Segfault with error 4 in doveadm-server

[Alexander Dalloz]

Am 2019-08-19 10:34, schrieb Holger Dehnhardt via dovecot:
> I set up dovecot on two servers with replication enabled. The
> replication is over a vpn connection.
> I get massive segfaults from doveadm-server every few minutes.
> 
> dmesg:
> doveadm-server[30030]: segfault at 0 ip 0000557fa16d2e62 sp
> 00007ffdcaafec50 error 4 in doveadm-server[557fa16a3000+41000]
> [486397.225636] Code: 40 03 4c 8d 3c c3 48 8d 44 24 18 48 89 44 24 08
> 0f 1f 84 00 00 00 00 00 49 8b bc 24 60 01 00 00 e8 e3 2a 00 00 48 89
> 44 24 18 <48> 8b 13 48 8d 35 c4 8d 00 00 48 89 c7 e8 2c 2b 00 00 31 c0
> c6 45
> 
> mail.err
> dovecot: doveadm: Fatal: master: service(doveadm): child 29507 killed
> with signal 11 (core dumps disabled)
> 
> I am absolutely unaware of how I can come to the cause of this error.
> Can anyone give me a hint?
> 
> -----------------------------
> Configuration:
> # 2.2.13: /etc/dovecot/dovecot.conf

First, use a supported dovecot release. Please see

https://dovecot.org/list/dovecot/2018-August/112536.html

In case that's the Debian 8 version open a report with Debian.

> # OS: Linux 5.1.14-xen x86_64 Debian 8.11

[ ... ]

Alexander