Crash when using dict quotas with sqlite database

1 Feb 2019 · *=*


      Hello,
After I configured a SQLite backed dict quota backend, the dict process
crashes every time a quota operation is happening.
SQLite: 3.26.0
Dovecot: 2.3.4 (0ecbaf23d)
Linux: 4.20.4.a-1-hardened #1 SMP PREEMPT Fri Jan 25 01:24:51 CET 2019
x86_64 GNU/Linux (Arch Linux)
Filesystem: BTRFS
I can't get any debug output from Dovecot, even after setting log_debug
= cat:* event:* source:* field:*=*
dovecot[6457]: dict(6687): Debug: sqlite: Finished query 'BEGIN
TRANSACTION' in 0 msecs
dovecot[6457]: dict(6687): Fatal: master: service(dict): child 6687
killed with signal 11 (core dumped)
I've attached the output of dovecot -n and the coredump file from
systemd-coredump.
Kind regards,
Marcel Menzel