Re: [patch] Real-Time Preemption, -RT-2.6.12-rc6-V0.7.48-00

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K.R. Foley wrote:
Ingo Molnar wrote:

i have released the -V0.7.48-00 Real-Time Preemption patch, which can be downloaded from the usual place:

    http://redhat.com/~mingo/realtime-preempt/

this release includes an improved version of Daniel Walker's soft irq-flag (hardirq-disable removal) feature. It is an unconditional part
of the PREEMPT_RT preemption model - other preemption models should not
be affected that much (besides possible build issues). Non-x86 arches
wont build. Some regressions might happen, so take care..

Changes since -47-29:

 - soft IRQ flag support (Daniel Walker)

 - fix race in usbnet.c (Eugeny S. Mints)

 - further improvements to the soft IRQ flag code

to build a -V0.7.48-00 tree, the following patches should to be applied:

   http://kernel.org/pub/linux/kernel/v2.6/linux-2.6.11.tar.bz2
   http://kernel.org/pub/linux/kernel/v2.6/testing/patch-2.6.12-rc6.bz2
http://redhat.com/~mingo/realtime-preempt/realtime-preempt-2.6.12-rc6-V0.7.48-00

    Ingo


Ingo,

I can't get any version of RT-preempt applied to 2.6.12-rc6 up to and including 48-01 to boot on any of my SMP systems. I get no log because it dies right after the "Uncompressing kernel" message. 2.6.12-rc6 boots fine. I am attaching my config. Am I missing something obvious? I am building 48-01 with voluntary-preempt now to try that.



Well crap. Perhaps I should have tried this first. If I disable the runtime selectable locking

# CONFIG_DEBUG_RT_LOCKING_MODE is not set

it seems to work fine. With the above enabled it hangs on both of my SMP systems as described above. :-/

--
   kr
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