We have an extension module which works fine with CPython but deadlocks every time in PyPy.
The problem is induced when the C++ code in the module (having been invoked from a Python thread) prepares to call back into Python again by calling PyGILState_Ensure. It seems at this point we try to acquire the GIL mutex while already (presumably) holding it - any other threads at this point are also waiting on the mutex so it isn't held elsewhere. This seems to occur from a call to rffi.aroundstate.after() - I assume that the invariant here is that the before() has already executed but that seems not to be the case here. What is supposed to trigger that? Thanks for any assistance in advance. Nick _______________________________________________ pypy-dev mailing list pypy-dev@python.org https://mail.python.org/mailman/listinfo/pypy-dev
