hi, i've found the reason with someone's help. it is because i used "%code" instead of "safecode" in the gc file where i did callback. thanks!
---- chenyu ---------- Original Message ---------------------------------- From: "Simon Marlow" <[EMAIL PROTECTED]> Date: Mon, 26 Nov 2001 09:42:39 -0000 > >> i use green-card with ghc's FFI export to sth like >> >> Haskell -----> C ------> Haskell >> >> the program is just arithmatic operations. the program "seg fault" >> in the callback from C to Haskell. anyone whether it is a bug? > >There aren't any known bugs, but there are many known pitfalls. You'll >need to give us more information, at least: the code that causes the >crash (preferably a small example), the exact GHC command lines used to >compile it, your GHC version, your machine and OS version. > >Cheers, > Simon > _______________________________________________ Glasgow-haskell-users mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/glasgow-haskell-users