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

Subject: Re: asyn 4.8 problem
From: Robert Emery <[email protected]>
To: Mark Rivers <[email protected]>
Cc: [email protected]
Date: Thu, 23 Aug 2007 13:17:33 -0700
Mark,

Moving the E5810 Reboot call before the asynSetTraceMask solved the problem when using asyn 4.5

Moving the E5810 Reboot call before the vxi11Configure calls solved the problems when using asyn 4.8

Thanks for your help.

Rob

Mark Rivers wrote:
Hi Robert,

When I tried using asynSetTraceMask with my ioc that was working using asyn 4.5, the ports that I set asynTraceMask for would no longer connect.

That is very interesting. When you set asynTraceMask that actually results in a call to pasynCommon->connect. That happens at the time of the call to asynSetTraceMask. So it is should be connecting to the device at that point.

But then you have this line:
## Reboot the GPIB gateway
E5810Reboot("192.168.0.63",0)

I am not familiar with the VXI-11 and GPIB gateway, but is it possible
that rebooting the gateway is breaking the connection that has already
been made because you set the asynTraceMask?

Here are 3 suggestions:

- Remove the call to E5810Reboot temporarily to see if that fixes the
problem.
- Move the call to asynSetTraceMask to after the E5810Reboot call
- Put a delay (epicsThreadSleep) after the E5810Reboot to see if the
device is simply not quite ready yet to accept connections when iocInit
is run.


Mark



-----Original Message-----
From: Robert Emery [mailto:[email protected]] Sent: Thursday, August 23, 2007 11:02 AM
To: Mark Rivers
Cc: [email protected]
Subject: Re: asyn 4.8 problem


Mark,

I made the changes to asynManager but that made no difference. I tried using the asynSetTraceMask but that did not give me any more information. When I tried using asynSetTraceMask with my ioc that was working using asyn 4.5, the ports that I set asynTraceMask for would no longer connect.

I have attached the outputs from various ioc configurations.

Thanks

Rob

Mark Rivers wrote:
Rob,

We recently had a report from Dirk Zimich at PSI that VXI11 was not
working with asyn R4-8. But he was upgrading from EPICS
R3.13, not an
earlier version of asyn. So your report is very useful,
since you say
it worked in asyn R4-5.

Can you send the complete output when your IOC starts?

Can you set the asynTraceMask on that asyn port so that you get full
debugging information?

Also, I suspect that the problem may be coming from the
code that was
added in asyn R4-6 to automatically queue a connect request (call to
pasynCommon->connect) when a call to
pasynManager->connectDevice is done
for a port with the attributes autoConnect=Yes and isConnected=No.

Can you please try disabling this code with the following
change that
comments out the call to pasynCommon->connect() and letting
me know if
it fixes the problem?

corvette> cvs diff -rR4-8 asynManager.c Index: asynManager.c
===================================================================
RCS file:


/net/phoebus/epicsmgr/cvsroot/epics/modules/soft/asyn/asyn/asy
nDriver/as
ynManager.c,v
retrieving revision 1.93
diff -u -r1.93 asynManager.c
--- asynManager.c       28 Apr 2007 21:19:58 -0000      1.93
+++ asynManager.c       22 Aug 2007 17:25:32 -0000
@@ -1185,6 +1185,7 @@
     }
     pasynCommon = (asynCommon *)pasynInterface->pinterface;
     commonPvt   = pasynInterface->drvPvt;
+/*
     status = pasynCommon->connect(commonPvt, pasynUser);
     if (status != asynSuccess) {
         asynPrint(pasynUser, ASYN_TRACE_ERROR,
@@ -1192,6 +1193,7 @@
                   portName, pasynUser->errorMessage);
         goto cleanup;
     }
+*/
     cleanup:
     status = pasynManager->freeAsynUser(pasynUser);
     if (status != asynSuccess) {

Thanks,
Mark


-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Robert Emery
Sent: Wednesday, August 22, 2007 11:25 AM
To: [email protected]
Subject: asyn 4.8 problem


I have recently upgraded from asyn 4.5 to 4.8 and am seeing the following error messages whereas I didn't have them with 4.5:

Starting iocInit
##############################################################
##############
### EPICS IOC CORE built on Oct 9 2006
### EPICS R3.14.8.2 $R3-14-8-2$ $2006/01/06 15:55:13$
##############################################################
##############
2007/08/22 09:01:13.319 gpib0,1 vxiCreateDeviceLink RPC
error : RPC:
Unable to receive; errno = Connection reset by peer

2007/08/22 09:01:13.319 CoilA vxiCreateDevLink failed for addr 1
2007/08/22 09:01:13.319 asynManager::asynConnectCallback,
port CoilA
error calling asynCommon->connect
2007/08/22 09:01:13.319 gpib0,1 vxiCreateDeviceLink RPC
error : RPC:
Unable to send; errno = Broken pipe

2007/08/22 09:01:13.319 CoilA vxiCreateDevLink failed for addr 1

.
.
.

I am using this to control equipment on GPIB via an Agilent E5810 Ethernet/GPIB bridge.

Any ideas?

Thanks

Rob Emery
UW Medical Center




References:
RE: asyn 4.8 problem Mark Rivers

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