What is the current recommendation for handling multiple serial ports on a Gentoo server? In $dayjob we used to use Perl SX cards but recent kernels have marked the driver for these as 'broken'[1]. We have tried Digi Etherlite with the dgrp driver, but have had problems with write(2) blocking forever (despite being preceded by a select(2) call which indicates the file handle to be writable.
[1] As it depends on a no-longer supported and buggy facility in the tty code.
