Hello "schedule: re-entered unsafely."
After compiling the following program on ARM:
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
Trac metadata
| Trac field | Value |
|---|---|
| Version | 7.10.2 |
| Type | Bug |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | Compiler |
| Test case | |
| Differential revisions | |
| BlockedBy | |
| Related | #951 (closed) |
| Blocking | |
| CC | |
| Operating system | |
| Architecture |