robert@computing-maths.cardiff.ac.uk (Robert Evans) (06/17/91)
A couple of months ago I asked for information about this repeated message: >----- EVENT INFORMATION ----- >EVENT CLASS OPERATIONAL EVENT >OS EVENT TYPE 250. ASCII MSG >SEQUENCE NUMBER 143. >OPERATING SYSTEM ULTRIX 32 >OCCURRED/LOGGED ON Sat Apr 27 11:48:36 1991 WET DST >OCCURRED ON SYSTEM v1 >SYSTEM ID x05903B14 >PROCESSOR TYPE KA825 >PROCESSOR COUNT 2. >PROCESSOR WHO LOGGED x00000002 >MESSAGE ku_fastsend: transmit failed on de0, > _errno 55 under ULTRIX 4.1 on a VAX 8350 with a DEUNA on its ethernet which caused all ethernet traffic to hang. The message appears to show that the system is running out of buffers for the ethernet but DEC's suggested fixes for this failed. I had several replies from people who had similar-looking problems with various causes: physical damage to the ethernet cabling, a bug in Ultrix4.1 LAT (not applicable in our case), failure to recover from a temporary break in the ethernet, and Tom Arons at UC Davis had had exactly the same problem on an 8600. The sugested fix was to replace the DEUNA with a DELUA. DEC did this and we've been up for 17 days now with no repetition of the problem. Looks like the ethernet driver hasn't allowed for some different characteristic in the old DEUNA. Thanks for all the replies. Sorry that this solution is of no help to those of you with a similar error but an entirely different hardware configuration. -- Robert Evans, Dept of Computing Maths, University of Wales College of Cardiff, PO Box 916, Cardiff, Wales, UK, CF2 4YN. Tel: +44 (0)222 874000 x 5518 Internet: R.Evans%computing-maths.cardiff.ac.uk@nsfnet-relay.ac.uk UUCP: R.Evans@cf-cm.UUCP or ...!uunet!mcsun!ukc!cf-cm!R.Evans Janet: R.Evans@uk.ac.cardiff.computing-maths