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From: Jiri Slaby <jslaby@suse.cz>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>,
	Ingo Molnar <mingo@redhat.com>,
	Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>,
	live-patching@vger.kernel.org, linux-kernel@vger.kernel.org,
	Seth Jennings <sjenning@redhat.com>,
	Jiri Kosina <jkosina@suse.cz>, Vojtech Pavlik <vojtech@suse.cz>
Subject: Re: [RFC PATCH 6/9] livepatch: create per-task consistency model
Date: Thu, 12 Feb 2015 15:20:14 +0100	[thread overview]
Message-ID: <54DCB69E.3050600@suse.cz> (raw)
In-Reply-To: <20150212133540.GZ23123@twins.programming.kicks-ass.net>

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

  parent reply	other threads:[~2015-02-12 14:20 UTC|newest]

Thread overview: 106+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-02-09 17:31 [RFC PATCH 0/9] livepatch: consistency model Josh Poimboeuf
2015-02-09 17:31 ` [RFC PATCH 1/9] livepatch: simplify disable error path Josh Poimboeuf
2015-02-13 12:25   ` Miroslav Benes
2015-02-18 17:03     ` Petr Mladek
2015-02-18 20:07   ` Jiri Kosina
2015-02-09 17:31 ` [RFC PATCH 2/9] livepatch: separate enabled and patched states Josh Poimboeuf
2015-02-10 16:44   ` Jiri Slaby
2015-02-10 17:21     ` Josh Poimboeuf
2015-02-13 12:57   ` Miroslav Benes
2015-02-13 14:39     ` Josh Poimboeuf
2015-02-13 14:46       ` Miroslav Benes
2015-02-09 17:31 ` [RFC PATCH 3/9] livepatch: move patching functions into patch.c Josh Poimboeuf
2015-02-10 18:27   ` Jiri Slaby
2015-02-10 18:50     ` Josh Poimboeuf
2015-02-13 14:28   ` Miroslav Benes
2015-02-13 15:09     ` Josh Poimboeuf
2015-02-09 17:31 ` [RFC PATCH 4/9] livepatch: get function sizes Josh Poimboeuf
2015-02-10 18:30   ` Jiri Slaby
2015-02-10 18:53     ` Josh Poimboeuf
2015-02-09 17:31 ` [RFC PATCH 5/9] sched: move task rq locking functions to sched.h Josh Poimboeuf
2015-02-10 10:48   ` Masami Hiramatsu
2015-02-10 14:54     ` Josh Poimboeuf
2015-02-09 17:31 ` [RFC PATCH 6/9] livepatch: create per-task consistency model Josh Poimboeuf
2015-02-10 10:58   ` Masami Hiramatsu
2015-02-10 14:59     ` Josh Poimboeuf
2015-02-10 15:59   ` Miroslav Benes
2015-02-10 16:56     ` Josh Poimboeuf
2015-02-11 16:28       ` Miroslav Benes
2015-02-11 20:23         ` Josh Poimboeuf
2015-02-10 19:27   ` Seth Jennings
2015-02-10 19:32     ` Josh Poimboeuf
2015-02-11 10:21   ` Miroslav Benes
2015-02-11 20:19     ` Josh Poimboeuf
2015-02-12 10:45       ` Miroslav Benes
2015-02-12  3:21   ` Josh Poimboeuf
2015-02-12 11:56     ` Peter Zijlstra
2015-02-12 12:25       ` Jiri Kosina
2015-02-12 12:36         ` Peter Zijlstra
2015-02-12 12:39           ` Jiri Kosina
2015-02-12 12:39         ` Peter Zijlstra
2015-02-12 12:42           ` Jiri Kosina
2015-02-12 13:01             ` Josh Poimboeuf
2015-02-12 12:51       ` Josh Poimboeuf
