=== 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.TRUESDC.ex(+0x156ad5) [0x556f2e33cad5] amrex::BLBackTrace::print_backtrace_info(_IO_FILE*) /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BLBackTrace.cpp:167:39 1: ./Castro1d.gnu.TEST.MPI.TRUESDC.ex(+0x158953) [0x556f2e33e953] amrex::BLBackTrace::handler(int) /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BLBackTrace.cpp:71:8 2: ./Castro1d.gnu.TEST.MPI.TRUESDC.ex(+0x2fb05) [0x556f2e215b05] Castro::read_params() /raid/testing/castro-gfortran/Castro//Source/driver/Castro.cpp:391:21 3: ./Castro1d.gnu.TEST.MPI.TRUESDC.ex(+0x4ad5c) [0x556f2e230d5c] Castro::variableSetUp() /raid/testing/castro-gfortran/Castro//Source/driver/Castro_setup.cpp:163:14 4: ./Castro1d.gnu.TEST.MPI.TRUESDC.ex(+0x192510) [0x556f2e378510] amrex::Amr::InitAmr() /raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:274:28 5: ./Castro1d.gnu.TEST.MPI.TRUESDC.ex(+0x1941a4) [0x556f2e37a1a4] amrex::Amr::Amr() /raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:240:1 6: ./Castro1d.gnu.TEST.MPI.TRUESDC.ex(+0x26f55) [0x556f2e20cf55] main /raid/testing/castro-gfortran/Castro//Source/driver/main.cpp:131:17 7: /lib64/libc.so.6(__libc_start_main+0xf3) [0x7f4a8c0c21a3] __libc_start_main ??:0 8: ./Castro1d.gnu.TEST.MPI.TRUESDC.ex(+0x2c35e) [0x556f2e21235e] _start ??:0