Got an internal error that caused GHCi to crash

[guest]

Here's the error message:

<interactive>: internal error: evacuate: strange closure type 18317

(GHC version 7.4.1 for i386_unknown_mingw32) Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug

This application has requested the Runtime to terminate it in an unusual way. Please contact the application's support team for more information.

This happened while :load-ing a file. GHCi had been running for quite a while.

[guest]

Forgot to add that this is not a recurring problem.

[guest]

Can you try with GHC 7.6? Windows 64 bit had rather weak support in GHC 7.4.

[igloo]

If this isn't repeatable then there's not much we can do, I'm afraid.

If you find a way to reproduce it, please reopen or file a new ticket.