On 29. Mar 2020, at 16:07, Timo Sirainen <t...@sirainen.com> wrote: > > On 29. Mar 2020, at 15.15, Andi Krischer <a...@michaelpelzer.de> wrote: >> We have a really strange bug with our dovecot setup. After weeks and month >> of debugging we’re finally reached the point when we ask you for help. >> >> Our basic setup is quite simple: a single dovecot 2.3.10 (0da0eff44) install >> on Debian 10 with LDAP as user/passdb and sieve, imap_sieve and mail_crypt >> as mail_plugins. > > Was this happening with old Dovecot versions, or did it start after v2.3.10 > upgrade?
Yes, we implemented this setup with v2.3.5.1 on Debian 9 and had the issue right from the beginning. >> This is what the log says in the moment of crashing: >> dovecot: lmtp(53852): Panic: Module context mail_crypt_user_module missing >> *** backtrace *** (see: https://pastebin.com/YCiFtxmy) > > It shows mailbox_free() in the backtrace, so it's probably crashing in > mail_crypt_mailbox_close()'s MAIL_CRYPT_CONTEXT(box). But looking at the > code, I can't see how that could be possible. Maybe there is some kind of > memory corruption or something. > >> dovecot: lmtp(53852): Fatal: master: service(lmtp): child 53852 killed with >> signal 6 (core dumps disabled - https://dovecot.org/bugreport.html#coredumps) > > Could you get core dumps enabled? See the link. And from the core dump send > at least: > > bt full > fr 6 (or maybe 5 or 7, whichever makes the following command work) > p *box > > Also please send your doveconf -n output. Core dump: https://pastebin.com/g4VkMXsT (hope this is everything - I’m not that familiar with core dumps…) Doveconf: https://pastebin.com/JnhXkYUA Hope this helps!
