Re: [tip:core/urgent] lockdep: Fix wrong assumption in match_held_lock

[Yong Zhang <yong.zhang0@gmail.com>]

On Wed, Aug 10, 2011 at 12:01:10PM +0200, Peter Zijlstra wrote:
> On Wed, 2011-08-10 at 10:58 +0800, Yong Zhang wrote:
> 
> > > Link: http://lkml.kernel.org/r/1312547787.28695.2.camel@twins
> > 
> > BTW, I can't open this link.
> 
> Gah! I did mess that up, but I've no idea how though, I usually
> copy/paste or let my script do it, in case of copy/paste one would
> assume I picked the wrong msg, but a grep through my sent folder doesn't
> find any email with that msgid.. and my script isn't imaginative enough
> to  just make one up like that. Anyway:
> 
>   lkml.kernel.org/r/1312969382.23148.1.camel@twins
> 
> should be the actual link, however that doesn't appear to work either,
> included the relevant headers of the actual email:
> 
> ---
> 
> Subject: Re: select_task_rq_fair: WARNING: at kernel/lockdep.c match_held_lock
> From: Peter Zijlstra <a.p.zijlstra@chello.nl>
> To: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
> Cc: Ingo Molnar <mingo@elte.hu>, Thomas Gleixner <tglx@linutronix.de>, 
>  Andrew Morton <akpm@linux-foundation.org>, linux-kernel@vger.kernel.org,
>  KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>, linux-mm@kvack.org
> Date: Fri, 05 Aug 2011 14:36:20 +0200
> In-Reply-To: <20110804155347.GB3562@swordfish.minsk.epam.com>
> References: <20110804141306.GA3536@swordfish.minsk.epam.com>
>          <1312470358.16729.25.camel@twins>
>          <20110804153752.GA3562@swordfish.minsk.epam.com>
>          <1312472867.16729.38.camel@twins>
>          <20110804155347.GB3562@swordfish.minsk.epam.com>
> 
> Message-ID: <1312969382.23148.1.camel@twins>

The actual one showed in maillist is like below:
---
Subject: Re: select_task_rq_fair: WARNING: at kernel/lockdep.c
 match_held_lock
From: Peter Zijlstra <a.p.zijlstra@chello.nl>
To: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>, Thomas Gleixner <tglx@linutronix.de>,
        Andrew Morton <akpm@linux-foundation.org>,
        linux-kernel@vger.kernel.org,
        KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
        linux-mm@kvack.org
Date: Fri, 05 Aug 2011 14:36:20 +0200
In-Reply-To: <20110804155347.GB3562@swordfish.minsk.epam.com>
References: <20110804141306.GA3536@swordfish.minsk.epam.com>
         <1312470358.16729.25.camel@twins>
         <20110804153752.GA3562@swordfish.minsk.epam.com>
         <1312472867.16729.38.camel@twins>
         <20110804155347.GB3562@swordfish.minsk.epam.com>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: 8BIT
X-Mailer: Evolution 3.0.2- 
Message-ID: <1312547780.28695.1.camel@twins>
---

Not sure how the difference happens.

Thanks,
Yong