i get a seg fault in this loop

gdb.out

(gdb) bt
#0  0x0000000000000000 in ?? ()
#1  0x0000555555587466 in bee_user_by_handle ()
#2  0x0000555555587685 in imcb_buddy_status ()
#3  0x000055555558793b in bee_user_new ()
#4  0x0000555555588740 in imcb_add_buddy ()
#5  0x00007ffff5253e51 in smsgcm_main_loop (data=0x5555558441c0, fd=<optimized out>, cond=<optimized out>) at smsgcm.c:19
#6  0x00007ffff77213cb in ?? () from /usr/lib/libglib-2.0.so.0
#7  0x00007ffff7720845 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#8  0x00007ffff7720b78 in ?? () from /usr/lib/libglib-2.0.so.0
#9  0x00007ffff7720f72 in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#10 0x000055555556740f in main ()

main_loop.c

int already_added_bob = 0;

/* main loop */
gboolean smsgcm_main_loop(gpointer data, gint fd, b_input_condition cond)
{
  struct im_connection *ic = data;

  // Check if we are still logged in...
  if (!g_slist_find(smsgcm_connections, ic))
    return 0;

  // Do stuff..
  //smsgcm_load_messages(ic);
  if( !already_added_bob ){
    imcb_add_buddy(ic, "bob", NULL);
    already_added_bob = 1;
  }

  // If we are still logged in run this function again after timeout.
  return (ic->flags & OPT_LOGGED_IN) == OPT_LOGGED_IN;
}