#16066: internal error: PAP object entered! ----------------------------------+---------------------------------------- Reporter: dnspies | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.4.4 Resolution: | Keywords: Operating System: iOS | Architecture: Unknown/Multiple Type of failure: Runtime crash | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | ----------------------------------+---------------------------------------- Comment (by dnspies): I pushed the failing return call much closer to the top to make it clear that it's not a lazy evaluation thing: Now it's happening here: https://github.com/dspies- leapyear/persistwrap/blob/c6923216c126e9125e4ce80a33bd4e416b3922c7/persistwrap/src/PersistWrap/Persisted.hs#L44 When I run it I get: {{{ Progress 9/10: persistwrap-0.1.0.0test/Driver.hs widget Widget should get back what you put in: Before: <foreign key: abc> STM returning <foreign key: abc> persistwrap-test: internal error: PAP object entered! (GHC version 8.4.4 for x86_64_apple_darwin) Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/16066#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler