Date: Fri, 1 Aug 2008 09:01:39 -0400 From: John Baldwin <jhb@freebsd.org> To: freebsd-current@freebsd.org Cc: FreeBSD Arch <arch@freebsd.org>, Peter Jeremy <peterjeremy@optushome.com.au>, Poul-Henning Kamp <phk@phk.freebsd.dk>, Ed Schouten <ed@80386.nl> Subject: Re: Reminder: non-mpsafetty drivers to be connected on Sunday Message-ID: <200808010901.39545.jhb@freebsd.org> In-Reply-To: <64491.1217595198@critter.freebsd.dk> References: <64491.1217595198@critter.freebsd.dk>
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On Friday 01 August 2008 08:53:18 am Poul-Henning Kamp wrote: > In message <20080801124845.GZ1359@server.vk2pj.dyndns.org>, Peter Jeremy > writes > > >On 2008-Aug-01 13:40:53 +0200, Ed Schouten <ed@80386.nl> wrote: > >>One of the most important things I forgot to mention: I've attached the > >>patch I'm going to commit. Comments on the patch are very welcome! > > > >This patch just disconnects the majority of the serial drivers from > >the build. Whilst I support the aim of making the TTY subsystem > >MPSAFE, as I've previously stated, IMO, just disconnecting everything > >is not the way forward. > > I got a syntax error on this email Peter, didn't you mean to write: > > "Great work Ed, let me send you some patches" > > > A MPSAFE tty subsystem is infinitely more important than any particular > non-console tty driver. > > If FreeBSD should have digi(4) support in the future somebody should > spend some quality with the driver, instead of stopping Ed from > making much necessary progress. On the other hand, we didn't throw out half the NIC drivers when we did the MPSAFE network stack locking either, we allowed for a transition that gave time for individual drivers to be locked. -- John Baldwin
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