Donn, Thanks, this solved the problem.
I would like to know more about what the signals are doing, and what am I giving up by disabling them? My hope is I can then go back to the dll expert and ask why this is causing their library a problem and try to see if they can solve the problem from their end, etc. Mike On Aug 12, 2014, at 11:04 PM, Donn Cave <d...@avvanta.com> wrote: > ... >> Because the failures are not general in that they target one >> particular value, and seem to be affected by time, it makes me >> wonder if there is some subtle Haskell run time issue. Like, >> could the garbage collector be interacting with things? >> >> Does anyone have an idea what kind of things to look for? > > Sure - not that I have worked out in any detail how this would > do what you're seeing, but it's easy to do and often enough > works. > > Compile with RTS options enabled and invoke with RTS option -V0. > > That will disable the runtime internal timer, which uses signals. > The flood of signals from this source can interrupt functions > that aren't really designed to deal with that, because in a more > normal context they don't have to. > > Donn _______________________________________________ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users