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Date:      Thu, 19 Nov 2009 10:28:58 -0800
From:      Jeremy Chadwick <freebsd@jdc.parodius.com>
To:        freebsd-stable@freebsd.org
Cc:        marcel@xcllnt.net
Subject:   Re: V8.x-PRE2 Serious PUC problem - Heads Up!
Message-ID:  <20091119182858.GA47308@icarus.home.lan>
In-Reply-To: <200911191433.nAJEXqqT095949@lava.sentex.ca>
References:  <4B0552B2.2020000@denninger.net> <200911191427.nAJERSl6095906@lava.sentex.ca> <4B0555CD.8050704@denninger.net> <200911191433.nAJEXqqT095949@lava.sentex.ca>

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On Thu, Nov 19, 2009 at 09:34:01AM -0500, Mike Tancsa wrote:
> At 09:27 AM 11/19/2009, Karl Denninger wrote:
> >It's not.
> >
> >What does that do?
> 
> From the man page,
> 
>      With flags encoded as:
>      0x00010   device is potential system console
>      0x00080   use this port for remote kernel debugging
>      0x00100   set RX FIFO trigger level to ``low'' (NS8250 only)
>      0x00200   set RX FIFO trigger level to ``medium low'' (NS8250 only)
>      0x00400   set RX FIFO trigger level to ``medium high'' (default, NS8250
>                only)
>      0x00800   set RX FIFO trigger level to ``high'' (NS8250 only)
> 
> You might still want to try adjusting how fast the FIFOs are flushed
> to see if thats your issue.

Has anyone considered involving Marcel Moolenaar in this conversation,
given that he's responsible for uart(4)?  :-)  I've CC'd him here.

-- 
| Jeremy Chadwick                                   jdc@parodius.com |
| Parodius Networking                       http://www.parodius.com/ |
| UNIX Systems Administrator                  Mountain View, CA, USA |
| Making life hard for others since 1977.              PGP: 4BD6C0CB |



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