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

[Aki Tuomi]

Can you provide your /etc/nssswitch.conf?

Aki


On 19.09.2018 10:40, Reuben Farrelly wrote:
> I've been running with this almost identical patch already for some time:
>
> diff -up dovecot-2.3.0.1/src/auth/mycrypt.c.libxcrypt
> dovecot-2.3.0.1/src/auth/mycrypt.c
> --- dovecot-2.3.0.1/src/auth/mycrypt.c.libxcrypt       2018-02-28
> 15:28:58.000000000 +0100
> +++ dovecot-2.3.0.1/src/auth/mycrypt.c 2018-03-27 10:57:38.447769201
> +0200
> @@ -14,6 +14,7 @@
>  #  define _XPG6 /* Some Solaris versions require this, some break
> with this */
>  #endif
>  #include <unistd.h>
> +#include <crypt.h>
>
>  #include "mycrypt.h"
>
> That fixed the build problem I had, but the warning below remains.
>
> (Tracking master-2.3 git)
>
> Reuben
>
>
> On 19/09/2018 5:34 pm, Aki Tuomi wrote:
>> This is bit of a longshot, but can you try applying
>> https://github.com/dovecot/core/commit/63a74b9.patch and see if this
>> helps?
>>
>> Aki
>>
>>
>> On 19.09.2018 10:33, Reuben Farrelly wrote:
>>> glibc-2.28.
>>>
>>> There was a posting by Michael Marley on 31/08 saying he saw something
>>> similar to this problem after upgrading to 2.28 as well with 'doveadm
>>> purge'.
>>>
>>> Reuben
>>>
>>> On 19/09/2018 4:50 pm, Aki Tuomi wrote:
>>>> 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
>>>>
>>