Experimental Physics and
Industrial Control System

John,
 
Can you see if Stephanie's fix works for you?  I will commit it to CVS, but I want to know if it fixes your problem too.
 
Mark
 

________________________________

From: [email protected] on behalf of Allison, Stephanie
Sent: Tue 5/6/2008 8:38 PM
To: John Sinclair; Tech-talk
Subject: RE: asyn problem



Hi John,

Are you using gpib support?  This may not be related but I get a segmentation fault when I set eos to non-NULL in the DSET gpibCmd.  To fix, in asyn/asynGpib/asynGpib.c, the readIt routine, the eomReason pointer needs to be checked before setting:

    if(pgpibPvt->eoslen==1 && nt>0) {
        if(data[nt-1]==pgpibPvt->eos) {
/****  add eomReason pointer check ****/
            if (eomReason) *eomReason |= ASYN_EOM_EOS;
            nt--;
        }
    }
    if(nt<maxchars) data[nt] = 0;
    if(nt==maxchars)
/****  add eomReason pointer check ****/
      if (eomReason) *eomReason |= ASYN_EOM_CNT;

Perhaps Mark Rivers can add this fix to the next version of asyn?  And perhaps I shouldn't use devGpib but it seemed less work to convert my old existing gpib stuff to devGpib...

Thank you,

Stephanie Allison

> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]] On Behalf Of John Sinclair
> Sent: Tuesday, May 06, 2008 12:06 PM
> To: Tech-talk
> Subject: asyn problem
>
> For EPICS R3.14.9 on x86 linux with asyn-vxi11-gpib talking to E5810A
> device:
>
> asyn R4-1 has worked well for several years.
>
> Today, I reinstalled software and upgraded to asyn R4-9.
>
>
> I get the following message and a soft ioc crash (before
> iocInit is called):
>
> epics> vxi11Configure("L0","10.1.75.206",0,0.0,"gpib0",0,0)
> epics> 2008/05/06 13:36:40.977 L0 vxi11 clientCall errno Permission
> denied clnt_stat 5
> 2008/05/06 13:36:40.977 L0 vxiCreateIrqChannel
> (create_intr_chan): RPC:
> Timed out
>
> 2008/05/06 13:36:40.977 L0 Warning -- SRQ not operational.
> Segmentation fault
>
> ----------------------------------------
>
> Any guidance?
>
> John Sinclair
>
>

References:

asyn problem John Sinclair

RE: asyn problem Allison, Stephanie

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