=== 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. === 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.ex() [0x57d8e9] amrex::BLBackTrace::print_backtrace_info(_IO_FILE*) at /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BLBackTrace.cpp:108 1: ./Castro2d.gnu.TEST.MPI.ex() [0x57e959] amrex::BLBackTrace::handler(int) at /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BLBackTrace.cpp:55 2: /lib64/libc.so.6(+0x38600) [0x7fe246518600] ?? ??:0 3: ./Castro2d.gnu.TEST.MPI.ex() [0x73f90c] transx_on_ystates at /raid/testing/castro-gfortran/Castro//Source/hydro/trans.F90:633 (discriminator 2) 4: ./Castro2d.gnu.TEST.MPI.ex() [0x464b0d] Castro::construct_ctu_hydro_source(double, double) at /raid/testing/castro-gfortran/Castro//Source/hydro/Castro_ctu_hydro.cpp:803 5: ./Castro2d.gnu.TEST.MPI.ex() [0x443086] Castro::do_advance_ctu(double, double, int, int) at /raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance_ctu.cpp:130 6: ./Castro2d.gnu.TEST.MPI.ex() [0x443cea] Castro::subcycle_advance_ctu(double, double, int, int) at /raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance_ctu.cpp:482 7: ./Castro2d.gnu.TEST.MPI.ex() [0x43adca] Castro::advance(double, double, int, int) at /raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance.cpp:53 8: ./Castro2d.gnu.TEST.MPI.ex() [0x5c3325] amrex::Amr::timeStep(int, double, int, int, double) at /raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:2101 9: ./Castro2d.gnu.TEST.MPI.ex() [0x5b829b] amrex::Amr::coarseTimeStep(double) at /raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:2414 10: ./Castro2d.gnu.TEST.MPI.ex() [0x42026a] main at /raid/testing/castro-gfortran/Castro//Source/driver/main.cpp:133 11: /lib64/libc.so.6(__libc_start_main+0xf3) [0x7fe246504413] ?? ??:0 12: ./Castro2d.gnu.TEST.MPI.ex() [0x425dae] _start at ??:?