Experimental Physics and
Industrial Control System

Wesley Moore <[email protected]> · Fri, 21 Sep 2012 11:37:03 -0400 (EDT)

----- Original Message -----
> From: "J. Lewis Muir" <[email protected]>
> To: "Wesley Moore" <[email protected]>
> Cc: "Jeff Hill" <[email protected]>, "Dirk Zimoch" <[email protected]>, "Benjamin Franksen"
> <[email protected]>, "EPICS tech-talk" <[email protected]>
> Sent: Friday, September 21, 2012 10:45:13 AM
> Subject: Re: CAC problem between RTEMS and vxWorks
> 
> On 9/21/12 9:33 AM, Wesley Moore wrote:
> > Jeff and Dirk - thanks for getting back to me.
> > 
> > I'm familiar with some of the issues that you guys pointed out,
> > they can definitely bite you.  While double-checking your
> > suggestions I found that one of the channels that was being
> > monitored came from another vxWorks IOC (mistake on my part).
> >  Surprise, surprise...it never has any disconnect issues.
> >  Following that lead, I found that the problems seem to be
> > centered around a dynamically assigned pv in one of my two
> > sequencers.  When I hard-coded that pv assignment the problems
> > went away.  This remains consistent.  What's confusing me a bit is
> > that I use dynamic assignment in the working sequencer, I just
> > don't do any reassignments.
> > 
> > Ben - Any known issues with dynamic assignment/reassignment?
> >  Perhaps specific to RTEMS?
> 
> Hi, Wesley.
> 
> There have been a number of bug fixes related to pvAssign.  You
> can find these in the release notes (just search in the page for
> "pvAssign"):
> 
>   http://www-csr.bessy.de/control/SoftDist/sequencer/Notes.html
> 
> What version of the sequencer are you using?
> 
> Lewis
> 

Lewis,

I'm using 2-1-9.  Looking through all the release notes and also seq_if.c.  I'm thinking of trying to de-assign the channel between uses.

Wesley 

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System