SUMMARY: sparc-2 problems

From: Narendra Mehta (
Date: Mon Jun 17 1991 - 11:42:30 CDT

I posted the following message just over an hour ago, and I am already
posting the summary! The fix is to apply patch #100232-01.

My original message:

>We have been having some problems with sparc-2's, 16MB, SunOS 4.1.1.
>This has happened both on mono and colour sparc-2 workstations. This
>has not happened on any of our sun-3, sparc-1, sparc-1+, slc or ipc.
>The workstations quite frequently freezes. The symptoms are:
> 1. The screen goes blank.
> 2. All of the LED's on the keyboard are off
> 3. The green LED on the cpu box is off.
> 4. Cannot even rlogin
> 5. The L1-A does not work and the workstation has to be switched
> off/on to reboot.
>This happens even when a user is using the workstation at the console
>(rules out screen blank problems). This has happened both with
>OpenWindows and SunView environment. Anyone seen this before? Any

The 100232-01.README file:
Patch-ID# 100232-01
Keywords: crash, cpu, screen, black, sparcstation 2, sunos, 4.1.1
Synopsis: SunOS 4.1.1: Sparcstation 2 crashes or whatchdog resets
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:
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
        watchdog reset
Thanks to the following who sent in the replies:

From: "Ric Anderson" <>
From: howell@themoon.NYU.EDU (Andy Howell)
From: (Mark Plotnick)
From: (Joe Garbarino)

Narendra Mehta                                Carleton University
Internet:               Systems & Computer Eng. Dept.,
UUCP: ...!uunet!!naren         Ottawa, Ont, Canada

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