
On 25 February 2011 19:10, Bas van Dijk
On 25 February 2011 18:27, sclv
wrote: Bas van Dijk-2 wrote:
I believe the OS threads are created by my levmar library. This library uses bindings-levmar[4] which is a binding to a C library. bindings-levmar uses safe FFI calls because the levmar C procedures are reentrant (they need to call back into Haskell to execute the model function). I believe the RTS creates an OS thread for each safe FFI call.
Sounds like #4262: http://hackage.haskell.org/trac/ghc/ticket/4262
(Should be fixed in head)
That looks exactly like my problem. I will try it out with ghc head on monday.
In ghc-HEAD (7.1.20110227) the bug is fixed, great! The bug still appears in ghc-7.0.2-rc2, so I assume the patch in #4262 was not merged in that release. Will it be merged into the upcoming ghc-7.0.2? Regards, Bas