Re: 2.6.14-rt1

["K.R. Foley" <kr@cybsft.com>]

Ingo Molnar wrote:
> i have released the 2.6.14-rt1 tree, which can be downloaded from the 
> usual place:
> 
>    http://redhat.com/~mingo/realtime-preempt/
> 
> this release is mainly about ktimer fixes: it updates to the latest 
> ktimer tree from Thomas Gleixner (which includes John Stultz's latest 
> GTOD tree), it fixes TSC synchronization problems on HT systems, and 
> updates the ktimers debugging code.
> 
> These together could fix most of the timer warnings and annoyances 
> reported for 2.6.14-rc5-rt kernels. In particular the new 
> TSC-synchronization code could fix SMP systems: the upstream TSC 
> synchronization method is fine for 1 usec resolution, but it was not 
> good enough for 1 nsec resolution and likely caused the SMP bugs 
> reported by Fernando Lopez-Lezcano and Rui Nuno Capela.
> 
> Please re-report any bugs that remain.
> 
> Changes since 2.6.14-rc5-rt1:
> 
>  - GTOD -B9 (John Stultz)
> 
>  - ktimer updates (Thomas Gleixner, me)
> 
>  - ktimer debugging check fixes (Steven Rostedt)
> 
>  - smarter TSC synchronization on SMP - we now rely on it for nsecs (me)
> 
>  - x64 build fix (reported by Mark Knecht)
> 
>  - tracing fix (reported by Florian Schmidt)
> 
>  - rtc histogram fixes (K.R. Foley)

Actually it doesn't look like these made it into the patch. :)

> 
>  - merge to 2.6.14
> 
> to build a 2.6.14-rt1 tree, the following patches should be applied:
> 
>   http://kernel.org/pub/linux/kernel/v2.6/linux-2.6.14.tar.bz2
>   http://redhat.com/~mingo/realtime-preempt/patch-2.6.14-rt1
> 
> 	Ingo
> 


-- 
   kr
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