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<== Date ==> <== Thread ==>

Subject: FW: comp.os.vxworks newsdigest
From: johill@lanl.gov (Jeff Hill)
To: "EPICS-tech-talk (E-mail)" <tech-talk@aps.anl.gov>
Date: Wed, 20 Jan 1999 10:23:31 -0700
All,

overheard this on the WRS exploder

Jeff

Newsgroups: comp.os.vxworks
Subject: Re: PCB chain corruption
Date: 14 Jan 99 20:06:23 GMT
From: georg@sgl.crestech.ca (Georg Feil)
Organization: Centre for Research in Earth and Space Technology
Message-ID: <georg.916344383@s2.sgl.ists.ca>
References: <3699DB3F.CA47D001@ires.in2p3.fr>

Next use 'mbufShow' to be sure that there are enough network buffers 
available. In particular the "number of times drained protocols for space"
line should show 0, otherwise your system has been running out of mbufs.
Raise the max mbufs limit and rebuild your VxWorks image to get around this.
We've found that protocol "draining" can cause serious problems, 
including network access delays and the apparent "stranding" of mbufs
resulting in permanent loss (this is probably a bug somewhere in VxWorks).

Good luck,
Georg
- --
Georg Feil
                                             | http://www.sgl.crestech.ca/
Space Geodynamics Laboratory                 | Email: georg@sgl.crestech.ca
CRESTech                                     | Phone: (416) 665-5458
4850 Keele St./North York/Ont/Canada/M3J 3K1 | Fax: (416) 665-1815


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