Error Deallocating Arrays

[Fozzeebear]

I am having some strange problems with a piece of F90 coding I am currently working on.

I have a module using a number of allocatable arrays. The code runs to the point where the arrays are due to be deallocated, then fails with a SIGSEGV error during the de-allocation step.

I know the arrays are previously allocated correctly, since I am able to successfully print their contents immediately before the deallocate step.

If I temporarily comment out one de-allocate step, the code fails when it later tries to de-allocate a later array.

The de-allocations fails even if I put "STAT=junk" in the deallocate statements.

I thought one potential cause of this could be memory space being over-written. Don't know how to check for this though.

Any suggestions to the possible cause of the problem would be most welcome. I'm running out of ideas!!

 

[xwb]

Are you exceeding the size of the allocated array?

Try this: allocate 1 more than required and fill the end one with a known pattern eg -12345. Before deallocation, check if the pattern is still there.