=== 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: ./Castro1d.gnu.TEST.MPI.OMP.TRUESDC.ex() [0x50cdb1] amrex::BLBackTrace::print_backtrace_info(_IO_FILE*) /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BLBackTrace.cpp:167:39 1: ./Castro1d.gnu.TEST.MPI.OMP.TRUESDC.ex() [0x50ec1c] amrex::BLBackTrace::handler(int) /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BLBackTrace.cpp:71:8 2: ./Castro1d.gnu.TEST.MPI.OMP.TRUESDC.ex() [0x42403c] Castro::read_params() /raid/testing/castro-gfortran/Castro//Source/driver/Castro.cpp:414:21 3: ./Castro1d.gnu.TEST.MPI.OMP.TRUESDC.ex() [0x436a8b] Castro::variableSetUp() /raid/testing/castro-gfortran/Castro//Source/driver/Castro_setup.cpp:161:14 4: ./Castro1d.gnu.TEST.MPI.OMP.TRUESDC.ex() [0x54258e] amrex::Amr::InitAmr() /raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:274:28 5: ./Castro1d.gnu.TEST.MPI.OMP.TRUESDC.ex() [0x54424e] amrex::Amr::Amr() /raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:240:1 6: ./Castro1d.gnu.TEST.MPI.OMP.TRUESDC.ex() [0x419be5] main /raid/testing/castro-gfortran/Castro//Source/driver/main.cpp:122:17 7: /lib64/libc.so.6(__libc_start_main+0xf3) [0x7f935b81a413] __libc_start_main ??:0 8: ./Castro1d.gnu.TEST.MPI.OMP.TRUESDC.ex() [0x41e12e] _start /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_ParallelDescriptor.H:48:23