Patch-ID# 100116-01
Keywords: spurious level 3 interupt ie1
Synopsis: spurious level 3 interupt for ie1
Date: 06/Sept/90
 
SunOS release: 4.0.3, 4.1 4.1_PSR_A
 
Unbundled Product: 
 
Unbundled Release:
 
Topic: 
 
BugId's fixed with this patch: 1009297

Architectures for which this patch is available: sun3 running 4.0.3
                                                 sun3 running 4.1
                                                 sun4 running 4.1
                                                 sun4/390 running 4.1_PSR_A
ONLY these architectures show the symptoms.

Obsoleted by: 5.0

Problem Description:

        This patch fixes a problem which occurs in SunOS 4.0.3 and 4.1
        on sun-3 and sun4 gateway machines.  When a large number of packets
        are being routed through the gateway(ie1 interface), the following
        error message will appear in the console window:

		vmunix: spurious level 3 interrupt
        
	These messages are displayed as a result of the way the
	Intel 82586 ethernet controller works and this patch is
	designed to suppress the message. 

INSTALL:

For Sun3 running 4.0.3 or 4.1:

        Be sure to save the original OBJ/trap.o file.

        ie:     # cd /usr/sys/sun3/OBJ
                # mv trap.o trap.o-
 
        Then move the new file from the temporary directory
        into which it was extracted.

        ie:     # cd /usr/tmp   - or whichever directory was used
                # mv trap.o /usr/sys/sun3/OBJ

        You may then remove the unused .o file from /usr/tmp.

        Set the modes and ownership of the new files.

        ie:     # cd /usr/sys/sun4/OBJ
                # chmod 444 trap.o
                # chown root.staff trap.o

For sun4 or sun4/390 running 4.1:

        Be sure to save the original OBJ/locore.o file.

        ie:     # cd /usr/sys/sun4/OBJ
                # mv locore.o locore.o-

        Then move the new file from the temporary directory
        into which it was extracted.

        ie:     # cd /usr/tmp   - or whichever directory was used
                # mv locore.o /usr/sys/sun4/OBJ

        You may then remove the unused .o file from /usr/tmp.

        Set the modes and ownership of the new files.

        ie:     # cd /usr/sys/sun4/OBJ
                # chmod 444 locore.o
                # chown root.staff locore.o


For all:

        Now, follow the normal procedures for building and installing a
        new kernel.   The machine should then be re-booted.   For
        help in building a new kernel, please refer to your:
         "System and Network Administration" manual.