https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67367
kargl at gcc dot gnu.org changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |kargl at gcc dot gnu.org --- Comment #2 from kargl at gcc dot gnu.org --- (In reply to Jerry DeLisle from comment #1) > Program received signal SIGSEGV, Segmentation fault. > 0x00007ffff7ba152e in buf_read (s=0x6063b0, buf=<optimized out>, > nbyte=<optimized out>) at ../../../trunk/libgfortran/io/unix.c:535 > 535 memcpy (p, s->buffer, did_read); There are a bunch of bugs lurking in fortran/io.c. For example, flush(iostat=ios) causes a problem.