Argonne National Laboratory

Experimental Physics and
Industrial Control System

1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  <20102011  2012  2013  2014  2015  2016  2017  Index 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  <20102011  2012  2013  2014  2015  2016  2017 
<== Date ==> <== Thread ==>

Subject: strange ioc hangup
From: Benjamin Franksen <benjamin.franksen@bessy.de>
To: tech-talk@aps.anl.gov
Date: Wed, 23 Jun 2010 15:19:44 +0200
>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


Replies:
Re: strange ioc hangup Lawrence T. Hoff
Re: strange ioc hangup Andrew Johnson
RE: strange ioc hangup Jeff Hill
Re: strange ioc hangup rolf keitel

Navigate by Date:
Prev: Re: MEDM installation instructions Pelaia II, Tom
Next: Re: strange ioc hangup Lawrence T. Hoff
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  <20102011  2012  2013  2014  2015  2016  2017 
Navigate by Thread:
Prev: RE: CSS BOY / scripting / XY Graph Chen, Xihui
Next: Re: strange ioc hangup Lawrence T. Hoff
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  <20102011  2012  2013  2014  2015  2016  2017 
ANJ, 02 Sep 2010 Valid HTML 4.01! · Home · News · About · Base · Modules · Extensions · Distributions · Download ·
· EPICS V4 · IRMIS · Talk · Bugs · Documents · Links · Licensing ·