2015-02-12 13:08         ` Peter Zijlstra
2015-02-12 13:16           ` Jiri Kosina
2015-02-12 14:20             ` Josh Poimboeuf
2015-02-12 14:27               ` Jiri Kosina
2015-02-12 13:16           ` Jiri Slaby
2015-02-12 13:35             ` Peter Zijlstra
2015-02-12 14:08               ` Jiri Kosina
2015-02-12 15:24                 ` Josh Poimboeuf
2015-02-12 14:20               ` Jiri Slaby [this message]
2015-02-12 14:32           ` Jiri Kosina
2015-02-18 20:17             ` Ingo Molnar
2015-02-18 20:44               ` Vojtech Pavlik
2015-02-19  9:52                 ` Peter Zijlstra
2015-02-19 10:11                   ` Vojtech Pavlik
2015-02-19 10:51                     ` Peter Zijlstra
2015-02-12 13:26     ` Jiri Slaby
2015-02-12 15:48       ` Josh Poimboeuf
2015-02-14 11:40   ` Jiri Slaby
2015-02-17 14:59     ` Josh Poimboeuf
2015-02-16 14:19   ` Miroslav Benes
2015-02-17 15:10     ` Josh Poimboeuf
2015-02-17 15:48       ` Miroslav Benes
2015-02-17 16:01         ` Josh Poimboeuf
2015-02-18 12:42           ` Miroslav Benes
2015-02-18 13:15             ` Josh Poimboeuf
2015-02-18 13:42               ` Miroslav Benes
2015-02-09 17:31 ` [RFC PATCH 7/9] proc: add /proc/<pid>/universe to show livepatch status Josh Poimboeuf
2015-02-10 18:47   ` Jiri Slaby
2015-02-10 18:57     ` Josh Poimboeuf
2015-02-09 17:31 ` [RFC PATCH 8/9] livepatch: allow patch modules to be removed Josh Poimboeuf
2015-02-10 19:02   ` Jiri Slaby
2015-02-10 19:57     ` Josh Poimboeuf
2015-02-11 10:55       ` Jiri Slaby
2015-02-11 18:39         ` Josh Poimboeuf
2015-02-12 15:22     ` Miroslav Benes
2015-02-13 12:44       ` Josh Poimboeuf
2015-02-13 16:04       ` Josh Poimboeuf
2015-02-13 16:17         ` Miroslav Benes
2015-02-13 20:49           ` Josh Poimboeuf
2015-02-16 16:06             ` Miroslav Benes
2015-02-17 15:55               ` Josh Poimboeuf
2015-02-17 16:38                 ` Miroslav Benes
2015-02-09 17:31 ` [RFC PATCH 9/9] livepatch: update task universe when exiting kernel Josh Poimboeuf
2015-02-16 10:16   ` Jiri Slaby
2015-02-17 14:58     ` Josh Poimboeuf
2015-02-09 23:15 ` [RFC PATCH 0/9] livepatch: consistency model Jiri Kosina
2015-02-10  3:05   ` Josh Poimboeuf
2015-02-10  7:21     ` Jiri Kosina
2015-02-10  8:57 ` Jiri Kosina
2015-02-10 14:43   ` Josh Poimboeuf
2015-02-10 11:16 ` Masami Hiramatsu
2015-02-10 15:59   ` Josh Poimboeuf
2015-02-10 17:29     ` Josh Poimboeuf
2015-02-13 10:14 ` Jiri Kosina
2015-02-13 14:19   ` Josh Poimboeuf
2015-02-13 14:22     ` Jiri Kosina
2015-02-13 14:40       ` Miroslav Benes
2015-02-13 14:55         ` Josh Poimboeuf
2015-02-13 14:41       ` Josh Poimboeuf
2015-02-24 11:27         ` Masami Hiramatsu
2015-03-10 16:23 ` Josh Poimboeuf
2015-03-10 21:02   ` Jiri Kosina
2015-03-10 21:30     ` Josh Poimboeuf

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