Daniel,
Is there anything in master:0ee3dc5e3edc49cf62f97ddd87a40b12c59b73ff that might cause this kind of deadlock? I am wondering because I still have the intuitive sense that all the problems I am experiencing with Kamailio 4.2 here are caused in some way by my switch to asynchronous call processing.
I don't have any proof that this deadlock is also an extension of that general problem domain. I just have that feeling, because the Kamailio upgrade corresponded to a config upgrade where the major change made was precisely that.
-- Alex