[Samba] Multi instant samba does not work on samba 4.10.4

[Peter Varkoly]

Hi,

on my servers I install 2 instances of samba: one samba AD (on 3.X DC)  
and an additional samba instance for printserver issues. This have 
worked until version 4.8.9. With version 4.10.4 the smbd process of the 
printserver instance stop with:

exit_daemon: daemon failed to start: Failed to create session, error code 1

The configuration of the AD:

global]
         netbios name = admin
         realm = MEINE.ORG
         workgroup = MEINE
         dns forwarder = 8.8.8.8 192.168.100.1
         server role = active directory domain controller
         idmap_ldb:use rfc2307 = Yes
         check password script = 
/usr/share/oss/tools/check_password_complexity.sh
         winbind enum users = Yes
         winbind enum groups = Yes
         wide links = Yes
         unix extensions = No
         bind interfaces only = yes
         interfaces = 127.0.0.1, 172.16.0.2
         ntlm auth = yes
         template shell = /bin/bash

[sysvol]
        path = /var/lib/samba/sysvol
        read only = No

...

The configuration of the smb-printserver:

global]
         workgroup = MEINE
         realm = MEINE.ORG
         netbios name = printserver
         printcap = cups
         security = ADS
         bind interfaces only = yes
         interfaces = 172.16.0.4

         pid   directory=   /run/sambaprintserver
         cache directory=   /var/lib/printserver
         lock  directory=   /var/lib/printserver/lock
         state directory=   /var/lib/printserver
         private directory= /var/lib/printserver/private

[print$]
         browseable = yes
         comment = Printer Drivers
         create mask = 0664
         directory mask = 0775
         force group = SYSADMINS
         guest ok = no
         path = /var/lib/printserver/drivers
         printable = no
         write list = @SYSADMINS root
         read only = no

[printers]
         browseable = yes
         comment = All Printers
         create mask = 0600
         path = /var/tmp
         printable = yes


The printserver is successfully joined to the AD-domain with 'net ADS 
JOIN -s /etc/samba/smb-printserver.conf -U Administrator%"$passwd"'

The separate directories of the printserver instance do exist.

I've also tried to use "server role = MEMBER SERVER" instead of 
"security = ADS". The result is the same.

The service will be started:

/usr/sbin/smbd -d 10 -F -s /etc/samba/smb-printserver.conf -l 
/var/log/samba/printserver/

The end of the start log is:

[2019/06/06 13:15:58.279380,  2, pid=5854, effective(0, 0), real(0, 0)] 
../../source3/lib/interface.c:345(add_interface)
   added interface eth1:prin ip=172.16.0.4 bcast=172.16.255.255 
netmask=255.255.0.0
[2019/06/06 13:15:58.279420,  3, pid=5854, effective(0, 0), real(0, 0)] 
../../source3/smbd/server.c:1851(main)
   loaded services
[2019/06/06 13:15:58.279434,  5, pid=5854, effective(0, 0), real(0, 0)] 
../../source3/lib/util_names.c:152(init_names)
   Netbios name list:-
   my_netbios_names[0]="PRINTSERVER"
[2019/06/06 13:15:58.279476,  1, pid=5854, effective(0, 0), real(0, 0)] 
../../source3/profile/profile_dummy.c:30(set_profile_level)
   INFO: Profiling support unavailable in this build.
[2019/06/06 13:15:58.279490,  3, pid=5854, effective(0, 0), real(0, 0)] 
../../source3/smbd/server.c:1871(main)
   Standard input is not a socket, assuming -D option
[2019/06/06 13:15:58.279499,  3, pid=5854, effective(0, 0), real(0, 0)] 
../../source3/smbd/server.c:1883(main)
   Becoming a daemon.
[2019/06/06 13:15:58.279518,  0, pid=5854, effective(0, 0), real(0, 0)] 
../../lib/util/become_daemon.c:122(exit_daemon)
   exit_daemon: daemon failed to start: Failed to create session, error 
code 1

What's going wrong?

Thanks

Peter Varkoly