Hi, recently we've been seeing crashes of our zope-2.13.23 server (x64 Linux, python-2.7.11): Sep 2 15:48:09 bach-s97 kernel: runzope[3894]: \ segfault at 7f98f5134054 ip 00007f990a904bc5 sp 00007f98f6a3efb0 \ error 4 in _Acquisition.so[7f990a900000+8000] The reason for this is a bug in _Acquisition.c, which has already been fixed by jamadden: https://github.com/zopefoundation/Acquisition/issues/5 But: the new Acquisition release including that patch is 4.2.2. And if we try to use that in our zope-2.13 buildout, we seem to get lost in the dependency hell;-) For the sake of the zope-2.13 user, would it be possible to apply the fix to the 2.13 branch of Acquisition (it applies cleanly, we did that locallly) and release a 2.13.10 version? If i could be of any help please let me know... Thanks, \wlang{} -- Willi.Langenberger@wu.ac.at Fax: +43/1/31336/90702 IT-Services, WU Wirtschaftsuniversitaet Wien, Austria