jutaro wrote:
I've installed a GUI application based on gtk2hs.
It frequently crashes with the error:
leksah: error: a C finalizer called back into Haskell.
use Foreign.Concurrent.newForeignPtr for Haskell finalizers.
This error did never occur with the 6.10 released version. It was verified
that this happens on different machines. I've no idea how to isolate this
bug.
This will need to be fixed in gtk2hs. Previously GHC allowed finalizers to
call back into Haskell, but this was never officially supported. Now it is
officially unsupported, because finalizers created via Foreign.mkForeignPtr
are run directly by the garbage collector.
See
http://hackage.haskell.org/trac/ghc/ticket/1364
Cheers,
Simon
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