Dovecot User Listing Error - getpwent() failed: Invalid Argument

[Aki Tuomi]

Which glibc version are you using?

Aki

On 19.09.2018 09:39, Reuben Farrelly wrote:
> Hi Aki,
>
> How did you go with this in the end?  Do you need anything more from
> me or were you able to reproduce this?
>
> Thanks,
> Reuben
>
> On 1/09/2018 12:41 am, Reuben Farrelly wrote:
>> Sure:
>>
>> https://www.reub.net/files/dovecot/lightning-dovecot.conf
>> https://www.reub.net/files/dovecot/thunderstorm-dovecot.conf
>>
>> Updated nightly.
>>
>> Reuben
>>
>>
>> On 1/09/2018 12:26 am, Aki Tuomi wrote:
>>> Can you provide doveconf -n?
>>>
>>>
>>>
>>> ---
>>> Aki Tuomi
>>> Dovecot oy
>>>
>>> -------- Original message --------
>>> From: Reuben Farrelly <reuben-dovecot at reub.net>
>>> Date: 31/08/2018 17:12 (GMT+02:00)
>>> To: Aki Tuomi <aki.tuomi at dovecot.fi>, Dovecot Mailing List
>>> <dovecot at dovecot.org>
>>> Subject: Re: Dovecot User Listing Error - getpwent() failed: Invalid
>>> Argument
>>>
>>> No.  Neither of those are installed on either system.
>>>
>>> Reuben
>>>
>>> On 1/09/2018 12:09 am, Aki Tuomi wrote:
>>>  > Could apparmor or selinux be causing this!
>>>  >
>>>  >
>>>  >
>>>  > ---
>>>  > Aki Tuomi
>>>  > Dovecot oy
>>>  >
>>>  > -------- Original message --------
>>>  > From: Reuben Farrelly <reuben-dovecot at reub.net>
>>>  > Date: 31/08/2018 16:50 (GMT+02:00)
>>>  > To: Dovecot Mailing List <dovecot at dovecot.org>
>>>  > Subject: Dovecot User Listing Error - getpwent() failed: Invalid
>>> Argument
>>>  >
>>>  > Hi,
>>>  >
>>>  > I'm running dovecot-2.3 git and seeing on 2 of my Dovecot
>>> installations,
>>>  > the following message logged quite frequently:
>>>  >
>>>  > Aug 31 16:55:53 lightning.reub.net dovecot[7698]: auth-worker(7707):
>>>  > Error: getpwent() failed: Invalid argument
>>>  > Aug 31 16:55:53 lightning.reub.net dovecot[7698]: replicator: Error:
>>>  > User listing returned failure
>>>  > Aug 31 16:55:53 lightning.reub.net dovecot[7698]: replicator: Error:
>>>  > listing users failed, can't replicate existing data
>>>  >
>>>  > It appears that this could be having an effect on replication,
>>> but it's
>>>  > unclear because the secondary/replica doesn't see much traffic.
>>>  >
>>>  > Authentication is via PAM and the system is Gentoo Linux x86_64.
>>> passb
>>>  > driver = pam, userdb driver = static .
>>>  >
>>>  > doveadm user -u '*' shows the system users listed twice like this
>>> (is
>>>  > this a problem?) and then prints:
>>>  >
>>>  > ----
>>>  > reuben
>>>  > liam
>>>  > reuben
>>>  > liam
>>>  > <some other users>
>>>  > Error: User listing returned failure
>>>  > Fatal: user listing failed
>>>  > ----
>>>  >
>>>  > To me that doesn't look right.
>>>  >
>>>  > Can anyone suggest what could be causing this?  I don't recall
>>> seeing
>>>  > this message some time ago so I suspect it's a recent change in
>>> either
>>>  > dovecot, or pam or glibc etc..
>>>  >
>>>  > Thanks,
>>>  > Reuben