index problems after update

Hajo Locke Hajo.Locke at
Thu Feb 21 10:53:03 EET 2019


Am 20.02.2019 um 10:39 schrieb Aki Tuomi via dovecot:
>> On 18 February 2019 09:28 Hajo Locke via dovecot <dovecot at> wrote:
>> Hello,
>>   it seems we need a dovecot developers opinion. May be we hit a bug or cant help ourselves.
Thanks for your answer.
> Core dump with backtrace would help, if possible to acquire. Please refer to for information how to get a core dump.
> Aki
Unfortunately its hard to get a backtrace because dovecot is not 
crashing. so it seems to be more a kind of logic problem in code and no 
unexpected situation.
yesterday evening i had next incident. I upgraded from to, but same behaviour. Also is tricked by the broken 
index and delivers no new mails. it starts delivering if i delete index 
files. At this point i cant tell if also has same bug and 
writes a damaged index, but very likely.  We dont know this problems 
with 2.2.22, between 2.2.22 and a change on mbox-index code 
must happend which leads to this big problem. So imapd cant do what he 
was created for.

For next incident i prepared a on base of Ubuntu 18.10 and will 
try this. In my opinion this is a major problem and i expect a lot of 
affected people with version > 2.2.22 and classic mbox-storage.


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