Hello, I wrote a very long (around 10.000 lines) code .f90. The last version of the program i modified, is normally compiled with gfortran and runs in a loop, since giving me BUS ERROR. So I restarted from the last-working version, that never gave me any problem, but re-compiling and launching it, gives me the same bus error. After some check, i realized that all my versions show this error, that is very strange because I always runned them without errors. I thought it was a gfortran problem, so reinstalled it, but the situation did not change. To make the debug, i lauched the last version with valgrind, and in this ways it runs without problem. Moreover, I tried to compile and run the program with another compiler, ifort, and IT WORKS. So i move on windows and linux, and gfortran there compiles my code with no errors. Have I to consider this as an error or a type of incompatibility between gfortran(version 4.9.0) and my system? (10.9.5)?