https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68078
Bug ID: 68078 Summary: segfault with allocate and stat for derived types with default initialization Product: gcc Version: 6.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: fortran Assignee: unassigned at gcc dot gnu.org Reporter: Joost.VandeVondele at mat dot ethz.ch Target Milestone: --- The following testcase: > cat test.f90 TYPE foo INTEGER, DIMENSION(10000) :: data=42 END TYPE TYPE(foo), POINTER :: fooptr DO ALLOCATE(fooptr,stat=istat) IF (istat.NE.0) EXIT ENDDO END > ulimit -v 1000000 > gfortran -g test.f90 && ./a.out Program received signal SIGSEGV: Segmentation fault - invalid memory reference. Presumably the default initialization is attempted even if fooptr is null. In case of a present istat, this should not happen. Ifort deals fine with the case.