linux-kernel - Re: [Patch] restore the RCU callback to defer put_task

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Date:	Tue, 8 Aug 2006 15:06:52 -0400 (EDT)
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Robert Crocombe <rcrocomb@...il.com>
cc:	hui Bill Huey <billh@...ppy.monkey.org>,
	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>,
	Darren Hart <dvhltc@...ibm.com>
Subject: Re: [Patch] restore the RCU callback to defer put_task_struct() Re:
 Problems with 2.6.17-rt8


On Tue, 8 Aug 2006, Robert Crocombe wrote:

> On 8/7/06, hui Bill Huey <billh@...ppy.monkey.org> wrote:
> > > I tested it with a "make -j4" which triggers the warning and it they all
> > > go away now.
> > >
> > > Reverse patch attached:
>
> Unfortunately, this makes no difference on my setup.  Patch applied,
> made the obvious little change:
>
> -#include <linux/dobject.h>
> +#include <linux/kobject.h>
>
> But:
>
>
> kjournald/1119[CPU#1]: BUG in debug_rt_mutex_unlock at
> kernel/rtmutex-debug.c:471
>

Robert,

How far back do you get this bug?  I mean if you go back and test the
previous kernels, where did you start seeing this?

Thanks,

-- Steve
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