#9834: GHC panic when used with deferred type errors -------------------------------------+------------------------------------- Reporter: | Owner: Iceland_jack | Status: new Type: bug | Milestone: Priority: normal | Version: 7.8.2 Component: Compiler | Keywords: (Type checker) | Architecture: Unknown/Multiple Resolution: | Difficulty: Unknown Operating System: Linux | Blocked By: Type of failure: GHCi crash | Related Tickets: Test Case: | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Comment (by jstolarek): I just checked and I'm getting a panic on my branch forked from HEAD 5 days ago. So if the fix indeed went into HEAD it must be really recent. I tried cherry-picking 2cc854b7133e38c7ad1107057931761782d03594 onto my branch because it does typed-holes-related stuff but that doesn't fix the panic. I also confirmed that this happens with GHC 7.8.4: Aside: To get the reported test case compiling with HEAD I had to change `import Control.Monad.Identity` to `import Data.Functor.Identity`. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9834#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler