[Halld-offline] patch 3 [Re: data challenge 2 and new release of JANA, jana_0.7.1p2 [Fwd: Re: segfaults in hd_root]]

[Mark Ito]

Data Challengers,

As you know, David was responding in real time to feedback; thus patch 3 
yesterday. Thanks to David again.

Just to close the loop, jana_0.7.1.p3 ("patch 3") is the current 
version. Upgrade optional as described below in the quoted message. 
Where you see "patch 2" read "patch 3".

   -- Mark

On 03/25/2014 04:29 PM, Mark Ito wrote:
> 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 cohttps://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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-- 
Mark M. Ito, Jefferson Lab,marki at jlab.org, (757)269-5295

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