Re: bintree.c:33

[Beni Zihlmann <zihlmann@jlab.org>]

Hi All,
the error happened in the hitFDC.c code because some of the non 
sensitive volumes had a name starting
with the letters "FDA" which are tested for in savehits.c to see if the 
track is in a sensitive volume. The
result was that the track was in an insensitive volume while geant was 
thinking it has to calculate the
wire number of the chamber and the chamber number. As a consequence this 
chamber number resulted to be
zero which is of course not a valid number and the whole thing crashed.
The geometry file for the FDC has been fixed and put to the repository.
1) get last geometry files
2) go to  src/programs/Simulation/hddm
    make clean
    make install
3) go to src/programs/Simulation/HDGeant
    make clean
    make
This should do the trick

cheers,
Beni

> Blake,
>
> I explained this a couple of days back.  The bintree package is what 
> accumulates the hits according to detector segment and spits them out 
> in some predefined order (eg., ordered by wire, layer, package, 
> etc.).  Each hit is assigned a "mark" which is a hash of its 
> wire,layer,package,sector,... indices.  This forms a 32-bit integer 
> that is used to order the hits.  You should never have a mark=0.  If 
> you do, either a hit was registered with invalid indices or a memory 
> corruption has occurred.
>
> Does that help?  Do you want help debugging?  I can trace it for you 
> if you set up a web page with all of the details sufficient for me to 
> reproduce the problem.
>
> -Richard J.
>
>
> Blake Leverington wrote:
>> Hi all,
>>
>> Any idea what this error means?
>>
>> "hdgeant: bintree.c:33: getTwig: Assertion `node->mark >= 0' failed.
>> Abort"
>>
>> Cheers,
>> -Blake
>>
>>
>>
>>
>>   
>