Thanks as always to sun-managers list for timely help ...
Original message;
I've been getting the following panic ... what do you think?
System: 4/260
Memory: 32 Megs
Swap: 100 Megs in /tmp
OS: 4.1.1
Patches: [ list of patches deleted ]
The panic message is;
vmunix: panic: mclput
As was pointed out there is a patch 100149-03. Patch appled, problem
corrected. Lesson learned ... always take some time to look through the
sun-fixes index.
Thanks to all who replied, the cast of characters;
Jim Davis jdavis@cs.arizona.edu
Mark Plotnick mp@allegra.att.com
Peter Sivo peter@key.amdahl.com
Joanne Shimada joanne@malibu.Jpl.Nasa.Gov
Ron Gaug ron@sarah.lerc.nasa.gov
Dan Lorenzini dal@gcm.com
John D Schneider jdschn@nicsn1.monsanto.com
John Stiles stiles@no2sun.cray.com
Valerie Zingale vzingale@jpmorgan.com
Steve Hanson hanson@pogo.fnal.gov
Ed Arnold era@ncar.ucar.edu
Mike Raffety miker@il.us.swissbank.com
Hal Stern stern@sunne.East.Sun.COM
Susan Whalen whalen@cs.nps.navy.mil
Synopsis of Patch README;
Patch-ID# 100149-03
Keywords: panic mclput mbuf IP packet drops packets
Synopsis: SunOS 4.1 and 4.1.1: system crashes with mclput panic
Date: 07-April-91
SunOS release: 4.1 4.1.1
Topic: kernel panic mclput
Problem description:
Bug ID: 1041559
Certain sequence of IP packets cause the mbuf chain to
be corrupted resulting in the above panic.
Bug ID: 1053552
kernels with mclput panic patch installed (ip_input.o)
PatchID 100149-01 will drop IP packets which have any IP
options included in the packet. Problem being incorrect
checksum for packets with IP-header length > 20 bytes
Fix description:
The fix includes patched version of:
ip_input.o
INSTALL:
as root
mv /sys/sun4/OBJ/ip_input.o /sys/sun4/OBJ/ip_input.o.FCS
cp sun4/ip_input.o /sys/sun4/OBJ/ip_input.o
chmod 444 /sys/sun4/OBJ/ip_input.o
A new kernel will need to be configured and built.
That is all
James A. Carhart | "how are we doing, Sirs?"
Code 6690 |
Naval Research Laboratory |
4555 Overlook Avenue SW | the views expressed here are
Washington, DC 20375-5343 | definately not those of my
carhart@dave.nrl.navy.mil | employer
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