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<== Date ==> <== Thread ==>

Subject: RE: channel access errors
From: "Jeff Hill" <[email protected]>
To: "'Geoff Savage'" <[email protected]>, "'EPICS Tech-Talk'" <[email protected]>
Date: Tue, 14 Dec 2004 13:05:55 -0700
> We have noticed more channel access errors with the later 
> version of epics
>
> we have been fielding questions about error
> messages appearing that have not been seen before.

I am not sure if your users are concerned about the proper interpretation of
new messages, or if they are encountering bugs?

The R3.14 version of the CA library *is* generating more detailed messages
about the specific causes of a disconnect.

The R3.14 version of the CA client library *is* detecting a disconnect if
one of {ca_poll, ca_pend_event} are not called regularly. This *is* a change
in behavior compared to R3.13. 

Quite a few (mostly esoteric) issues have been patched between R3.14.7 and
R3.14.6.

> I understand that I don't have any details but the 
> situations encountered are not reproducible

If bugs have been encountered, then please send additional details so that
we can attempt to determine if you are experiencing problems that have
already been fixed. You might also find that the entries in the Mantis bug
tracker are useful for that purpose. 

Jeff

> -----Original Message-----
> From: Geoff Savage [mailto:[email protected]]
> Sent: Monday, December 06, 2004 1:44 PM
> To: EPICS Tech-Talk
> Subject: channel access errors
> 
> Hi,
> 
> We have just finished upgrading about 75% of the control system nodes to
> EPICS 3.14.6/vxworks 5.5.  The remaining nodes are running EPICS 3.13.4
> with some patches/vxworks 5.3.1.  We have noticed more channel access
> errors with the later version of epics in the system than with an all
> EPICS 3.13.4 system.  Is this to be expected at this time?  Will the
> EPICS 3.14.7 release remove the errors?  I understand that I don't have
> any details but the situatuions encountered are not reporduceable and
> everyone can get their work done.  Over the past week while we have
> installed the new software we have been fielding questions about error
> messages appearing that have not been seen before.
> 
> Geoff



References:
channel access errors Geoff Savage

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