Ingo Molnar wrote:

we are pleased to announce the v2.6.22.1-rt5 kernel (collected and 
assembled by Thomas), which can be downloaded from the usual place:
  
  http://redhat.com/~mingo/realtime-preempt/
  
more info about the -rt patchset can be found in the RT wiki:
   
  http://rt.wiki.kernel.org

Changes since -rt4:

 - MM fix: PCP pages locking (Peter Zijlstra)

 - yield() fix: remove stale RCU-unlock (Daniel Walker)

 - dont do check_pgt_cache() in idle (found by Daniel Walker)

 - moved 8 patches, created 6 new patches out of larger patches to 
   make the -rt queue more bisectable (Daniel Walker)

 - cleanup (Daniel Walker)

 - fix the latency tracer under paravirt

to build a 2.6.22.1-rt5 tree, the following patches should be applied:
  
  http://kernel.org/pub/linux/kernel/v2.6/linux-2.6.22.1.tar.bz2
  http://redhat.com/~mingo/realtime-preempt/patch-2.6.22.1-rt5
  
	Ingo
-

Maybe I was too quick, but `make all` on is failing here:

...
In file included from arch/i386/mm/pgtable.c:16:
include/linux/quicklist.h: In function ‘quicklist_alloc’:
include/linux/quicklist.h:50: warning: unused variable ‘q’
include/linux/quicklist.h: In function ‘__quicklist_free’:
include/linux/quicklist.h:79: error: ‘per_cpu__quicklist’ undeclared
(first use in this function)
include/linux/quicklist.h:79: error: (Each undeclared identifier is
reported only once
include/linux/quicklist.h:79: error: for each function it appears in.)
include/linux/quicklist.h:79: warning: type defaults to ‘int’ in
declaration of ‘type name’
include/linux/quicklist.h:79: error: invalid type argument of ‘unary *’
make[1]: *** [arch/i386/mm/pgtable.o] Error 1
make: *** [arch/i386/mm] Error 2
...

.config is from previous -rt4:
http://www.rncbc.org/datahub/config-2.6.22.1-rt4.0

Bye now.
-- 
rncbc aka Rui Nuno Capela
rncbc@rncbc.org