[Halld-offline] data challenge 2 and new release of JANA, jana_0.7.1p2 [Fwd: Re: segfaults in hd_root]

[Mark Ito]

Folks,

Forwarding instructions from David on how to get the new tag. See below. 
It is the same message as was quoted in Richard's previous message.

For the data challenge, we are asking that each site decide for 
themselves whether they want to upgrade their version of JANA to this 
new version, jana_0.7.1p2 (patch 2). Of course, upgrading means 
re-building sim-recon against this version. Output data files and 
histograms made using patch 1 are OK and need not be re-done. Upgrade to 
patch 2 if you would like to eliminate even the possibility of the 
errors that Richard reported. If you are not experiencing problems, then 
continuing with patch 1 should be fine. If you do upgrade, for the sake 
of clean living, record the point you started up with patch 2.

Thanks to David for the extremely rapid turn-around on this.

   -- Mark

-------- Original Message --------
Subject: 	Re: segfaults in hd_root
Date: 	Tue, 25 Mar 2014 09:45:07 -0400
From: 	David Lawrence <davidl at jlab.org>
To: 	Richard Jones <richard.t.jones at uconn.edu>
CC: 	Mark M. Ito <marki at jlab.org>



Hi Richard and Mark,

   I believe I now have a fix for this. I was able to reproduce the problem and after making a “minor” modification, it seems to have gone away. The only change was to add the RTLD_NODELETE flag to the call to dlopen when attaching a plugin. This basically prevents the shared object from actually being detached, therefore, preventing the multiple destructor calls. I’ve made a new JANA release, 0.7.1p2 that has this one change in it. You can download the tar ball from here:

http://www.jlab.org/JANA/releases/jana_0.7.1p2.tgz

or check out the source from subversion here:

svn co https://phys12svn.jlab.org/repos/tags/jana_0.7.1p2


The minimal set of unit tests I have seemed to work OK with this so hopefully it will not give you any problems.

Regards,
-David



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