[nsp] cat4k 'Stub Failure' on module 5

[Don Bowman]

I have two identical cat4k running IOS 12.1(13)EW.

Both units are, once in a while, giving a 'stub failure' for 
either 4 or 8 ports in module 5. Its always module 5.
If I reset the module, the error goes away.

I don't know what a 'stub failure' is, can someone enlighten me?

I'm loathe to try and RMA both units.

Cisco Internetwork Operating System Software 
IOS (tm) Catalyst 4000 L3 Switch Software (cat4000-IS-M), Version
12.1(13)EW, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1)
TAC Support: http://www.cisco.com/tac
Copyright (c) 1986-2002 by cisco Systems, Inc.
Compiled Fri 20-Dec-02 13:52 by eaarmas
Image text-base: 0x00000000, data-base: 0x00E638AC

ROM: 12.1(12r)EW
Dagobah Revision 53, Swamp Revision 16

CCS1 uptime is 21 hours, 22 minutes
System returned to ROM by reload
System restarted at 19:15:36 est Fri Apr 4 2003
System image file is "bootflash:cat4000-is-mz.121-13.EW"

cisco WS-C4006 (MPC8245) processor (revision 7) with 262144K bytes of
memory.
Processor board ID FOX055109YQ
Last reset from Reload
98 Gigabit Ethernet/IEEE 802.3 interface(s)
467K bytes of non-volatile configuration memory.

Configuration register is 0x2102