Re: 2.6.14-rt1

From: Mark Knecht
Date: Sun Oct 30 2005 - 11:32:33 EST


On 10/30/05, Ingo Molnar <mingo@xxxxxxx> 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)

I am no longer seeing any ktimer messages in dmesg after booting. So
far so good.

>
> - 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)

Thanks Ingo. This seems fixed. 2.6.14-rt1 up and running here.

>
> - tracing fix (reported by Florian Schmidt)
>
> - rtc histogram fixes (K.R. Foley)
>
> - 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
>

Cheers,
Mark
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