#15038: Memory Corruption (strange closure type) -------------------------------------+------------------------------------- Reporter: andrewthad | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: 8.6.1 Component: Compiler | Version: 8.4.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: Runtime crash | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by andrewthad): The full original code is the `packed` repository (along with its test suite): https://github.com/andrewthad/packed. The minimal example repo I put up is just `packed` but with everything that wasn't needed to make the error happen stripped out. Here is an example of a parser that I build in the original code that doesn't cause errors: https://github.com/andrewthad/packed/blob/master/test/Parser.hs#L112-L122. None of the parsers from the original test suite ever cause crashes excepted for the trie-based one where a `Parser` is nested inside of a `Trie`, which causes a crash whenever the GC is run. Let me know if there's a way that I can clarify this further. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15038#comment:13 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler