svn commit: r197047 - head/share/man/man4

[Brooks Davis]

On Thu, Sep 10, 2009 at 02:33:27PM -0600, Warner Losh wrote:
> From: Brooks Davis <brooks at FreeBSD.org>
> Subject: svn commit: r197047 - head/share/man/man4
> Date: Wed, 9 Sep 2009 20:28:58 +0000 (UTC)
> 
> > Author: brooks
> > Date: Wed Sep  9 20:28:58 2009
> > New Revision: 197047
> > URL: http://svn.freebsd.org/changeset/base/197047
> > 
> > Log:
> >   Mention that a few ed(4) devices don't emit link state change notices
> >   and a workaround for dhclient.
> 
> I thought that I'd made it so that we report the link as active always
> for those devices that don't support reporting the link status in the
> hardware.  Is this really necessary still?

That fixes the case where dhclient never sees a link, but apparently
doesn't deal with the fact that in 8.0 dhclient never starts without
a link-up event.  It may be that we need to generate a single link-up
event at startup to provide an equivalent workaround.

-- Brooks

> Warner
> 
> >   Reviewed by:	 thierry
> >   MFC after:	3 days
> > 
> > Modified:
> >   head/share/man/man4/ed.4
> > 
> > Modified: head/share/man/man4/ed.4
> > ==============================================================================
> > --- head/share/man/man4/ed.4	Wed Sep  9 19:40:54 2009	(r197046)
> > +++ head/share/man/man4/ed.4	Wed Sep  9 20:28:58 2009	(r197047)
> > @@ -425,3 +425,21 @@ driver is slow by today's standards.
> >  .Pp
> >  PC Card attachment supports the D-Link DMF650TX LAN/Modem card's Ethernet
> >  port only at this time.
> > +.Pp
> > +Some devices supported by
> > +.Nm
> > +do no generate the link state change events used by
> > +.Xr devd 8
> > +to start
> > +.Xr dhclinet 8 .
> > +If you have problems with
> > +.Xr dhclient 8
> > +not starting and the device is always attached to the network it may
> > +be possible to work around this by changing
> > +.Dq Li DHCP
> > +to
> > +.Dq Li SYNCDHCP
> > +in the
> > +.Va ifconfig_ed0
> > +entry in
> > +.Pa /etc/rc.conf .
> > 
> 
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