Nasty 4.1.1/SS2 bug (was SparcStation-2's and ACL)

[Dave Axness]

It's not just Lisp that triggers the problem, it can be any large
application.  We saw the problem running FrameMaker.  The following is the
README file from the patch tape:

***

Patch-ID#  100232-01
Keywords: crash, cpu, light, goes, off, screen, black, sparcstation 2, sunos, 4.1.1
Synopsis:Sparcstation 2 running SunOS 4.1.1 crashes under some applications

Date: 28/Feb/91

SunOS release:
	 4.1.1

Unbundled Product: 

Unbundled Release:

Topic: Sparcstation 2, SS2, crash, blank, screen, powercycle

BugId's fixed with this patch: 1050558

Architectures for which this patch is available: sun4c

Patches which may conflict with this patch:

Obsoleted by:

Problem Description:

It has been reported that large applications that run fine under SunOS
4.1.1 on the SS-1  / SS-1+ and other SUN4 machines, crash the SS-2 machine
running SunOS 4.1.1. 

The symptoms are:

	screen goes black
	cpu light goes out
	L1-A does not work
	user typically has to power the machine off and restart machine again

INSTALL:
   as root install the  sun4c patches as follows:

      #  mv /sys/sun4c/OBJ/machdep.o /sys/sun4c/OBJ/machdep.o.orig
      #  mv /sys/sun4c/OBJ/locore.o /sys/sun4c/OBJ/locore.o.orig
      #  cp sun4c/machdep.o /sys/sun4c/OBJ/machdep.o
      #  cp sun4c/locore.o /sys/sun4c/OBJ/locore.o
      #  chmod 444 /sys/sun4c/OBJ/machdep.o
      #  chmod 444 /sys/sun4c/OBJ/locore.o


Then a new kernel will need to be made and installed.  Please refer to the
System and Network Administration manual for installing a custom kernel

Dave Axness
Quantum Medical Systems, Inc.
dave at QMS.COM -or- ...uunet!wor-mein!dave