Jakub,

A colleague of mine at Meteo France, Toulouse, managed to reduce a 
problem he had with our common weather forecasting code when using 
OpenMP down to the attached code and the transition from 4.9.0 -> 4.9.1.

In 4.9.1 OpenMP 4.0 was introduced. That is of course a big hammer to 
start looking for the culprit, but you are the best person to go to on 
this code.

The attached code produces with 4.9.1, 5.4 and 6.1:

    99999.0000       99999.0000       99999.0000       99999.0000

whereas it should produce four zeros.

Compile with gfortran -fopenmp elkhatib.f90.

Thanks for any help - kind regards,

PS: I will make a Bugzilla report if it doesn't ring a bell immediately.

-- 
Toon Moene - e-mail: toon@moene.org - phone: +31 346 214290
Saturnushof 14, 3738 XG  Maartensdijk, The Netherlands
At home: http://moene.org/~toon/; weather: http://moene.org/~hirlam/
Progress of GNU Fortran: http://gcc.gnu.org/wiki/GFortran#news