I am currently on Dust of Dreams (book 9 of Malazan) and I have to ask why exactly does Kilmandaros hate the Eleint so much? I know bits of her back story as an Elder Goddess and the only time it coincides with Eleint is when she decides to start "driving the pretenders out of Shadow" (when her and Rake are together in Shadow). Is there a reason for her anger?
Kilmandaros is an Azanthi, but more importantly she is the 'goddess' of the Forkul Assail. The Eleint are a power to match the Azanthi (I think there was an Azanthi-Eleint war) and another power her followers could believe in.
You must understand that in the Malazan-verse gods are simply ascendants with believers, therefore Kilmandaros' power (and every other gods') is tied to how many or how strongly mortals believe in her. If there is a contesting "god" (an Elient goddess competing) then a pretender is 'cramping her turf'. Additionally, the Krul-Eleint warrens allow others (namely ascendant mortals) to continue the encroachment on her territory.
I think we'll learn more about why she is so angry in the next few Kharkanas books. She seems to have a personal connection to Shadow (why would she agree to drive out the pretenders with Rake?). I know it's not much of an answer, but it's something that hasn't quite been revealed yet.