HEAD UP: non-MPSAFE network drivers to be disabled

[Julian Elischer]

Marcel Moolenaar wrote:
> On May 27, 2008, at 1:12 AM, Julian Elischer wrote:
> 
>> judging by the bug reports when things get broken there are still a
>> lot of people connected to the internet via dial up lines in places
>> off the beaten track, and still a lot of people who when travelling
>> do use dialup still. Some of these also use mpd. I can not say how 
>> many plan to keep using this in the future but it may be that the 
>> simplest answer is a completely separate sio driver that
>> just has netgraph hooks. I haven't talked with Ed yet but there
>> may be may ways to solve this problem.
> 
> Take a look at uart(4). It has been designed to allow different
> kernel interfaces. It currently supports TTYs and keyboards. It
> should not be too hard to have it hook into netgraph.
> 
> FYI,
> 


While this is a good idea on it's own, the difference between
what that achieves and what a line discipline achieves is that
a line disciplin is hardware independent and can even be used
on a virtual device.