linux-kernel - Re: [PATCH 8/8] printk: Add config option for disabling printk offloading

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Message-Id: <20140418115438.1e65e07af17e3ba6d7c554db@linux-foundation.org>
Date:	Fri, 18 Apr 2014 11:54:38 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Jan Kara <jack@...e.cz>
Cc:	One Thousand Gnomes <gnomes@...rguk.ukuu.org.uk>,
	LKML <linux-kernel@...r.kernel.org>, pmladek@...e.cz,
	Frederic Weisbecker <fweisbec@...il.com>,
	Steven Rostedt <rostedt@...dmis.org>
Subject: Re: [PATCH 8/8] printk: Add config option for disabling printk
 offloading

On Wed, 26 Mar 2014 20:28:15 +0100 Jan Kara <jack@...e.cz> wrote:

> > All the afflicted consoles are serial, all go via the uart layer as far
> > as I can see.
> > 
> > The uart layer has a queue mechanism that could be used
>   I'm sorry, I don't follow here - what can the uart queueing be used for?

Alan, I'm desperate to avoid adding all this complexity to core printk
code to solve such a rare problem.  It'd be great if you could flesh out
any alternative ideas please.
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