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

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Date:	Mon, 12 Oct 2009 13:23:04 +0200
From:	Simon Kagstrom <simon.kagstrom@...insight.net>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Artem Bityutskiy <dedekind1@...il.com>,
	Artem Bityutskiy <Artem.Bityutskiy@...ia.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Aaro Koskinen <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

On Mon, 12 Oct 2009 13:15:45 +0200
Ingo Molnar <mingo@...e.hu> wrote:

> * Artem Bityutskiy <dedekind1@...il.com> wrote:
>
> > We use the mtdoops module which stores oopses on the Flash partition,
> > in order to make it possible to analyze them later. And mtdoops needs
> > to know whether 'panic_on_oops' is on or off. Thus, we need this
> > variable to be exported.
> 
> hm, why does it need it? Could you send the patch please that makes use 
> of it (as an easy way to explain the need for the export) - current 
> upstream drivers/mtd/mtdoops.c doesnt need it so it must be some pending 
> change.

You have the patch that requires it here:

  http://patchwork.ozlabs.org/patch/34732/

it's a fix to allow mtdoops to actually store oopses which happen when
panic_on_oops is set (before these would be missed as the write would
never be done).

// Simon

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