On 2020-04-23 18:20:04 [+0200], To Jiri Kosina wrote: > There is no need to loop for longer. The message of too much work was > removed in commit > 9d7c249a1ef9b ("serial: 8250: drop the printk from serial8250_interrupt()") > This of course does not explain why the edge interrupt is constantly active but one step at a time. Sebastian