#8969: GHCi crash on invalid input ------------------------------------+------------------------------------- Reporter: aslpavel | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.6.3 Keywords: | Operating System: Unknown/Multiple Architecture: Unknown/Multiple | Type of failure: GHCi crash Difficulty: Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | ------------------------------------+------------------------------------- I know its incorrect haskell code but after entering following sequence of commands, ghci seems to be crashing. {{{ GHCi, version 7.6.3: http://www.haskell.org/ghc/ :? for help Loading package ghc-prim ... linking ... done. Loading package integer-gmp ... linking ... done. Loading package base ... linking ... done. λ > data R = R { x1 :: Int, x2 :: Int, x3 :: Int } deriving Show λ > data R a = State { x1 :: Int, x2 :: Int, x3 :: Int } a ghc: panic! (the 'impossible' happened) (GHC version 7.6.3 for x86_64-unknown-linux): tc_hs_type: record Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug }}} I hope it would be helpful. Thanks! -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8969 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler