Just updated the test system to Kernel 4.1-rc4, and this is OK with the latest NVIDIA drivers (346.72 and 352.09) and with vmnet-patched VMware 11.1..
# uname -a Linux rg6830l 4.1.0-rc4 #1 SMP Mon May 18 16:00:31 PDT 2015 x86_64 x86_64 x86_64 GNU/Linux
Details of changes from -rc3 are here: http://lkml.iu.edu/hypermail/linux/kernel/1505.2/01224.html
Robert Gadsdon. May 18, 2015.