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Subject: Re: [RFC] CONFIG_FORCE_MINIMALLY_SANE_CONFIG=y
To: Ingo Molnar <mingo@kernel.org>
References: <20160108122719.GG14673@pd.tnic> <568FB028.1030706@suse.cz>
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Cc: Borislav Petkov <bp@suse.de>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        =?UTF-8?B?TcOlbnMgUnVsbGfDpXJk?= <mans@mansr.com>,
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        x86-ml <x86@kernel.org>, Peter Zijlstra <a.p.zijlstra@chello.nl>,
        Thomas Gleixner <tglx@linutronix.de>, Jiri Olsa <jolsa@redhat.com>,
        Arnaldo Carvalho de Melo <acme@infradead.org>,
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From: Michal Marek <mmarek@suse.cz>
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Date: Tue, 19 Jan 2016 10:57:47 +0100
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On 2016-01-19 09:20, Ingo Molnar wrote:
> In fact on x86 I'd suggest we go farther than that and add a core set of selects 
> that can be disabled only through a sufficiently scary "I really know I'm doing 
> something utmost weird" (and default disabled) config option.

Agreed.


> From my own randconfig testing I can give a core list of must-have kernel options, 
> without which most distros (Fedora, RHEL, Ubuntu, SuSE) won't boot properly:
> 
> +config FORCE_MINIMALLY_SANE_CONFIG
> +	bool
> +	default y

You should add a prompt so that the option can be disabled. Or make it
default !EXPERT, to have a single "I know what I'm doing"-type of option.

Michal