linux-kernel - Re: [RFC][PATCH] introduce panic

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Date:	Fri, 06 Jul 2007 14:00:28 -0400
From:	Chuck Ebbert <cebbert@...hat.com>
To:	Clemens Koller <clemens.koller@...gramm.de>
CC:	Bodo Eggert <7eggert@....de>, linux-kernel@...r.kernel.org
Subject: Re: [RFC][PATCH] introduce panic_gently

On 07/06/2007 03:57 AM, Clemens Koller wrote:
> Bodo Eggert schrieb:
>> If the boot process failes to find init or the root fs, the cause has
>> usually scrolled off the screen, and because of the panic, it can't be
>> reached anymore.
>>
>> This patch introduces panic_gently, which will allow to use the
>> scrollback buffer and to reboot, but it can't be called from unsafe
>> context.
> 
> In the case where you introduced panic_gently() there is IMHO no reason
> to panic() at all. There is no bug which got hit, the machine just needs
> user intervention because of wrong boot parameters (in most cases).
> 
> What about asking the user for the correct root= or init= parameters
> and just retry/continue the boot process?
> 
> The 180seconds reboot timeout also doesn't make sense here. The problem
> won't go away after a reboot without user interaction.

What about GRUB fallbacks? The fallback image/kernel will start
automatically on reboot if you use that feature.

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