Experimental Physics and
Industrial Control System

Looking a bit closer, our case is different. We do not get the assertions but the IOC crashes after a while with the message:

04d5808-icslab--12881 > pthread_join error Invalid argument
*** Error in `/epics-thomas/base-7.0.3.1/bin/linux-x86_64/softIocPVA': malloc(): memory corruption: 0x00007f93280045c0 ***
======= Backtrace: =========
/lib64/libc.so.6(+0x82e86)[0x7f93bf1ace86]
/lib64/libc.so.6(__libc_calloc+0xb4)[0x7f93bf1b0564]
/epics-thomas/base-7.0.3.1/lib/linux-x86_64/libCom.so.3.17.6(+0x40ee7)[0x7f93bfd57ee7]
/epics-thomas/base-7.0.3.1/lib/linux-x86_64/libCom.so.3.17.6(epicsThreadCreateOpt+0xca)[0x7f93bfd58e5a]
/epics-thomas/base-7.0.3.1/lib/linux-x86_64/libCom.so.3.17.6(epicsThreadCreate+0x24)[0x7f93bfd52264]
/epics-thomas/base-7.0.3.1/lib/linux-x86_64/libdbCore.so.3.17.0(+0x61e38)[0x7f93c0255e38]
/epics-thomas/base-7.0.3.1/lib/linux-x86_64/libCom.so.3.17.6(+0x413cc)[0x7f93bfd583cc]
/lib64/libpthread.so.0(+0x7e65)[0x7f93bef15e65]
/lib64/libc.so.6(clone+0x6d)[0x7f93bf22888d]

We have some initial clues to what is going on here. I will get back to this tomorrow, with more details and running with debug symbols enabled.

I will open a ticket when I can provide a better description.

Timo

On 27/07/20 17:55, "Michael Davidsaver" <mdavidsaver at gmail.com> wrote:

    On 7/27/20 5:04 AM, Timo Korhonen via Tech-talk wrote:
    > Hello everybody,
    > 
    >  
    > 
    > We are seeing CAS/IOC crashes that look very similar to what Oleg and Dirk reported a couple of years ago, in this thread: https://epics.anl.gov/tech-talk/2018/msg01101.php
    > 
    >  
    > 
    > However, the thread seems to end there. Were there any more results or insights into this issue?
    
    Can you provide file+line numbers for the failed assertions circa Base 7.0?
    It would probably be good to open a ticket as well.
    

References:

Old-ish CAS issue Timo Korhonen via Tech-talk

Re: Old-ish CAS issue Michael Davidsaver via Tech-talk

Navigate by Date:

Prev: RE: asyn TracMask + asynMotor : function= Pearson, Matthew R. via Tech-talk

Next: Re: How to check IOC connection Jong Woo Kim via Tech-talk

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: Re: Old-ish CAS issue Michael Davidsaver via Tech-talk

Next: pvData Introspection: Change Structure at run time Madden, Timothy J. via Tech-talk

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