Experimental Physics and
Industrial Control System

"Vigder, Mark" <[email protected]> · Tue, 8 Mar 2011 17:40:46 -0500

Andrew/Jeff

Thanks for the patch suggestions. Turns out the problem was PyEpics 3.0.11 on 64 bit systems. Matt had already fixed it with the latest version that was in the repository.

I certainly appreciate the help.

Mark

________________________________________
From: Andrew Johnson [[email protected]]
Sent: March 8, 2011 3:16 PM
To: [email protected]; Vigder, Mark
Subject: Re: PyEpics segmentation faults

Hi Mark,

Please try applying the patch from the 3.14.12 Known Problems page dated
2011-02-16 to your EPICS Base installation to see if it helps.  This patch has
been reported to fix a couple of CA client issues at different sites now, and
if it helps you too I'll make it more prominent on that page.

  http://www.aps.anl.gov/epics/base/R3-14/12-docs/KnownProblems.html

- Andrew

On Tuesday 08 March 2011 13:45:32 Vigder, Mark wrote:
> I'm running PyEpics 3.0.11, on Ubuntu 10.04.2, Epics 3-14-12, Python 2.6.5,
> linux-x86_64. A while ago (perhaps with earlier versions of something?)
> everything seemed to be working fine. I hadn't used it for a while, but now
> when I fire it up I end up with weird behaviour, e.g.:
>
> -I type: Motor('XXX:m1'). Returns error, saying 'XXX:m1' is not a motor.
>
> -I type: Motor('XXX:m1') a second time. This one works.
>
> -Sometime later, I'll get a 'Segmentation fault'.
>
> Anybody seen this kind of behaviour? Any ideas what's going on or where I
> should start looking for solutions?
>
> P.S., I just tried with Python3.1. Same thing.
>
> Thanks
> Mark
>
> Mark Vigder
> Canadian Neutron Beam Centre
--
An error is only a mistake if you don't learn from it.
When you learn something from it, it becomes a lesson.

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System