e3.cpp (2.7 KB) CMakeLists.txt (525 Bytes) Please read tips for efficient and successful posting and posting code Please fill also the fields below. Note that root -b -q will tell you this info, and starting from 6.28/06 upwards, you can call .forum bug from the ROOT prompt to pre-populate a top…

[image] bellenot: RelWithDebInfo mode [image] I run it in release mode, it is ok now. Thanks very much.