(gdb) c
Continuing.
Detaching after fork from child process 6765.

Program received signal SIGSEGV, Segmentation fault.
0x00007f02fa312364 in wl_list_insert (list=0x24a6500, elm=0x24a72e0) at wayland-util.c:47
47              elm->next->prev = elm;
(gdb) inspect elm
$1 = (struct wl_list *) 0x24a72e0
(gdb) inspect elm->next
$2 = (struct wl_list *) 0x0
(gdb) q