linux-kernel - Re: live kernel upgrades (was: live kernel patching design)

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Message-ID: <20150223115004.GB3206@Nokia-N900>
Date:	Mon, 23 Feb 2015 12:50:04 +0100
From:	Pavel Machek <pavel@....cz>
To:	Arjan van de Ven <arjanvandeven@...il.com>
Cc:	Dave Airlie <airlied@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Jiri Kosina <jkosina@...e.cz>, Ingo Molnar <mingo@...nel.org>,
	Vojtech Pavlik <vojtech@...e.com>,
	Josh Poimboeuf <jpoimboe@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...hat.com>,
	Seth Jennings <sjenning@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Arjan van de Ven <arjan@...radead.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Borislav Petkov <bp@...en8.de>, live-patching@...r.kernel.org
Subject: Re: live kernel upgrades (was: live kernel patching design)

> kernel update as step one, maybe we want this on a kernel module
> level:
> Hot-swap of kernel modules, where a kernel module makes itself go
> quiet and serializes its state ("suspend" pretty much), then gets
> swapped out (hot) by its replacement,
> which then unserializes the state and continues.

Hmm. So Linux 5.0 will be micro-kernel? :-).

							Pavek
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