I have made available a build of GHC 8.2.2 with the config option: --disable-large-address-space You may find this useful if you are using Ubuntu 16.04 on Windows Subsystem for Linux. https://github.com/zoominsoftware/ghc-8.2.2-wsl Although Microsoft has been making gradual progress on the large address mapping issue[1][2], and the situation is much improved, there is still an extra startup latency of about 13 secs. for applications that pre-map a large address space as GHC does by default. This makes the standard GHC binary unusable for compiling projects of any non-trivial size. WSL is now out of beta. It can be enabled on any computer running Windows 10. Almost all 64-bit linux binaries run fine out of the box on WSL. GHC is unfortunately an exception, due to its large address space mapping behavior. WSL is extremely useful as a development platform, except for this annoyance for Haskell developers. Could we consider providing binary installers with --disable-large-address-space as an official part of our releases? It seems that it would take very little extra work to do so: just run the build for latest Debian twice, once as usual and once with --disable-large-address-space. Is there anything I could do to help? Thanks, Yitz [1] https://ghc.haskell.org/trac/ghc/ticket/13304 [2] https://github.com/Microsoft/WSL/issues/1671