id,summary,reporter,owner,description,type,status,priority,milestone,component,version,resolution,keywords,cc,os,architecture,failure,difficulty,testcase,blockedby,blocking,related
5887,ghci win7 ctrl+c panic,MCMayor,,"Running GHCI in Windows 7, type:
""ghci"" then Enter
""yo"" then Ctrl+c
dude then Enter

Printout:

C:\Users\Andy>ghci
GHCi, version 7.0.4: http://www.haskell.org/ghc/  :? for help
Loading package ghc-prim ... linking ... done.
Loading package integer-gmp ... linking ... done.
Loading package base ... linking ... done.
Loading package ffi-1.0 ... linking ... done.
Prelude> yo
Prelude> dde

<interactive>:1:1: Not in scope: `dde'
Prelude>
ghc.exe: panic! (the 'impossible' happened)
  (GHC version 7.0.4 for i386-unknown-mingw32):
        thread blocked indefinitely in an MVar operation

Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug

The bug has different results every time. I think it happens more often when typing very quickly.
",bug,closed,normal,,GHCi,7.0.4,duplicate,ghci command line,,Windows,x86_64 (amd64),GHCi crash,Unknown,,,,