Tested Kernel 3.18-rc3 and found that it would not boot with the .config that worked OK with -rc1.. Re-created a new .config from scratch, and now my temporary test system (HP6830 laptop) boots OK, but overall performance still seems rather sluggish..
# uname -a Linux rg6830l 3.18.0-rc3 #1 SMP PREEMPT Mon Nov 3 18:19:06 PST 2014 x86_64 x86_64 x86_64 GNU/Linux
Tested with VMware 10.0.3 (with the vmnet patch) and NVIDIA 340.46 (with the nv-drm.c patch) and both compile and load OK.
Robert Gadsdon. November 3, 2014