Package: samba https://bugzilla.samba.org/show_bug.cgi?id=13454 has a patch which appears to apply to 4.5. It will give poor but better than nothing backtraces in the AD DC's 'samba' binary.
Please include in Debian to make bug reports that come here or upstream more practical to triage. Thanks! Andrew Bartlett -- Andrew Bartlett http://samba.org/~abartlet/ Authentication Developer, Samba Team http://samba.org Samba Developer, Catalyst IT http://catalyst.net.nz/services/samba
