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Date: Tue, 5 Nov 2002 04:20:00 -0500 (EST)
From: Zwane Mwaikambo <zwane@holomorphy.com>
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To: Russell King <rmk@arm.linux.org.uk>
cc: Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: 2.5.45 odd deref in serial_in
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On Tue, 5 Nov 2002, Russell King wrote:

> a) have to rely on interrupts running

Not really ;) If i'm successful i may get this working albeit only for 
specific boxes. Although we'd need an IDT at least, but interrupts may 
remain masked...

> b) have to buffer the data somewhere, which may possibly fill up and
>    then what do we do with the printk message
> 
> Bear in mind that dropping random printk messages because we've filled
> a buffer isn't acceptable.  Also note that the behaviour in this area
> hasn't changed since 2.4 times.
> 
> Obviously, the way to reduce the time spent writing console messages to
> the serial port is to increase the baud rate. 8)

I'm runnning 115200 :P It looks like a race however because i don't always 
trigger it, but when i do the trace is always the same. However i'm not 
going to make you run circles for my potentially dodgy code.

Cheers,
	Zwane
-- 
function.linuxpower.ca

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