Experimental Physics and
Industrial Control System

Emmanuel Mayssat <[email protected]> · Wed, 09 Apr 2008 14:46:45 -0700

Rodney and others,

I have noticed that the CA behave differently (work, return
errors/warnings, or doesn't work at all) when the epics-base is changed
between 3.14.6 and 3.14.9

But as Rodney mentioned it, this is also true for the same base 3.14.9
built on a different linux versions. 
Ex: 
caget from 3.14.9 on RedHat 8.0 segment faults for waveforms.
caget 3.14.6 on RH8 is ok
caget from 3.14.9 on fedora core 6 is ok.

I suspect this issues is related to those I am experiencing with medm
and edm.

Regards,

--
Emmanuel

On Thu, 2008-03-27 at 09:01 -0700, Emmanuel Mayssat wrote:
> You may want to look at the -noMsg option of medm.
> Are you sure the problem you are having is related to the version OS?
> 
> I have several problems with medm (and edm BTW), but in my case it seems
> to be related to the version of the epics base I am building against.
> My medm (3.1.1+) works when build on epics base 3.4.6 and but not with
> 3.4.9 ( compile, execute, but never connect to IOC)
> Conversely, my edm (1_10_1d+) works when compiled against 3.4.9 but not
> with 3.4.6 (doesn't compile easily)
> 
> Good luck,
> --
> E
> 
> 
> 
> On Wed, 2008-03-26 at 17:32 -0500, Rodney R. Porter wrote:
> > I get the following error from MEDM on Fedora Core 4, with similar
> > unexplained MEDM communication hangs on Fedora Core 6:
> > 
> > medmCAExceptionHandlerCb:  Channel Access Exception:
> > Too many exceptions [25]
> > No more will be handled
> > Please fix the problem and restart MEDM
> > 
> > As far as I have been able to tell, the exceptions are generated when an ioc
> > is restarted.  Does anyone have any other experience with this error?
> > 
> > Rodney Porter
> > Nanoprobe Beamline
> > 
> 

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System