#11190: Hello "schedule: re-entered unsafely." --------------------------------+---------------------------------- Reporter: Chobbes | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.10.2 Keywords: | Operating System: Linux Architecture: arm | Type of failure: Runtime crash Test Case: | Blocked By: Blocking: | Related Tickets: 951 Differential Rev(s): | Wiki Page: --------------------------------+---------------------------------- After compiling the following program on ARM: {{{#!hs main = putStrLn "Hello, world!" }}} using `ghc hello.hs` I receive the following error when running the compiled code: {{{ $ ./hello hello: schedule: re-entered unsafely. Perhaps a 'foreign import unsafe' should be 'safe'? }}} I'm trying to get GHC running on my Raspberry Pi 2, running Raspbian Jessie Light, which can be found here: https://www.raspberrypi.org/downloads/raspbian/ I was following the instructions for installing the compiler on a freshly flashed RPI2 from here: http://statusfailed.com/blog/2015/11/29/haskell-and-servant-on-scaleway- arm-servers.html This was using the Linux ARMv7 binaries: https://www.haskell.org/ghc/download_ghc_7_10_3#linux_armv7 https://www.haskell.org/ghc/download_ghc_7_10_2#linux_armv7 Additionally trying to upgrade cabal with `cabal install cabal-install` seems to hang forever. It gets stuck in various Setup.hs files and doesn't seem to progress. No CPU is taken up using this. Some summary information: - llvm 3.5 - gcc 4.9.2 - original GHC from Raspbian is 7.6.3 - cabal-install from Raspbian is 1.20.0.3 - cabal is 1.20.0.2 - This same problem affects both 7.10.2, and 7.10.3 -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11190 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler