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

Sure: thunderstorm ~ # cat /etc/nsswitch.conf # /etc/nsswitch.conf: # $Header: /var/cvsroot/gentoo/src/patchsets/glibc/extra/etc/nsswitch.conf,v 1.2 2017/08/12 16:21:44 slyfox Exp $ passwd: compat files shadow: compat files group: compat files hosts: files dns networks: files dns services: db files protocols: db files rpc: db files ethers: db files netmasks: files netgroup: files bootparams: files automount: files aliases: files thunderstorm ~ # Reuben On 19/09/2018 5:41 pm, Aki Tuomi wrote:

Can you provide your /etc/nssswitch.conf?

Aki

On 19.09.2018 10:40, Reuben Farrelly wrote:

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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 +#include

 #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:

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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:

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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:

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Which glibc version are you using?

Aki

On 19.09.2018 09:39, Reuben Farrelly wrote:

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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 >> Date: 31/08/2018 17:12 (GMT+02:00) >> To: Aki Tuomi , Dovecot Mailing List >> >> 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 >>    > Date: 31/08/2018 16:50 (GMT+02:00) >>    > To: Dovecot Mailing List >>    > 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