linux-kernel - Re: One-shot high-resolution POSIX timer periodically late

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Date:	Mon, 05 Feb 2007 17:37:01 +0100
From:	John <shill@...e.fr>
To:	linux-kernel@...r.kernel.org
CC:	tglx@...esys.com, mingo@...e.hu, johnstul@...ibm.com,
	akpm@...l.org, shill@...e.fr
Subject: Re: One-shot high-resolution POSIX timer periodically late

Ingo Molnar wrote:

> John wrote:
> 
>> John Stultz wrote:
>> 
>>> Also do check the -rt tree as Ingo suggested. I mis-read your earlier
>>> email and thought you were running it.
>> 
>> I've been pulling my hair over a related issue for the past two days.
>> 
>> (I think I may be tickling a -hrt bug...)
>> 
>> I'm working with 2.6.18.6 + patch-2.6.18-rt7
> 
> 2.6.18-rt7 is pretty old, do you see the problem in 2.6.20-rc6-rt5 too?

Ingo, Thomas,

As far as I can tell, the -rt patch set is only updated for the latest 
kernel version available. Is that correct?

http://people.redhat.com/mingo/realtime-preempt/older/?M=D

In other words, once 2.6.20 is released, and work starts on 2.6.21, if a 
bug is discovered in -rt, the fix will not be back-ported to the 
2.6.20.x (and 2.6.19.x, and 2.6.18.x, etc) patch set?

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