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

Subject: bug in R3.14.5
From: "Jeff Hill" <[email protected]>
To: <[email protected]>
Date: Wed, 28 Apr 2004 17:32:43 -0600
All,

A significant bug limited in scope to EPICS release 3.14.5 has been
discovered by Ken Evans. The problem is related to Channel Access monitor
subscriptions not updating after a TCP circuit experiences periods of
temporarily unresponsiveness. Please see entry 78 in Mantis. A patch has
been applied to CVS and a fix will be included in R3.14.6. Sorry about any
trouble that this has caused.

Jeff

A decision was made to add a change to EPICS R3.14.5 so 
that when a TCP circuit is temporarily unresponsive then 
the channel, but not the circuit, is immediately 
disconnected. This change was determined to be necessary 
to improve overall system robustness in the face of 
IOC or network overload. 

Unfortunately, an error was made when installing these 
changes which could cause a subscriptions to stop 
updating if a circuit is temporarily unresponsive. 
__________________________________________________________
Jeffrey O. Hill               Mail         [email protected]
LANL MS H820                  Voice        505 665 1831
Los Alamos NM 87545 USA       Fax          505 665 5107




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