=== 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(+0x14e975) [0x558c55014975] 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(+0x1507f3) [0x558c550167f3] amrex::BLBackTrace::handler(int) /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BLBackTrace.cpp:71:8 2: ./Castro2d.gnu.TEST.MPI.TRUESDC.ex(+0x26c47) [0x558c54eecc47] Castro::read_params() /raid/testing/castro-gfortran/Castro//Source/driver/Castro.cpp:391:21 3: ./Castro2d.gnu.TEST.MPI.TRUESDC.ex(+0x4086c) [0x558c54f0686c] Castro::variableSetUp() /raid/testing/castro-gfortran/Castro//Source/driver/Castro_setup.cpp:163:14 4: ./Castro2d.gnu.TEST.MPI.TRUESDC.ex(+0x1979e0) [0x558c5505d9e0] amrex::Amr::InitAmr() /raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:274:28 5: ./Castro2d.gnu.TEST.MPI.TRUESDC.ex(+0x199ab4) [0x558c5505fab4] amrex::Amr::Amr() /raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:240:1 6: ./Castro2d.gnu.TEST.MPI.TRUESDC.ex(+0x1f245) [0x558c54ee5245] main /raid/testing/castro-gfortran/Castro//Source/driver/main.cpp:131:17 7: /lib64/libc.so.6(__libc_start_main+0xf3) [0x7f4dc7eeb1a3] __libc_start_main ??:0 8: ./Castro2d.gnu.TEST.MPI.TRUESDC.ex(+0x23abe) [0x558c54ee9abe] _start ??:0