https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90245
Martin Liška <marxin at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Last reconfirmed| |2019-4-25 CC| |rguenth at gcc dot gnu.org --- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> --- More clarification: 54 /* The second write access should not invoke the handler. */ 55 crasher (page); 56 /* Check that the handler was called only once. */ 57 if (handler_called != 1) 58 { 59 __builtin_printf ("handler_called == 1\n"); 60 exit (1); 61 } The segfault happens at line 55.