linux-kernel - Re: [PATCH] detour TTY driver

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Message-ID: <20100825191437.1df57c9d@lxorguk.ukuu.org.uk>
Date:	Wed, 25 Aug 2010 19:14:37 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Greg KH <gregkh@...e.de>
Cc:	Kay Sievers <kay.sievers@...y.org>,
	Samo Pogacnik <samo_pogacnik@....net>,
	linux kernel <linux-kernel@...r.kernel.org>,
	linux-embedded <linux-embedded@...r.kernel.org>
Subject: Re: [PATCH] detour TTY driver - now ttyprintk

> > > That's one extra process, not that much, right?
> > 
> > About 150K or so way too much and its not robust.
> 
> Fair enough.  So, with this driver, would it make sense for the distros
> to switch over to using it instead of the above line in their initrd?

Distros no - I doubt any normal PC distro would turn the facility on.
Embedded - yes especially deeply embedded.

> Ok, I didn't realize it really was that big.

libc page tables
app page tables
stacks (kernel and user)
arguments/exec page
buffers

Yes - it soon adds up.

Alan
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