#8281: The impossible happened: primRepToFFIType -------------------------------------+------------------------------------- Reporter: tibbe | Owner: (none) Type: bug | Status: new Priority: high | Milestone: 8.4.1 Component: Compiler | Version: 7.6.2 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Compile-time | Unknown/Multiple crash | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by simonmar): I suggested to @bgamari today that it might be possible to support `unsafe` foreign calls in GHCi with the same behaviour as compiled code (i.e. no GC during the call guaranteed) by avoiding the `suspendThread()` / `resumeThread()` calls that the interpreter makes in the bci_CCALL byte code implementation. We'd need to include a flag with the byte code to indicate that the call is unsafe, but there's already a flag being passed for interruptible so there's room for another flag in the same word. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8281#comment:27 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler