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Date: Wed, 13 Jun 2007 07:39:26 -0700
From: "Maksim Yevmenkin" <maksim.yevmenkin@gmail.com>
To: "Robert Watson" <rwatson@freebsd.org>
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Cc: current@freebsd.org
Subject: Re: HEADS UP: IPX over IP support removed
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Robert,

[...]

> The following subsystems remain with NET_NEEDS_GIANT dependence:
>
> i4b -    ISDN framework, for which there is on-going work
>
> netatm - One of three ATM frameworks, for which there is on-going work
>
> ng_h4 -  Bluetooth serial drivers -- I know of no on-going work here
>
> IPSEC -  KAME IPSEC implementation, which will be removed and replaced with
>           FAST_IPSEC in 7.0, once IPv6 support is committed for it.
>
> Of the above, I am concerned about ng_h4 since I've heard nothing about
> potential work on this.  I believe the dependence issue has to do with
> entering the non-MPSAFE TTY code without Giant, and perhaps this is easily
> addressed...

yes, ng_h4(4) uses giant to enter tty code. i have some code, i wrote
long time ago, similar to what ng_tty(4) does, however, i was waiting
for tty changes.

i will see if i can fix it, or, since almost no one uses serial
bluetooth dongles anymore, retire it completely

thanks,
max