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

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Message-Id: <20150222150148.3c566837.akpm@linux-foundation.org>
Date:	Sun, 22 Feb 2015 15:01:48 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Jiri Kosina <jkosina@...e.cz>
Cc:	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>,
	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)

On Sun, 22 Feb 2015 20:13:28 +0100 (CET) Jiri Kosina <jkosina@...e.cz> wrote:

> But if you ask the folks who are hungry for live bug patching, they 
> wouldn't care.
> 
> You mentioned "10 seconds", that's more or less equal to infinity to them. 

10 seconds outage is unacceptable, but we're running our service on a
single machine with no failover.  Who is doing this??
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