Updated the test system to Kernel 4.1-rc6, and – as previously – the ‘vmnet-patched‘ version of VMware 11.1, and the latest NVIDIA drivers (346.72, and 352.09) compile and install/run OK..

$ uname -a
Linux rg6830l 4.1.0-rc6 #1 SMP Mon Jun 1 09:01:13 PDT 2015 x86_64 x86_64 x86_64 GNU/Linux

Details of changes from -rc5 are here:  http://lkml.iu.edu/hypermail/linux/kernel/1505.3/05020.html

Robert Gadsdon.  June 01, 2015.