My kernel:
kernel=/conary.rpath.com@rpl:devel//kernelbits.rpath.org@rpl:1/2.6.17.8-1-0.2[~!dom0,~!domU,~!kernel.debug,~!kernel.debugdata,~!kernel.numa,~!kernel.smp,~!xen is: x86(cmov,i486,i586,i686,~!mmx)]

The rest of them that don't work. . . :
kernel=/conary.rpath.com@rpl:devel//kernelbits.rpath.org@rpl:1/2.6.18.1-0.2-1[~!dom0,~!domU,~!kernel.debug,~!kernel.debugdata,~!kernel.numa,~kernel.smp,~!xen is: x86(i486,i586,i686,~!mmx)]
kernel=/conary.rpath.com@rpl:devel//dellm90.rpath.org@rpl:devel//foresight.rpath.org@fl:1-devel-kernel/2.6.18.1-0.3-1[~!kernel.debugdata,~kernel.smp]
kernel=/conary.rpath.com@rpl:devel//1-xen/2.6.16.29-0.10-1[dom0,~!domU,~!kernel.debug,~!kernel.debugdata,~!kernel.numa,~!kernel.pae,~kernel.smp,xen is: x86(i486,i586,i686,~!mmx)]
kernel:build-tree=2.6.18.3-0.1-1[~!kernel.debug,~!kernel.debugdata,~!kernel.numa,~kernel.smp is: x86(~!mmx)]
kernel:runtime=2.6.17.14-0.3-1[~!kernel.debug,~!kernel.debugdata,~!kernel.numa,~!kernel.smp is: x86(~!mmx)]
linux-kernel-headers=2.4-9-0.1