https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96041
--- Comment #4 from anlauf at gcc dot gnu.org --- (In reply to Dominique d'Humieres from comment #3) > From several runs > > frame #0: 0x00000001000f11ed f951`gfc_free_namespace(gfc_namespace*) > [inlined] free_uop_tree(uop_tree=0x00000000000000ce) at symbol.c:3881:17 > frame #0: 0x00000001000f0b27 f951`::free_sym_tree(gfc_symtree *) > [inlined] free_sym_tree(sym_tree=0x00000000000000ce) at symbol.c:3899:17 > > It seems that some trees are not built properly. I set breakpoints in gdb in these routines but see nothing special on x86_64. Maybe some stack/heap corruption issue affecting ref counts?
