=== 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(+0x16c1a5) [0x55e213b231a5] 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(+0x16e023) [0x55e213b25023] amrex::BLBackTrace::handler(int) /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BLBackTrace.cpp:71:8 2: /lib64/libc.so.6(+0x3c6b0) [0x7fd9244226b0] __restore_rt ??:0 3: ./Castro2d.gnu.TEST.MPI.TRUESDC.ex(+0x93bb0) [0x55e213a4abb0] Castro::ca_sdc_conservative_update(amrex::Box const&, double, amrex::Array4 const&, amrex::Array4 const&, amrex::Array4 const&, amrex::Array4 const&) /raid/testing/castro-gfortran/Castro//Source/sdc/sdc_util.cpp:367:5 4: ./Castro2d.gnu.TEST.MPI.TRUESDC.ex(+0x97d06) [0x55e213a4ed06] Castro::do_sdc_update(int, int, double) /raid/testing/castro-gfortran/Castro//Source/sdc/Castro_sdc.cpp:243:39 5: ./Castro2d.gnu.TEST.MPI.TRUESDC.ex(+0x4607c) [0x55e2139fd07c] Castro::do_advance_sdc(double, double, int, int) /raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance_sdc.cpp:216:18 6: ./Castro2d.gnu.TEST.MPI.TRUESDC.ex(+0x41a60) [0x55e2139f8a60] Castro::advance(double, double, int, int) /raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance.cpp:61:42 7: ./Castro2d.gnu.TEST.MPI.TRUESDC.ex(+0x1bc824) [0x55e213b73824] amrex::Amr::timeStep(int, double, int, int, double) /raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:2121:36 8: ./Castro2d.gnu.TEST.MPI.TRUESDC.ex(+0x1afead) [0x55e213b66ead] std::vector >::operator[](unsigned long) inlined at /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_Vector.H:33:54 in amrex::Amr::coarseTimeStep(double) /usr/include/c++/9/bits/stl_vector.h:1042:2 amrex::Vector >::operator[](unsigned long) /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_Vector.H:33:54 amrex::Amr::coarseTimeStep(double) /raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:2439:26 9: ./Castro2d.gnu.TEST.MPI.TRUESDC.ex(+0x225f6) [0x55e2139d95f6] main /raid/testing/castro-gfortran/Castro//Source/driver/main.cpp:143:33 10: /lib64/libc.so.6(__libc_start_main+0xf3) [0x7fd92440d1a3] __libc_start_main ??:0 11: ./Castro2d.gnu.TEST.MPI.TRUESDC.ex(+0x2a1ae) [0x55e2139e11ae] _start ??:0