Hi Michael,

Does this happen only with 8.2.1?

Can you try a clean vanilla GHC?
https://downloads.haskell.org/~ghc/8.2.1/ghc-8.2.1-x86_64-unknown-mingw32.tar.xz

just to rule out any issues with toolings.

if it still happens, does ghci -v3 show anything?

if it still crashes can you run procdump on GHC directly and return the dump?

https://docs.microsoft.com/en-us/sysinternals/downloads/procdump

with "procdump -e 1 -x <pathtobinfolder>\ghc --interactive"

Thanks,
Tamar


 ---- On Fri, 20 Oct 2017 14:02:31 +0000 Michael McCulloch <michael.james.mcculloch@gmail.com> wrote ----
 > Hello.
 > After searching around I can't find people with a similar issue (Maybe I'm looking in the wrong places?).
 > I installed Haskell platform 8.2.1, using Stack 1.5.1, Cabal 2.0.0.0. Windows 10 Fall Creators Update( This issue was also occurring pre FCU). The issue also occurs with 8.0.2a
 > Prior to FCU, I could run ghci directly, but now i get:
 >     Access violation in generated code when reading 00000000046710f6
 > Can anyone help me out?--
 > Michael McCulloch
 >  c: (403) 629-9645
 >  e: michael.james.mcculloch@gmail.com
 >   _______________________________________________
 > Glasgow-haskell-users mailing list
 > Glasgow-haskell-users@haskell.org
 > http://mail.haskell.org/cgi-bin/mailman/listinfo/glasgow-haskell-users
 >