EPICS Home

Experimental Physics and Industrial Control System


 
1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  <2017>  2018  2019  2020  2021  2022  2023  2024  Index 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  <2017>  2018  2019  2020  2021  2022  2023  2024 
<== Date ==> <== Thread ==>
Subject: Re: Asyn GPIB proto file exception @writetimeout
From: "Zimoch Dirk (PSI)" <[email protected]>
To: "[email protected]" <[email protected]>
Cc: "[email protected]" <[email protected]>
Date: Fri, 6 Oct 2017 17:07:55 +0000 
Hi James,

I will have a look at the @writetimeout handler after the ICALEPCS.
The reason why you do not see the @replytimeout handler executing is that the protocol already bails out in write and never gets to the point where it would wait for a reply.

Can you try to print a stack trace of the crashed ioc (e.g. using gdb) and send it to me?

Cheers
Dirk

> Am 06.10.2017 um 17:40 schrieb "[email protected]" <[email protected]>:
> 
> Hey hey!
> 
> I have a device on my Linux IOC, using Asyn GPIB.  The device works on the
> IOC and, connected with EDM - is controllable.
> 
> When the device is turned off I get an error message:  asynError in write:
> GPIB0 writeGpib failed ENOL 2: No listeners
> 
> The function in the proto file uses exception @replytimeout, but that
> never executes,  which I would expect (I queried a device, it's not there,
> I should have a timeout). This works on TCP/IP devices, just not GPIB.
> 
> Does anyone have any thoughts, or hacks, or updates on getting GPIB
> exceptions to run the proto file exception commands?
> 
> Also when I try using the @writetimeout exception to more closely mimic
> the error message, the IOC crashes on boot, not even an IOC command
> prompt, which looks like a separate problem, any help on that would also
> be appreciated.  Error message is:
> 
> A call to 'assert(dbLockIsInitialized)'
>    by thread 'cbLow' failed in ../dbLock.c line 239.
> EPICS Release EPICS R3.14.11 $R3-14-11$ $2009/08/28 18:47:36$.
> Local time is 2017-10-06 08:13:40.495885987 PDT
> Please E-mail this message to the author or to [email protected]
> Calling epicsThreadSuspendSelf()
> Thread cbLow (0x9a12518) suspended
> 
> 
> Cheers
> James Larsson
> 
> 
> 
>
Replies:
Re: Asyn GPIB proto file exception @writetimeout Mark Rivers
References:
Asyn GPIB proto file exception @writetimeout jlarsson
Navigate by Date:
Prev: Writing PVs from an amalgamated structure Iain Marcuson
Next: Basic String Concatenation in EPICS Sobhani, Bayan
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  <2017>  2018  2019  2020  2021  2022  2023  2024 
Navigate by Thread:
Prev: Asyn GPIB proto file exception @writetimeout jlarsson
Next: Re: Asyn GPIB proto file exception @writetimeout Mark Rivers
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  <2017>  2018  2019  2020  2021  2022  2023  2024