Christian Heimes <li...@cheimes.de> added the comment:
The biggest CFFI based dependency of FreeIPA is cryptography, but cryptography does not use weakref in its sources. CFFI on the other hand has a WeakValueDictionary object attached to its internal typecache backend, https://bitbucket.org/cffi/cffi/src/bf80722dea36237710083315e336c81bc8571fd0/cffi/model.py#lines-572 . Perhaps that is the culprit? I checked the CTypeDescrObject from the stacktrace. Three out of three times it's for "unsigned long(*)(void *)". I wasn't able to get any useful information from the other fields yet. (gdb) up 7 #7 0x00007fffe905babc in ctypedescr_dealloc (ct=0x7fffe6d958b0) at c/_cffi_backend.c:401 401 PyObject_ClearWeakRefs((PyObject *) ct); (gdb) p (char*)ct.ct_name $1 = 0x7fffe6d95908 "unsigned long(*)(void *)" (gdb) p ct $2 = (CTypeDescrObject *) 0x7fffe6d958b0 ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue38006> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
