EPICS Home EPICS Controls Argonne National Laboratory

Experimental Physics and
Industrial Control System

Format page
for printing


Search Tech-talk
1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  <2010>  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024  Index 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  <2010>  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 
<== Date ==> <== Thread ==>
Subject: Re: strange ioc hangup
From: rolf keitel <[email protected]>
To: Benjamin Franksen <[email protected]>
Cc: tech-talk <[email protected]>
Date: Wed, 23 Jun 2010 19:08:59 +0200
At TRUMF we had nothing but problems with VxWorks 5.4. Upgrading to 5.5 resolved the issues.
- rolf -

On 6/23/2010 3:19 PM, Benjamin Franksen wrote:
> From the console log:

CAS: request from 192.168.21.6:46187 =>  "CAS: Missaligned protocol rejected"
[Sun Jun 20 05:23:20 2010]CAS: Request from 192.168.21.6:46187 =>  cmmd=49320
cid=0x91f87157 type=48940 count=5064 postsize=5587
[Sun Jun 20 05:23:20 2010]CAS: Request from 192.168.21.6:46187 =>
available=0xcb45c46e 	N=1 paddr=0x0
[Sun Jun 20 05:23:20 2010]CAS: invalid (damaged?) UDP request from
192.168.21.6:46187 ?
[Sun Jun 20 05:23:30 2010]interrupt:
[Sun Jun 20 05:23:30 2010]ei0: reset

This is base 3.14.8.2 and VxWorks 5.4.2. Looks like one or more corrupt UDP
packages arrived at the IOC. The problem is that after the last message
("ei0: reset") the IOC is dead to the network (neither transmits nor
receives anything). No way to recover, other than rebooting.

The question is: what does the CA server do after it outputs these error
messages? Could it be it does something to the socket that makes vxWorks
throw up hands and strike? Also, note the 10 second delay between the CAS
message and the vxWorks message.

Is this a known bug in VxWorks? In the CAS?

Cheers
Ben

begin:vcard
fn:Rolf Keitel, Ph.D.
n:Keitel, Ph.D.;Rolf
org:TRIUMF;Engineering Division
adr:;;4004 Wesbrook Mall;Vancouver;BC;V6T 2A3;Canada
email;internet:[email protected]
title:Division Head
tel;work:1-604-222 7453
tel;fax:1-604-222 7307
x-mozilla-html:TRUE
version:2.1
end:vcard
References:
strange ioc hangup Benjamin Franksen
Navigate by Date:
Prev: RE: strange ioc hangup Jeff Hill
Next: EPICs for VGScienta instruments James.OHea
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  <2010>  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 
Navigate by Thread:
Prev: RE: strange ioc hangup Jeff Hill
Next: EPICs for VGScienta instruments James.OHea
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  <2010>  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 
ANJ, 02 Sep 2010 Valid HTML 4.01! · Home · News · About · Base · Modules · Extensions · Distributions · Download ·
· Search · EPICS V4 · IRMIS · Talk · Bugs · Documents · Links · Licensing ·