https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80850
--- Comment #6 from Jerry DeLisle <jvdelisle at gcc dot gnu.org> --- (In reply to DIL from comment #4) > Offset of zero is fine. I have never observed this SegFault before. I ran > the test on multiple machines with GCC/5.3.0, GCC/5.4.0, and GCC/6.3.1. > Also, as I mentioned before, the test passed the VALGRIND check. Would you > be able to point me to the specific line of the deepest user-level procedure > in the call stack where the segfault occurs? Was it line 744 of > __gfc_vector_MOD_vectoriterelementvalue (from your previous comment)? I set the breakpoint which you see in comment 3. I then ran the program. After the brak I simply stepped with the n (next) command until the segfault occurred. So yes at line 744 as shown.