linux-kernel - Re: 2.6.24.7-rt16

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Message-ID: <488D7F5D.8090400@grandegger.com>
Date:	Mon, 28 Jul 2008 10:12:13 +0200
From:	Wolfgang Grandegger <wg@...ndegger.com>
To:	Thomas Gleixner <tglx@...utronix.de>
CC:	LKML <linux-kernel@...r.kernel.org>,
	rt-users <linux-rt-users@...r.kernel.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	Ingo Molnar <mingo@...e.hu>,
	Clark Williams <williams@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Carsten Emde <ce@...g.ch>, Luotao Fu <l.fu@...gutronix.de>
Subject: Re: 2.6.24.7-rt16

Hi Thomas,

Thomas Gleixner wrote:
> We are pleased to announce the 2.6.24.7-rt16 tree, which can be
> downloaded from the location:
>  
>   http://rt.et.redhat.com/download/
> 
> Information on the RT patch can be found at:
> 
>   http://rt.wiki.kernel.org/index.php/Main_Page
> 
> This is a bugfix update:
> 
>      - remove m68knommu merge artifacts (tglx)
> 
>      - fix x86_64 UP build (Peter Zijlstra)
> 
>      - powerpc ftrace backport (tglx)

Backport? It's not yet available for 2.6.25.

>      - fix long standing NFS missing preemption check (tglx)
> 
>        This is not a MPC5200 specific problem, it affects all
>        architectures, but was not noticed for a long time as the race
>        window is extremly tight.

This fix finally solves my latency issues with the MPC5200, also with 
2.6.25.8-rt7. After 2 hours the latency is still below 150us for both 
versions. Thanks a lot for your effort.

Wolfgang.


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