> For a first step, will always return that we received everything. > This make sure to we don't break anything when we will check receive_buf > return value. What about recursive calls ? We have some of those due to bugs elsewhere in the code - eg selection.c. I don't wish to throw spanners in the works of this effort but you can't actually make it work until you fix selection.c tty_io.c: tiocsti n_tty: n_tty_set_room The first two are unsafe recursive calls, the third one is totally broken on any port with low latency set and can result in all kinds of interesting failure cases. Basically you've got to actually address the fact that code is calling the ldisc methods wrongly, in parallel, without locking, and in an unsafe fashion that in some cases can arbitarily recurse. Until that is done you are never going to be able to debug the changes because it'll crash anyway if you poke it the right way. 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
