https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68927
Bug ID: 68927 Summary: Code aborts in deallocate statement with a stat= specified Product: gcc Version: 5.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: fortran Assignee: unassigned at gcc dot gnu.org Reporter: longb at cray dot com Target Milestone: --- > cat test.f90 program test use,intrinsic :: iso_c_binding real,target :: x(1000) real,pointer :: p (:) type(c_ptr) :: cp p => x cp = c_loc(p) call sub(cp) end program test subroutine sub(cp) use,intrinsic :: iso_c_binding real,pointer :: p(:) type(c_ptr) :: cp integer :: is call c_f_pointer(cp, p, [1000]) deallocate (p, stat=is) print *, "deallocate status: ", is end subroutine sub > gfortran -v Using built-in specs. COLLECT_GCC=/opt/gcc/5.2.0/bin/../snos/bin/gfortran COLLECT_LTO_WRAPPER=/opt/gcc/5.2.0/snos/libexec/gcc/x86_64-suse-linux/5.2.0/lto-wrapper Target: x86_64-suse-linux Configured with: ../cray-gcc-5.2.0/configure --prefix=/opt/gcc/5.2.0/snos --disable-nls --libdir=/opt/gcc/5.2.0/snos/lib --enable-languages=c,c++,fortran --with-gxx-include-dir=/opt/gcc/5.2.0/snos/include/g++ --with-slibdir=/opt/gcc/5.2.0/snos/lib --with-system-zlib --enable-shared --enable-__cxa_atexit --build=x86_64-suse-linux --with-ppl --with-cloog Thread model: posix gcc version 5.2.0 20150716 (Cray Inc.) (GCC) > gfortran test.f90 > ./a.out *** glibc detected *** ./a.out: munmap_chunk(): invalid pointer: 0x00007fff69364d90 *** ======= Backtrace: ========= /lib64/libc.so.6(+0x79098)[0x7f5f922e7098] ./a.out[0x4009c6] ./a.out[0x400aab] ./a.out[0x400ae2] /lib64/libc.so.6(__libc_start_main+0xe6)[0x7f5f9228cc36] ./a.out[0x4007b9] ======= Memory map: ======== [many lines of output deleted]