David Haggett <david(a)haggett.demon.co.uk>uk>:
  On Monday 23 May 2005 09:57, Rui Nuno Capela wrote:
  I have SuSE 9.3 here on my P4/HT desktop box,
which is running
 2.6.11.4-20a tagged kernel. The way to go is installing
 kernel-source package and apply the realtime-lsm patch to the
 kernel source tree. The patch is here:
 
http://www.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.
12-rc4/2 .6.12-rc4-mm2/broken-out/rt-lsm.patch 
 Thanks for your answer (and sorry took so long to respond).
 Can you just clarify that I should install the SuSE kernel source
 package matching my default kernel, (2.6.11.4-20a-default) and patch
 it using the rt-lsm patch from 2.6.12-rc4-mm2, or did you mean to
 install the vanilla 2.6.12 source and apply the patch to that. 
David, I tried what Rui suggested. The above patch applies and fits in
despite the mismatch of kernel version. I didn't go through to actually
booting the kernel but I see no reason why it shouldn't boot. "make
oldconfig" is probably a real winner here because of suse's
patch-o-mania.
Wolfgang