linux-kernel - Re: [RFC PATCH] cmdline: Hide "debug" from /proc/cmdline

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Message-ID: <yw1xbnwik8go.fsf@unicorn.mansr.com>
Date:	Thu, 03 Apr 2014 11:34:15 +0100
From:	Måns Rullgård <mans@...sr.com>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Jiri Kosina <jkosina@...e.cz>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Mateusz Guzik <mguzik@...hat.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>, Borislav Petkov <bp@...en8.de>,
	Ingo Molnar <mingo@...nel.org>, Mel Gorman <mgorman@...e.de>,
	Kay Sievers <kay@...y.org>
Subject: Re: [RFC PATCH] cmdline: Hide "debug" from /proc/cmdline

Linus Torvalds <torvalds@...ux-foundation.org> writes:

> On Wed, Apr 2, 2014 at 4:47 PM, Jiri Kosina <jkosina@...e.cz> wrote:
>>
>> Which doesn't really protect you from tasks that do open()/write()/close()
>> cycle for /dev/kmsg write every 2ms though.
>
> I don't think we should try to protect against wilful bad behavior
> unless that is shown to be necessary. Yeah, if it turns out that
> systemd really does that just to mess with us, we'd need to extend it,
> but in the absence of proof to the contrary, maybe this simple
> attached patch works?

Once is an accident.  Twice is incompetence.  Three times is malice.

-- 
Måns Rullgård
mans@...sr.com
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