EPICS Controls Argonne National Laboratory

Experimental Physics and
Industrial Control System

1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  <20052006  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  <20052006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 
<== Date ==> <== Thread ==>

Subject: RE: dm and edm problems with CA gateway
From: "Kenneth Evans, Jr." <[email protected]>
To: "'tech_talk'" <[email protected]>
Date: Mon, 14 Mar 2005 14:02:29 -0600
I thought Jeff would respond to this topic, but since he has not, let me say
he was at ANL last week for another reason, and we traced the problem to the
fact that CAS is swapping the byte order each time the request is sent.
This causes it to be garbage every other time when it is (1) postponed on
(2) machines that do not have network byte order (e.g. Linux).

That it has not happened more often is because there is usually no need to
postpone write requests.  A slider on a fast machine can cause it to happen,
however.

It will be fixed in base at some point.

	-Ken


Replies:
CA gateway failure Jeff Hill
References:
RE: dm and edm problems with CA gateway Kenneth Evans, Jr.

Navigate by Date:
Prev: RE: dm and edm problems with CA gateway Kenneth Evans, Jr.
Next: iocInit and vxstats Al-Adwan Ahed
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  <20052006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 
Navigate by Thread:
Prev: RE: dm and edm problems with CA gateway Kenneth Evans, Jr.
Next: CA gateway failure Jeff Hill
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  <20052006  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 ·