EPICS Controls Argonne National Laboratory

Experimental Physics and
Industrial Control System

2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  <20202021  2022  2023  2024  Index 2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  <20202021  2022  2023  2024 
<== Date ==> <== Thread ==>

Subject: Re: Weird CAS hangup on IOC
From: Torsten Bögershausen via Core-talk <core-talk at aps.anl.gov>
To: Ralph Lange <ralph.lange at gmx.de>, EPICS Core Talk <core-talk at aps.anl.gov>
Date: Fri, 7 Feb 2020 15:22:34 +0000

 

 

From: Core-talk <core-talk-bounces at aps.anl.gov> on behalf of Ralph Lange via Core-talk <core-talk at aps.anl.gov>
Reply-To: Ralph Lange <ralph.lange at gmx.de>
Date: Friday 7 February 2020 at 11:32
To: EPICS Core Talk <core-talk at aps.anl.gov>
Subject: Re: Weird CAS hangup on IOC

 

>Fair starting point, yes. Sounds like a nice codeathon project for next week, actually.

> would probably restrict the re-looping to the case of listen() failing because of EADDRINUSE -

> don't want to get into infinite loops on other unrelated errors.

Yes,

 

>Maybe the listen() now happening in the spawned-off receive thread will have to be moved over...

Yes.

> Does calling listen() twice work? Does it do any harm?

No - yes.

I think this is what happens today - 2 processes listen to the same socket.

There can only be one, so the second one failes, right.

https://bugs.launchpad.net/epics-base/+bug/1862328  

Good luck with the codeathon!

 

Cheers,

~Ralph




Replies:
Re: Weird CAS hangup on IOC Ralph Lange via Core-talk
References:
Weird CAS hangup on IOC Ralph Lange via Core-talk
Re: Weird CAS hangup on IOC Michael Davidsaver via Core-talk
Re: Weird CAS hangup on IOC Ralph Lange via Core-talk
Re: Weird CAS hangup on IOC Michael Davidsaver via Core-talk
Re: Weird CAS hangup on IOC Ralph Lange via Core-talk
Re: Weird CAS hangup on IOC Torsten Bögershausen via Core-talk
Re: Weird CAS hangup on IOC Ralph Lange via Core-talk

Navigate by Date:
Prev: Re: Weird CAS hangup on IOC Ralph Lange via Core-talk
Next: Re: Weird CAS hangup on IOC Ralph Lange via Core-talk
Index: 2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  <20202021  2022  2023  2024 
Navigate by Thread:
Prev: Re: Weird CAS hangup on IOC Ralph Lange via Core-talk
Next: Re: Weird CAS hangup on IOC Ralph Lange via Core-talk
Index: 2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  <20202021  2022  2023  2024 
ANJ, 07 Feb 2020 Valid HTML 4.01! · Home · News · About · Base · Modules · Extensions · Distributions · Download ·
· Search · EPICS V4 · IRMIS · Talk · Bugs · Documents · Links · Licensing ·