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  <20182019  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  <20182019 
<== Date ==> <== Thread ==>

Subject: Re: IOC crash
From: "Ronald L. Sluiter" <sluiter@anl.gov>
To: Hinko Kocevar <hinkocevar@gmail.com>
Cc: "tech-talk@aps.anl.gov" <tech-talk@aps.anl.gov>
Date: Mon, 22 Jan 2018 11:10:43 -0600
As an alternative to the using the core dump, you could rebuild your system and the IOC using the "linux-x86_64-debug" EPICS_HOST_ARCH. After that you have to test the IOC to see if the same caserverio.c line #357 assert() error occurs under the non-optimized "linux-x86_64-debug" architecture.

If you can re-create the problem using the "linux-x86_64-debug" architecture, then you can use a source-code debugger (e.g., gdb or ddd) to diagnose it. You would need to place an assembly-code
level breakpoint in the assert() code to determine why the assert() failed.

Ron

On 01/19/2018 10:35 AM, Hinko Kocevar wrote:
Thanks again!

I can see that if I run a faulty app that would trigger core dump the
file is saved into /var/spool/abrt folder.

I can not see IOC core dump there.. Might be due to redhat/centos abrt
service default settings that only saves core dump if the package was
installed using yum or similar. My IOC was not. This, I changed now,
but that means I need to reproduce the crash. Will update you on the
progress.

/Hinko

On Fri, Jan 19, 2018 at 4:17 PM, Michael Davidsaver
<mdavidsaver@gmail.com> wrote:
On 01/19/2018 12:31 AM, Hinko Kocevar wrote:
if core saving was
enabled at the time of the crash..
Run

ulimit -a
and look for a line like:

core file size          (blocks, -c) 0
If this is zero, then core dumps are disabled.  Run

ulimit -c unlimited
To enable core dumps.  You can use a non-zero
value to limit the core file size, but that's
probably not relevant unless your IOC is using
a _lot_ of memory.




References:
IOC crash Hinko Kocevar
Re: IOC crash Mark Rivers
Re: IOC crash Hinko Kocevar
Re: IOC crash Michael Davidsaver
Re: IOC crash Hinko Kocevar
Re: IOC crash Michael Davidsaver
Re: IOC crash Hinko Kocevar

Navigate by Date:
Prev: Re: Seq-2.2.5 compilation on windows Mark Rivers
Next: RE: Seq-2.2.5 compilation on windows 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  <20182019 
Navigate by Thread:
Prev: Re: IOC crash Hinko Kocevar
Next: Re: IOC crash 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  <20182019 
ANJ, 22 Jan 2018 Valid HTML 4.01! · Home · News · About · Base · Modules · Extensions · Distributions · Download ·
· Search · EPICS V4 · IRMIS · Talk · Bugs · Documents · Links · Licensing ·