linux-kernel - Re: [PATCH v5] init: Disable defaults if init= fails

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Message-ID: <CALCETrUK07j8+iQ8oSW70sgePxg_GJY3ASBBS+U9fvp_f2Rz5w@mail.gmail.com>
Date:	Wed, 1 Oct 2014 11:13:14 -0700
From:	Andy Lutomirski <luto@...capital.net>
To:	Josh Triplett <josh@...htriplett.org>
Cc:	Rob Landley <rob@...dley.net>, frowand.list@...il.com,
	Andrew Morton <akpm@...ux-foundation.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Chuck Ebbert <cebbert.lkml@...il.com>,
	Randy Dunlap <rdunlap@...radead.org>,
	Shuah Khan <shuah.kh@...sung.com>
Subject: Re: [PATCH v5] init: Disable defaults if init= fails

On Wed, Oct 1, 2014 at 11:05 AM,  <josh@...htriplett.org> wrote:
> On Tue, Sep 30, 2014 at 09:53:56PM -0700, Andy Lutomirski wrote:
>> I significantly prefer default N.  Scripts that play with init= really
>> don't want the fallback, and I can imagine contexts in which it could
>> be a security problem.
>
> While I certainly would prefer the non-fallback behavior for init as
> well, standard kernel practice has typically been to use "default y" for
> previously built-in features that become configurable.  And I'd
> certainly prefer a compile-time configuration option like this (even
> with default y) over a "strictinit" kernel command-line option.
>

Fair enough.

So: "default y" for a release or two, then switch the default?  Having
default y will annoy virtme, though it's not the end of the world.
Virtme is intended to work with more-or-less-normal kernels.

--Andy
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