https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92836
--- Comment #4 from Jerry DeLisle <jvdelisle at gcc dot gnu.org> ---
Removing close statement:
$ ./a.out
0 8 4
2 8 4
-10
5 8 4
4 8 4
3 8 4
At line 16 of file bug1.f90
Fortran runtime error: End of record
6 8 4
At line 14 of file bug1.f90
Internal Error: Unit number changed
At line 14 of file bug1.f90
What I speculate is happening is that newunit is getting invoked in the middle
of trying to close the unit on a different thread and we do end up with
duplicate unit numbers assigned by newunit. I need to look at that code yet.
Exploring further here.
