linux-kernel - Re: [RFC PATCH 6/9] livepatch: create per-task consistency model

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Message-ID: <54DCB69E.3050600@suse.cz>
Date:	Thu, 12 Feb 2015 15:20:14 +0100
From:	Jiri Slaby <jslaby@...e.cz>
To:	Peter Zijlstra <peterz@...radead.org>
CC:	Josh Poimboeuf <jpoimboe@...hat.com>,
	Ingo Molnar <mingo@...hat.com>,
	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
	live-patching@...r.kernel.org, linux-kernel@...r.kernel.org,
	Seth Jennings <sjenning@...hat.com>,
	Jiri Kosina <jkosina@...e.cz>, Vojtech Pavlik <vojtech@...e.cz>
Subject: Re: [RFC PATCH 6/9] livepatch: create per-task consistency model

On 02/12/2015, 02:35 PM, Peter Zijlstra wrote:
> On Thu, Feb 12, 2015 at 02:16:28PM +0100, Jiri Slaby wrote:
>>> And what's wrong with using known good spots like the freezer?
>>
>> This was already discussed too. Please STA.
> 
> WTF is STA? You guys want something from me; I don't have time, not
> inclination to go hunt down whatever dark corner of the interweb
> contains your ramblings.

You definitely do not need STA, if you don't want to know the details. I
think repeating the whole thread would not be productive for all of us.

The short answer you can read from the above is: it is not possible. On
the top of that, Jiri provided you with a simple example to answer why.

> If you can't be arsed to explain things, I certainly cannot be arsed to
> consider your request.

Please see above.

> So you now have my full NAK on touching the scheduler, have at it, go
> deal with someone else.

Ok, we already got your expressed attitude towards live patching. This
is not a kind of input we were hoping for though. Could you comment on
the technical aspects and the proposed solutions instead?

thanks,
-- 
js
suse labs
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