Segmentation Fault When Filling a Tree

ROOT Version:6.24.06
Platform:_ :Centos 7
Compiler:_ :g++ 4.8.5

I faced a problem when writting a Tree , I have a Program which is used to convert a eventio format(CORSIKA output) to the root format, but my program only works in some situation, sometimes it can work, sometimes it won’t.

It will Segmentation Fault in the line I first try to Fill the Tree. And above picture is the place it will eventually stop , it have a very large size , (when it can works , the size will be a number ~ 10**5)

My main Program is on the github : gh repo clone zhipzhang/Read_CORSIKA (src/get_photons.cpp)

It has been sovled , thanks everyone!

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