Argonne National Laboratory

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

Subject: RE: IOC error message on camonitor disconnect
From: <freddie.akeroyd@stfc.ac.uk>
To: <tech-talk@aps.anl.gov>
Date: Wed, 26 Jul 2017 17:58:38 +0000

Apologies, forgot to include the stack trace:

 

                dbCore.dll!cas_commit_msg(client * pClient, unsigned int size) Line 357               C

               dbCore.dll!vsend_err(const caHdrLargeArray * curp, int status, client * client, const char * pformat, char * args) Line 245                C

               dbCore.dll!send_err(const caHdrLargeArray * curp, int status, client * client, const char * pformat, ...) Line 264  C

               dbCore.dll!camessage(client * client) Line 2571 C

                dbCore.dll!camsgtask(void * pParm) Line 129     C

               Com.dll!epicsWin32ThreadEntry(void * lpParameter) Line 501    C

 

Regards,

 

Freddie

 

From: tech-talk-bounces@aps.anl.gov [mailto:tech-talk-bounces@aps.anl.gov] On Behalf Of freddie.akeroyd@stfc.ac.uk
Sent: 26 July 2017 18:25
To: tech-talk@aps.anl.gov
Subject: IOC error message on camonitor disconnect

 

Hi,

 

I am seeing this using EPICS base 3.15.5 running on windows x64. I start softIOC.exe and then repeatedly connect to a PV with camonitor and then CTRL-C the camonitor, each time I see either:

 

epics> CAS: request from 127.0.0.1:20272 => CAS: Missaligned protocol rejected

CAS: Request from 127.0.0.1:20272 => cmmd=26209 cid=0x150008 type=14592 count=0 postsize=24885

CAS: Request from 127.0.0.1:20272 =>   available=0x0    N=1 paddr=0000000000000000

CAS: forcing disconnect from 127.0.0.1:20272

epics>

 

or

 

A call to 'assert(size <= ntohs ( pMsg->m_postsize ))'

    by thread 'CAS-client' failed in ../../../src/ioc/rsrv/caserverio.c line 357.

Dumping a stack trace of thread 'CAS-client':

[  000007FEEE71D565]

[  000007FEEE71D206]

[  000007FEEE714EF8]

[  000007FEED1A6AD5]

[  000007FEED1AC21B]

[  000007FEED1AC29B]

[  000007FEED1AAF1C]

[  000007FEED1AAAE5]

[  000007FEEE7177F1]

[  000007FECEB3B0A8]

[  000007FECEB3AD11]

[  00000000771459CD]

[  000000007727A561]

EPICS Release EPICS R3.15.5.

Local time is 2017-07-26 16:38:50.636232257 GMT Daylight Time

Please E-mail this message to the author or to tech-talk@aps.anl.gov

Calling epicsThreadSuspendSelf()

Thread CAS-client (000000000281A040) suspended

 

It looks similar to the message reported in http://www.aps.anl.gov/epics/tech-talk/2016/msg01828.php

 

If I break into the program at the point of the assert I see the following details:

 

size = 56

 

*pMsg

   m_cmmd=256

   m_postsize=6144

   m_dataType=5120

   m_count = 256

   m_cid = 16777216

  m_available = 16777216

 

We only recently updated to 3.15.5 and I didn’t remember seeing such messages before, so I connected to a machine still running 3.14 and confirmed that I don’t get any errors reported for the same test on 3.14.12.6.

 

Regards,

 

Freddie

 


Replies:
Re: IOC error message on camonitor disconnect Michael Davidsaver
References:
IOC error message on camonitor disconnect freddie.akeroyd

Navigate by Date:
Prev: IOC error message on camonitor disconnect freddie.akeroyd
Next: Re: Debian packages for debian 9 (stretch) ? Bo Jakobsen
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
Navigate by Thread:
Prev: IOC error message on camonitor disconnect freddie.akeroyd
Next: Re: IOC error message on camonitor disconnect Michael Davidsaver
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
ANJ, 27 Jul 2017 Valid HTML 4.01! · Home · News · About · Base · Modules · Extensions · Distributions · Download ·
· EPICS V4 · IRMIS · Talk · Bugs · Documents · Links · Licensing ·