Charles-François Natali added the comment: > Note that in threadmodule.c, in local_clear, we are iterating through all > threads: > > In PyDict_DelItem, if the GIL is released and meanwhile, the list of > threadstates is altered, is that a problem for this loop? So maybe tstate > becomes invalid there.
Yes. If PyDict_DelItem() releases the GIL and tstate is deleted, PyThreadState_Next(tstate) is undefined behavior (it accesses tstate->next). Changing your reproducer to create/wait for termination of threads in a loop in a background thread. ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue17263> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
