linux-kernel - Re: Support for netconsole as default tty/console?

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Message-ID: <s5hvbust4bn.wl%tiwai@suse.de>
Date:	Wed, 02 Apr 2014 12:26:36 +0200
From:	Takashi Iwai <tiwai@...e.de>
To:	Struan Bartlett <struan.bartlett@...il.com>
Cc:	Andreas Schwab <schwab@...e.de>,
	One Thousand Gnomes <gnomes@...rguk.ukuu.org.uk>,
	linux-kernel@...r.kernel.org
Subject: Re: Support for netconsole as default tty/console?

At Tue, 1 Apr 2014 10:34:27 +0200,
Struan Bartlett wrote:
> 
> On 31 March 2014 14:34, Andreas Schwab <schwab@...e.de> wrote:
> > One Thousand Gnomes <gnomes@...rguk.ukuu.org.uk> writes:
> >
> >> It's however implemented and present. The rest is between you and the
> >> relevant Kconfig maintainer. I'm sure you count as an expert ;-)
> >
> > Indeed.
> >
> > http://lists.opensuse.org/opensuse-kernel/2014-03/msg00071.html
> 
> I have just completed an implementation of a tty driver for
> netconsole, which I was about to submit as a patch. When the kernel
> command line is set accordingly (console=netcon0), it has the desired
> effect of taking over output to /dev/console when it is loaded. Would
> you say this work is wasted, or that it's worth submitting the patch
> anyway?
> 
> There are differences to the ttyprintk approach. ttyprintk is
> currently kernel-only, and not available as a module.

Actually, this can be easily fixed.  I'm going to submit a patch (and
another fix patch for the driver's error path).

Note that they don't mean to object against your patching netconsole.
I find also it more convenient to use directly netconsole.


thanks,

Takashi
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