linux-kernel - Re: [PATCH for stable] tracing: Consolidate protection of reader access to the ring buffer

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Date:	Tue, 22 Jun 2010 09:36:44 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Greg KH <gregkh@...e.de>
Cc:	LKML <linux-kernel@...r.kernel.org>, stable <stable@...nel.org>,
	Johannes Berg <johannes@...solutions.net>,
	Lai Jiangshan <laijs@...fujitsu.com>
Subject: Re: [PATCH for stable] tracing: Consolidate protection of reader
 access to the ring buffer

On Tue, 2010-06-22 at 06:28 -0700, Greg KH wrote:
> On Tue, Jun 22, 2010 at 09:23:03AM -0400, Steven Rostedt wrote:
> > Greg,
> > 
> > Johannes has been hitting a bug in 2.6.33 that we believe is fixed with
> > the following patch. The bug is hit a few times a week, so it is hard to
> > verify. But we are only hitting it with .33 and not .34, and this patch
> > looks like it would be the one to fix it.
> > 
> > Can you apply this patch to the 2.6.33 stable series.
> 
> If you are ok with it, I'll apply it as it does look a little "big" for
> a stable kernel :)

Yeah, I usually would not ask for a patch this size to go into stable,
but it has been in mainline for a while, and seems to be the fix for a
bug we are hitting in .33.

> 
> I'll queue it up later today.

Great! Thanks,

-- Steve


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