FORTRAN Segmentation Fault

Question

The project written in Fortran runs in different machine fine, but when taken to some other Linux machines it does not. It says segmentation fault on one of them, and on the other it says segmentation fault (core dumped). I did gdb of my program, it is very surprising that it points the segfault to the first line in the program where it should print value of a variable kept in module.

I am compiling all of them as follows:

gfortran -mcmodel=large -fPIC -fopenmp -lgfortran ...

Do you know why this might be the case? The gfortran version is 4.7.2 on Ubuntu 12.10.

First enable runtime checks -g -fcheck=all -fbacktrace . Try to run. Then try to run inside gdb. Return here with results. It may be caused by wrong indexes, undefined pointers or other stuff... — Vladimir F Героям слава
– Vladimir F Героям слава, Commented Dec 19, 2012 at 14:22
@VladimirF I did with those flags set, gdb still points to the same print statement... — tiki
– tiki, Commented Dec 19, 2012 at 18:07

M. S. B. · Accepted Answer · 2012-12-19 14:22:39Z

1

Perhaps you need to increase the stack size on those machines. There are answers on this subject on Stackoverflow. Check ulimit.

answered Dec 19, 2012 at 14:22

M. S. B.

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Jon Ericson Over a year ago

@torem: Try ulimit -s. If that is not unlimited, set the stack segment size with" ulimit -s unlimited.

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