Experimental Physics and
Industrial Control System

"Garrett D. Rinehart" <rinehart> · Mon, 2 Dec 2002 10:19:28 -0600 (CST)

I get no channel access at all. I'm running John's build on a RedHat 7.3 box. 
Network functions seem normal (ping, telnet, ssh, etc all work). I've checked 
that the CA ports 5064 and 5065 are not blocked. My linux box and iocs are all 
on a private network with no routers between them. Even setting 
"EPICS_CA_ADDR_LIST" as John mentions does nothing. Medm screens stay white. 
Tcl/tk scripts cannot connect to channels. Caget/caput commands eventually time 
out. I get no errors other than "invalid channel name" responses from 
caget/caput.

I don't even have any more ideas what to look for. If anyone has any ideas at 
all, please let me know.

Thanks.

Garrett Rinehart
Control and Data Acquisition System Manager
Accelerator Operations Group
Intense Pulsed Neutron Source
Argonne National Laboratory
9700 S. Cass Ave
Argonne, IL  60439
(630)252-6561

> Subject: Channel Access/Linux/R3.13.7
> To: 'EPICS Tech-Talk' <[email protected]>
> MIME-version: 1.0
> List-Help: <http://www.aps.anl.gov/epics/mail.php>
> 
> We are in the process of upgrading from EPICS 3.13.5 and R3.13.7.
> Everything works fine on solaris but on Linux I do not get any channel
> communication from IOCs unless I specify EPICS_CA_ADDR_LIST.  This did work
> on R3.13.5 without this specification.  My 3.13.5 distribution came from a
> tar.gz file from APS.  My 3.13.7 came directly from APS CVS.  Is there a
> difference in settings in config files that can cause this.
> 
> John Hammonds

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System