.

Problem Description: 

Sun4m system running DBE may intermittently panic with the following
error: "panic: va2pa address not mapped" .

Patch Installation Instructions: 

1) As root, make a backup of original spt.o file.
	mv /usr/sys/sun4m/OBJ/spt.o /usr/sys/sun4m/OBJ/spt.o.orig

2) Copy the appropriate spt.o file from the patch directory.
	cp spt.o /usr/sys/sun4m/OBJ  

3) Config, make, and install a new kernel. Reboot the system.
   Please refer to the System Administration Manual for information
   about building a new kernel.
