On Fri 17 Feb 2012 03:46, Mike Gran <spk...@yahoo.com> writes: >> From: Andy Wingo <wi...@pobox.com> > >>> Can you explain what happens here? Is it a deadlock? What’s at >>> ports.c:575? >> >> It was a deadlock, but I fixed it. It was something that locked all >> weak sets, but while doing so allocated memory. Allocating memory ran >> finalizers which tried to manipulate the port set, but that lock was >> already taken: deadlock. >> >> The solution will be to run finalizers in a separate thread, as the JVM >> does. > > As an aside, I can get a similar sort of deadlock during garbage > collection of SMOBs if my smob_free function calls a scheme function. > But the manual does note that you should not call any functions in > SMOB GC finalizers, so that wouldn't happen if I actually followed the > instructions.
Any Scheme function? With Guile 2.0? It should be possible to call arbitrary code from finalizers, if we call finalizers from a separate thread. Andy -- http://wingolog.org/
