EPICS Controls 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  2010  2011  <20122013  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  <20122013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 
<== Date ==> <== Thread ==>

Subject: Weird behaviour of R3.14.12.2 soft IOC
From: Eric Norum <[email protected]>
To: "[email protected] tech-talk" <[email protected]>
Date: Wed, 18 Jul 2012 16:33:08 -0700
Something strange has just occurred on one of our new linux soft IOC platforms.

The IOC application is running (on machine "b04lxioc02") and has a PV:
epics> dbpr CAENA36XX:1:BulkVoltage
ASG:                DESC: Bulk supply voltage               DISA: 0             
DISP: 0             DISV: 1             NAME: CAENA36XX:1:BulkVoltage           
RVAL: 0             SEVR: NO_ALARM      STAT: NO_ALARM      SVAL: 0             
TPRO: 0             VAL: 27.5     
      
But a client on the same machine (or on another machine on then net for that matter) fails to see this:
enorum@b04lxioc02> caget CAENA36XX:1:BulkVoltage
Read operation timed out: some PV data was not read.
CAENA36XX:1:BulkVoltage        0
CA.Client.Exception...............................................
    Warning: "Virtual circuit disconnect"
    Context: "op=0, channel=CAENA36XX:1:BulkVoltage, type=DBR_TIME_DOUBLE, count=1, ctx="b04lxioc02.als.lbl.gov:42204""
    Source File: ../getCopy.cpp line 92
    Current Time: Wed Jul 18 2012 16:24:10.044127476
..................................................................

And forcing a direct connection attempt doesn't help:
enorum@b04lxioc02> EPICS_CA_ADDR_LIST=localhost EPICS_CA_AUTO_ADDR_LIST=NO  caget CAENA36XX:1:BulkVoltage
Read operation timed out: some PV data was not read.
CAENA36XX:1:BulkVoltage        0
CA.Client.Exception...............................................
    Warning: "Virtual circuit disconnect"
    Context: "op=0, channel=CAENA36XX:1:BulkVoltage, type=DBR_TIME_DOUBLE, count=1, ctx="localhost:42204""
    Source File: ../getCopy.cpp line 92
    Current Time: Wed Jul 18 2012 16:25:09.027521134
..................................................................

Host info:
enorum@b04lxioc02 > uname -a
Linux b04lxioc02.als 2.6.32-220.17.1.el6.x86_64 #1 SMP Tue May 15 17:16:46 CDT 2012 x86_64 x86_64 x86_64 GNU/Linux

EPICS info -- IOC startup: 
iocInit
Starting iocInit
############################################################################
## EPICS R3.14.12.2 $Date: Mon 2011-12-12 14:09:32 -0600$
## EPICS Base built May 24 2012



Troubleshooting suggestions welcomed.
-- 
Eric Norum
[email protected]


Replies:
Re: Weird behaviour of R3.14.12.2 soft IOC Eric Norum

Navigate by Date:
Prev: RE: SR620 Time Interval / Frequency Counter support? Ivashkevych, Oksana
Next: Re: Weird behaviour of R3.14.12.2 soft IOC Eric Norum
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  <20122013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 
Navigate by Thread:
Prev: RE: SR620 Time Interval / Frequency Counter support? Ivashkevych, Oksana
Next: Re: Weird behaviour of R3.14.12.2 soft IOC Eric Norum
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  <20122013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 
ANJ, 18 Nov 2013 Valid HTML 4.01! · Home · News · About · Base · Modules · Extensions · Distributions · Download ·
· Search · EPICS V4 · IRMIS · Talk · Bugs · Documents · Links · Licensing ·