From mboxrd@z Thu Jan  1 00:00:00 1970
From: Philippe Gerum <rpm@xenomai.org>
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Date: Thu, 04 Feb 2010 11:46:10 +0100
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Subject: Re: [Xenomai-help] help with xenomai-2.5.0 on pure64bit linux x86_64
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To: Jan Kiszka <jan.kiszka@domain.hid>
Cc: xenomai@xenomai.org

On Sun, 2010-01-31 at 14:42 +0100, Jan Kiszka wrote:
> Philippe Gerum wrote:
> > On Sun, 2010-01-31 at 14:25 +0100, Jan Kiszka wrote:
> >> Philippe Gerum wrote:
> >>> On Sun, 2010-01-31 at 13:37 +0100, Jan Kiszka wrote:
> >>>> lux-integ wrote:
> >>>>> Greetings
> >>>>>
> >>>>>  I am new to xenomai and I am attempting to   install    a RT-kernel on a pure 
> >>>>> 64-bit  (not multilib) amd64 linux setup.  The machine has a Sempron CPU and 
> >>>>> 2 GBytes of RAM.  The distribution is cross-lfs  compiled from sources.  This 
> >>>>> is what I have done:-
> >>>>>
> >>>>> a) I   fetched fresh kernel2.6.32.2  source-code   and placed it 
> >>>>> in /usr/src/linux like so:-
> >>>>> `linux' -> `linux-2.6.32.2'
> >>>>>
> >>>>> b) ..I then  applied  the  xenomai patch as such:-
> >>>>> $SOURCES/xenomai-2.5.0/scripts/prepare-kernel.sh --linux=/usr/src/linux  --adeos=$SOURCES/xenomai-2.5.0/ksrc/arch/x86/patches/adeos-ipipe-2.6.32.2-x86-2.5-00.patch  --arch=x86_64
> >>>>

<snip>

> >>> This is likely our old friend CONFIG_SPARSE_IRQ which is at work. Just
> >>> disable this, until we have introduced the required changes to support
> >>> more than 1024 IRQs.
> >> If that is true, then please include a simple "depends on !CONFIG_IPIPE"
> >> in the x86 patch for the meantime.
> >>
> > 
> > No. Work to lift this limitation is in progress here.
> 
> That's even nicer (if 'lift' means removing any limitation of
> CONFIG_NR_CPUS).
> 
> Jan
> 

Could someone gives this patch a go, with CONFIG_SPARSE_IRQ on (or some
unreasonable number of CPUs in 64bit mode, whichever comes first)?

http://download.gna.org/adeos/patches/v2.6/x86/adeos-ipipe-2.6.32.7-x86-2.6-00.patch

TIA,


-- 
Philippe.