=== 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.ex(+0x1a5345) [0x558dd8907345] amrex::BLBackTrace::print_backtrace_info(_IO_FILE*) /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BLBackTrace.cpp:167:39 1: ./Castro1d.gnu.TEST.MPI.ex(+0x1a71c3) [0x558dd89091c3] amrex::BLBackTrace::handler(int) /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BLBackTrace.cpp:71:8 2: ./Castro1d.gnu.TEST.MPI.ex(+0x2400bf) [0x558dd89a20bf] __amrex_error_module_MOD_amrex_error0 /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_error_mod.F90:41 3: ./Castro1d.gnu.TEST.MPI.ex(+0x26ca27) [0x558dd89cea27] ca_compute_temp /raid/testing/castro-gfortran/Castro//Source/driver/Castro_util.F90:386 4: ./Castro1d.gnu.TEST.MPI.ex(+0x33bc8) [0x558dd8795bc8] Castro::computeTemp(amrex::MultiFab&, double, int) /raid/testing/castro-gfortran/Castro//Source/driver/Castro.cpp:3472:60 5: ./Castro1d.gnu.TEST.MPI.ex(+0x3442a) [0x558dd879642a] Castro::initData() /raid/testing/castro-gfortran/Castro//Source/driver/Castro.cpp:1201:5 6: ./Castro1d.gnu.TEST.MPI.ex(+0x1d9448) [0x558dd893b448] amrex::Amr::defBaseLevel(double, amrex::BoxArray const*, amrex::Vector > const*) /raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:2822:14 7: ./Castro1d.gnu.TEST.MPI.ex(+0x1e543c) [0x558dd894743c] amrex::Amr::initialInit(double, double, amrex::BoxArray const*, amrex::Vector > const*) inlined at /raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:1209:20 in amrex::Amr::init(double, double) /raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:1336:19 amrex::Amr::init(double, double) /raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:1209:20 8: ./Castro1d.gnu.TEST.MPI.ex(+0x248fc) [0x558dd87868fc] main /raid/testing/castro-gfortran/Castro//Source/driver/main.cpp:140:33 9: /lib64/libc.so.6(__libc_start_main+0xf3) [0x7f1b455851a3] __libc_start_main ??:0 10: ./Castro1d.gnu.TEST.MPI.ex(+0x29d2e) [0x558dd878bd2e] _start ??:0