Fedora xen - Aug 2007 - how to get kernel-xen-debuginfo-2.6.19-1.2911.6.5.fc6xen???

Hello,

I want to use oprofile to profile the xen. But only if the debuginfo is
available,then I can get source file annotations. As the following kernel is the
most stable version, so I dont want to update in the near future.
# uname -r
2.6.19-1.2911.6.5.fc6xen

The problem is previously I used 
yum --enablerepo=core-debuginfo --enable=updates-debuginfo install\
kernel-debuginfo

and then

# rpm -q --list kernel-xen-debuginfo | grep vmlinux
/usr/lib/debug/lib/modules/2.6.20-1.2948.fc6xen/vmlinux

I will get the 2.6.20-1.2948.fc6xen vmlinux, which doesn''t match my
kernel-xen 2.6.19-1.2911.6.5.fc6xen.

How can I get the "kernel-xen-debuginfo-2.6.19-1.2911.6.5.fc6xen" just
like the one lives here  /usr/lib/debug/lib/modules/2.6.20-1.2948.fc6xen/vmlinux

Thanks a lot.
Songtao