linux-kernel - Re: [PATCH v3 00/15] livepatch: hybrid consistency model

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Message-ID: <1481348777.28041.1.camel@gmail.com>
Date:   Sat, 10 Dec 2016 16:46:17 +1100
From:   Balbir Singh <bsingharora@...il.com>
To:     Josh Poimboeuf <jpoimboe@...hat.com>, Jessica Yu <jeyu@...hat.com>,
        Jiri Kosina <jikos@...nel.org>,
        Miroslav Benes <mbenes@...e.cz>, Petr Mladek <pmladek@...e.com>
Cc:     linux-s390@...r.kernel.org, Vojtech Pavlik <vojtech@...e.com>,
        Peter Zijlstra <peterz@...radead.org>, x86@...nel.org,
        Heiko Carstens <heiko.carstens@...ibm.com>,
        linux-kernel@...r.kernel.org, Andy Lutomirski <luto@...nel.org>,
        live-patching@...r.kernel.org, Jiri Slaby <jslaby@...e.cz>,
        linuxppc-dev@...ts.ozlabs.org, Ingo Molnar <mingo@...nel.org>,
        Chris J Arges <chris.j.arges@...onical.com>
Subject: Re: [PATCH v3 00/15] livepatch: hybrid consistency model

On Thu, 2016-12-08 at 12:08 -0600, Josh Poimboeuf wrote:
> Dusting the cobwebs off the consistency model again.  This is based on
> linux-next/master.
> 
> v1 was posted on 2015-02-09:
> 
>   https://lkml.kernel.org/r/cover.1423499826.git.jpoimboe@redhat.com
> 
> v2 was posted on 2016-04-28:
> 
>   https://lkml.kernel.org/r/cover.1461875890.git.jpoimboe@redhat.com
> 
> The biggest issue from v2 was finding a decent way to detect preemption
> and page faults on the stack of a sleeping task.  

Could you please elaborate on this? Preemption of a sleeping task and
faults as in the future (time) preemption and faults?

Balbir Singh.