=== 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: ./Castro3d.gnu.DEBUG.MPI.ex(+0x23929a) [0x5623e4e3129a] amrex::BLBackTrace::print_backtrace_info(_IO_FILE*) /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BLBackTrace.cpp:163:29 1: ./Castro3d.gnu.DEBUG.MPI.ex(+0x238ee4) [0x5623e4e30ee4] amrex::BLBackTrace::handler(int) /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BLBackTrace.cpp:71:8 2: ./Castro3d.gnu.DEBUG.MPI.ex(+0x106d41) [0x5623e4cfed41] amrex::ParallelDescriptor::Abort(int, bool) /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_ParallelDescriptor.cpp:224:22 3: ./Castro3d.gnu.DEBUG.MPI.ex(+0xb8419) [0x5623e4cb0419] amrex::Assert(char const*, char const*, int, char const*) /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX.cpp:284:1 4: ./Castro3d.gnu.DEBUG.MPI.ex(+0x75a50) [0x5623e4c6da50] Castro::print_source_change(amrex::Vector >) /raid/testing/castro-gfortran/Castro//Source/sources/Castro_sources.cpp:352:38 5: ./Castro3d.gnu.DEBUG.MPI.ex(+0x75e37) [0x5623e4c6de37] Castro::print_all_source_changes(double, bool) /raid/testing/castro-gfortran/Castro//Source/sources/Castro_sources.cpp:398:26 6: ./Castro3d.gnu.DEBUG.MPI.ex(+0x75147) [0x5623e4c6d147] Castro::do_old_sources(amrex::MultiFab&, amrex::MultiFab&, double, double, int, int) /raid/testing/castro-gfortran/Castro//Source/sources/Castro_sources.cpp:118:17 7: ./Castro3d.gnu.DEBUG.MPI.ex(+0x43b15) [0x5623e4c3bb15] Castro::do_advance_ctu(double, double, int, int) /raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance_ctu.cpp:96:28 8: ./Castro3d.gnu.DEBUG.MPI.ex(+0x44e50) [0x5623e4c3ce50] Castro::subcycle_advance_ctu(double, double, int, int) /raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance_ctu.cpp:482:56 9: ./Castro3d.gnu.DEBUG.MPI.ex(+0x410bb) [0x5623e4c390bb] Castro::advance(double, double, int, int) /raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance.cpp:55:55 10: ./Castro3d.gnu.DEBUG.MPI.ex(+0x2d12e7) [0x5623e4ec92e7] amrex::Amr::timeStep(int, double, int, int, double) /raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:2112:44 11: ./Castro3d.gnu.DEBUG.MPI.ex(+0x2d1b27) [0x5623e4ec9b27] amrex::Amr::coarseTimeStep(double) /raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:2439:26 12: ./Castro3d.gnu.DEBUG.MPI.ex(+0x5dd17) [0x5623e4c55d17] main /raid/testing/castro-gfortran/Castro//Source/driver/main.cpp:143:5 13: /lib64/libc.so.6(__libc_start_main+0xf3) [0x7f5879c501a3] __libc_start_main ??:0 14: ./Castro3d.gnu.DEBUG.MPI.ex(+0x157be) [0x5623e4c0d7be] _start ??:0