Re: [patch] Real-Time Preemption, -RT-2.6.10-rc1-mm3-V0.7.21

[Gunther Persoons]

Ingo Molnar wrote:

> i have released the -V0.7.21 Real-Time Preemption patch, which can be
> downloaded from the usual place:
>
>   http://redhat.com/~mingo/realtime-preempt/
>
> this release includes fixes and debugging-improvements.
>
> Changes since -V0.7.20:
>
> - reverted the modlist_lock change - it caused more problems than it 
>   solved.
>
> - implemented irqs-off critical section timing/tracing, inspired by the 
>   positive results Thomas Gleixner got with a different kind of cli/sti
>   tracer. To activate it, enable CONFIG_CRITICAL_TIMING and 
>   CONFIG_CRITICAL_IRQSOFF_TIMING and cli/sti latencies will be reported
>   'integrated' into the preempt on/off latencies.
>
> - sped up tracing in a number of ways. Performance of the tracer slowly
>   eroded in the past week or two, it needed alignment and size fixes ,
>   inlining/branch-prediction updates and i got rid of unnecessary code.
>   The max latency is now traced in cycles - this got rid of an
>   expensive 64-bit division in the fastpath. (the /proc/sys tunables
>   are still in usecs so userspace should not notice anything.) It's
>   still not cheap but roughly 5 times faster than -V0.7.20's tracer, on
>   a fast desktop box.
>
> - renamed CONFIG_PREEMPT_REALTIME to CONFIG_PREEMPT_RT - it's shorter.
>
> - renamed CONFIG_PREEMPT_TIMING to CONFIG_CRITICAL_TIMING and 
>   introduced CONFIG_CRITICAL_IRQSOFF_TIMING to enable cli/sti timing.
>
> to create a -V0.7.21 tree from scratch, the patching order is:
>
>   http://kernel.org/pub/linux/kernel/v2.6/linux-2.6.9.tar.bz2
>   http://kernel.org/pub/linux/kernel/v2.6/testing/patch-2.6.10-rc1.bz2
>   http://kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.10-rc1/2.6.10-rc1-mm3/2.6.10-rc1-mm3.bz2
>   http://redhat.com/~mingo/realtime-preempt/realtime-preempt-2.6.10-rc1-mm3-V0.7.21
>
> 	Ingo
>
>  
When trying to patch my kernel i get following notice:
patching file include/linux/highmem.h
patch unexpectedly ends in middle of line
patch: **** unexpected end of file in patch
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