=== If no file names and line numbers are shown below, one can run addr2line -Cpfie my_exefile my_line_address to convert `my_line_address` (e.g., 0x4a6b) into file name and line number. Or one can use amrex/Tools/Backtrace/parse_bt.py. === Please note that the line number reported by addr2line may not be accurate. One can use readelf -wl my_exefile | grep my_line_address' to find out the offset for that line. 0: ./Castro2d.gnu.TEST.MPI.TRUESDC.ex(+0x15ebf5) [0x5644e3e24bf5] amrex::BLBackTrace::print_backtrace_info(_IO_FILE*) /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BLBackTrace.cpp:167:39 1: ./Castro2d.gnu.TEST.MPI.TRUESDC.ex(+0x160a73) [0x5644e3e26a73] amrex::BLBackTrace::handler(int) /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BLBackTrace.cpp:71:8 2: ./Castro2d.gnu.TEST.MPI.TRUESDC.ex(+0x274c7) [0x5644e3ced4c7] Castro::read_params() /raid/testing/castro-gfortran/Castro//Source/driver/Castro.cpp:391:21 3: ./Castro2d.gnu.TEST.MPI.TRUESDC.ex(+0x440cc) [0x5644e3d0a0cc] Castro::variableSetUp() /raid/testing/castro-gfortran/Castro//Source/driver/Castro_setup.cpp:163:14 4: ./Castro2d.gnu.TEST.MPI.TRUESDC.ex(+0x1a7c60) [0x5644e3e6dc60] amrex::Amr::InitAmr() /raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:274:28 5: ./Castro2d.gnu.TEST.MPI.TRUESDC.ex(+0x1a9d34) [0x5644e3e6fd34] amrex::Amr::Amr() /raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:240:1 6: ./Castro2d.gnu.TEST.MPI.TRUESDC.ex(+0x1fb65) [0x5644e3ce5b65] main /raid/testing/castro-gfortran/Castro//Source/driver/main.cpp:131:17 7: /lib64/libc.so.6(__libc_start_main+0xf3) [0x7f5785ccd1a3] __libc_start_main ??:0 8: ./Castro2d.gnu.TEST.MPI.TRUESDC.ex(+0x2446e) [0x5644e3cea46e] _start ??:0