On Sat, 04 Jan 2014 01:45:38 +0100, Leza Morais Lutonda
Hi,
I has trying to use the portaudio [1] package to play some sound, and running the examples [2] results in "Segmentation fault/access violation" error.
How can I solve this problem?
As far as I can tell, there is no good solution for this. You can try to get a stack trace[0][1], or, at Haskell level, find the location error with the GHCi debugger[2] Check if you have the correct versions of dynamic libraries, if applicable. Note, that a missing dynamic library is not always reported properly; sometimes, GHCi mentions a missing dynamic library, while this is not reported when running a compiled program. For Windows, there are cygcheck and Dependency Walker to get an overview of the DLL dependencies. Another problem, that might arise, is a changed calling convention; the Haskell binding to PortAudio uses ccall, the PortAudio C software might have recently adopted a different calling convention. Regards, Henk-Jan van Tuyl [0] http://spin.atomicobject.com/2013/01/13/exceptions-stack-traces-c/ [1] https://gist.github.com/jvranish/4441299/raw/a15d0d5a6c716f4f375ed5ea492b453... [2] http://www.haskell.org/ghc/docs/latest/html/users_guide/ghci-debugger.html -- Folding@home What if you could share your unused computer power to help find a cure? In just 5 minutes you can join the world's biggest networked computer and get us closer sooner. Watch the video. http://folding.stanford.edu/ http://Van.Tuyl.eu/ http://members.chello.nl/hjgtuyl/tourdemonad.html Haskell programming --