My machine currently has 32GB of unusable memory. I want to allocate 16GB to the JVM and as such will require 16GB of Large Pages. I configured the amount of hugepages available in linux like so: Code (Text): sysctl -w vm.nr_hugepages=8192 Now the problem is, that when I try and launch my server using the -XX:+UseLargePages parameter I get an error about not being able to reserve enough memory. I read somewhere that I need to correctly configure my shmmax value which is currently 68719476736. Does anyone know what I need to change to get it to launch correctly with large pages?