Comment # 34 on bug 1166406 from Dominique Leuenberger

(In reply to Michal Suchanek from comment #9)
> There is one last problem:
> 
> If vmlinux is needed for debugging only how do we ensure it's installed with
> the debuginfo package if we package it separately?
> 
> debuginfo packages are created automagically so it's difficult to inject
> additional dependencies or files.

(as noted by Ludwig already):
Requires: (kernel-default-vmlinux if kernel-default-debuginfo)

That would make the (new) -vmlinux mandatory as soon as -debuginfo is being
triggered for install next to -default.

(In reply to Tony Jones from comment #30)
> (In reply to Ludwig Nussel from comment #28)
> 
> > I guess what you want is to install that package if both kernel-default as
> > well as kernel-default-debuginfo are installed. 
> 
> Maybe I'm misunderstanding.
> 
> How is that different from just adding vmlinux to the debuginfo package?
> 
> Also, as already shown, systemtap can make use of the symbol information in
> vmlinux without debuginfo.

It is different insofar that you can install -vmlinux without the -debuginfo
(but not the -debuginfo without the -vmlinux)