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

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Message-ID: <533D95C9.1020601@zytor.com>
Date:	Thu, 03 Apr 2014 10:09:29 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	"Theodore Ts'o" <tytso@....edu>, Joerg Roedel <joro@...tes.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	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>,
	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

On 04/03/2014 10:05 AM, Theodore Ts'o wrote:
> 
> So there are so many other ways of solving this problem without trying
> to abuse the kernel logging facilities (which were never intended to
> be a general-purpose syslog replacement).  I suspect some systemd
> developer was being lazy....
> 

Having the kernel be the keeper of the logging IPC isn't at all
unreasonable.  However, kmsg in its current form isn't adequate.
Augmenting it into a proper logging IPC might be the right thing to do.
 (Hmm... new IPC... does this sound a bit like kdbus to anyone?)

The original motivation for /dev/kmsg was of course in the context of
klibc to maintain the current behavior of the items I was hoping to move
from kernel to user space.

	-hpa


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