Using a (patched) 4.4.1 gofortran on linux/x86, try to compile the attached tcommon.f90
I get gfortran /tmp/tcommon.f90 /tmp/tcommon.f90: In function 'tf_ad_splitting_driver_plane': /tmp/tcommon.f90:109: internal compiler error: Segmentation fault This was incidentally uncovered while trying to work around bug 40737. Mixing common and modules is not good practice, but it shouldn't core dump. -- Summary: mixing common and modules elicits seg fault Product: gcc Version: 4.4.1 Status: UNCONFIRMED Severity: normal Priority: P3 Component: fortran AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: dh458 at oakapple dot net http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41627