asyn re-connect problem

[Benjamin Franksen <benjamin.franksen@bessy.de>]

The reconnect feature in asyn is still buggy. I am using it with a gpib/lan 
gateway (Agilent E5810A). Any time I reboot the gpib box I get these 
messages:

-------------------------------------------------
epics> 2010/12/16 13:07:44.150 L3 PAHRP:NRVD:cmdTrg: asynError in read: L3 
RPC failed

2010/12/16 13:07:44.150 L3 PAHRP:NRVD:cmdTrg: I/O error after reading 0 
bytes: ""
2010/12/16 13:07:44.150 L3 PAHRP:NRVD:cmdTrg: Protocol aborted
2010/12/16 13:07:45.747 L3 vxiDestroyDevLink RPC error : RPC: Unable to 
send; errno = Broken pipe

2010/12/16 13:07:45.747 L3 vxiDisconnectPort : RPC: Unable to send; errno = 
Broken pipe

2010/12/16 13:07:47.750 L3 vxiDestroyDevLink RPC error : RPC: Unable to 
send; errno = Broken pipe

L3 port not connected
2010/12/16 13:07:47.750 L3 asynGpib:pollAddr srqEnable 
2010/12/16 13:07:47.750 L3 PAHRP:NRVD:rdPow1: asynError in write: L3 RPC 
failed

2010/12/16 13:07:47.750 cbLow PAHRP:NRVD:rdPow2 lockRequest: pasynManager-
>queueRequest() failed: port L3 not connected

2010/12/16 13:07:47.766 gpib0 vxiCreateDeviceLink abort channel TCP port 
changed from 1004 to 1005
2010/12/16 13:07:47.772 gpib0,20 vxiCreateDeviceLink abort channel TCP port 
changed from 1004 to 1005
-------------------------------------------------

Afterwards there are no further communication attempts; rebooting the IOC 
correctly establishes a new connection.

The IOC runs on a GNU/linux system. Version info:

kernel 2.6.18-6-686
EPICS base-3.14.8.2
asyn-4.15
streamDevice-2-snapshot20100615

Cheers
Ben