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------- Forwarded Message --------
Subject: 	Steps to reproduce Panoramix crash with latest upgrade SIMCOND tag
Date: 	Thu, 11 Mar 2021 14:11:59 +0000
From: 	Latham, Thomas <T.Latham@warwick.ac.uk>
To: 	Ben Couturier <ben.couturier@cern.ch>


 

Hi Ben,

 

Here is the recipe to reproduce the crash of Panoramix with the latest SIMCOND tag:

 

You can find in the following directory two myPanoramix.py scripts, which are modified from the $myPanoramix that comes with v30r0 to work for the upgrade (not sure if what I've done is the easiest thing to do but it works).

 

/afs/cern.ch/user/t/tlatham/public/PanoramixIssueMarch2021

 

They both load the latest DDDB tag but they differ in the SIMCOND tag that they load, the "latest-tags" script loads upgrade/sim-20201218-vc-md100, while the "working-tags" script load upgrade/sim-20201217-vc-md100.  The difference between those two tags is this MR:

https://gitlab.cern.ch/lhcb-conddb/SIMCOND/-/merge_requests/117

 

If I run:

 

lb-run Panoramix/v30r0 python myPanoramix-upgrade-latest-tags.py -f none

 

then in the Structure tree try to traverse down to select the VP, when I open up the BeforeMagnetRegion it crashes, with the following error in the terminal:

 

terminate called after throwing an instance of 'GaudiException'

  what():  GaudiException in loadObject() /dd/Structure/LHCb/BeforeMagnetRegion/Rich1

 

If I do the same with the myPanoramix-upgrade-working-tags.py script then it works OK.

 

Cheers,

Tom

 

 

-- 

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Thomas Latham

Senior Research Fellow

University of Warwick