linux-kernel - Re: [PATCH] panic.c: export panic_on

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Date:	Mon, 12 Oct 2009 14:08:21 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Simon Kagstrom <simon.kagstrom@...insight.net>,
	Artem Bityutskiy <dedekind1@...il.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"Koskinen Aaro (Nokia-D/Helsinki)" <aaro.koskinen@...ia.com>,
	David Woodhouse <dwmw2@...radead.org>,
	linux-mtd <linux-mtd@...ts.infradead.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] panic.c: export panic_on_oops

> See my reply to David Woodhouse, i think we should add support for 
> buffering in kernel/printk.c and that would both fix your problems, 
> would simplify the driver (significantly!) and would expose the generic 
> buffering capability to other console drivers as well.

Buffering printk in general is bad. Given a driver needs only to provide
about 6 lines of code using a kfifo is it really that hard for the odd
code that wants to buffer to do that ?

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