> Therefor the the tty_scedule_flip() function and replaced it > everywhere with the tty_flip_buffer_push() beause that function is > used the most by serial drivers and implements the work queue bypass > mechanism. So now when the user sets tty->low_latency on these devices the machine crashes ? This is the wrong direction - in fact we have a pile we need to move the other way ! If they resolve to the same thing in hard RT patches fine, that's a different question. Alan -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html