Comment 27 for bug 1639202

root@juju-rack2:/var/log/maas# maas refresh
root@juju-rack2:/var/log/maas# netstat -untap | grep 3260
tcp 0 0 0.0.0.0:3260 0.0.0.0:* LISTEN 26516/tgtd
tcp6 0 0 :::3260 :::* LISTEN 26516/tgtd

spyderdyne@juju-rack2:~$ service tgt status
‚óè tgt.service - (i)SCSI target daemon
   Loaded: loaded (/lib/systemd/system/tgt.service; enabled; vendor preset: enabled)
   Active: deactivating (stop-sigterm) (Result: exit-code)
     Docs: man:tgtd(8)
  Process: 5557 ExecStartPost=/usr/sbin/tgt-admin -e -c /etc/tgt/targets.conf (code=exited, status=22)
  Process: 5554 ExecStartPost=/usr/sbin/tgtadm --op update --mode sys --name State -v offline (code=exited, status=0/SUCCESS)
 Main PID: 5552 (tgtd)
   Status: "Starting event loop..."
   CGroup: /system.slice/tgt.service
           ‚îî‚îÄ5552 /usr/sbin/tgtd -f

Feb 08 22:25:24 juju-rack2.home.spyderdyne.net tgtd[5552]: tgtd: bs_thread_open(437) stopped the worker thread 4
Feb 08 22:25:24 juju-rack2.home.spyderdyne.net tgtd[5552]: tgtd: bs_thread_open(437) stopped the worker thread 3
Feb 08 22:25:24 juju-rack2.home.spyderdyne.net tgtd[5552]: tgtd: bs_thread_open(437) stopped the worker thread 2
Feb 08 22:25:24 juju-rack2.home.spyderdyne.net tgtd[5552]: tgtd: bs_thread_open(437) stopped the worker thread 1
Feb 08 22:25:24 juju-rack2.home.spyderdyne.net tgtd[5552]: tgtd: bs_thread_open(437) stopped the worker thread 0
Feb 08 22:25:24 juju-rack2.home.spyderdyne.net tgt-admin[5557]: tgtadm: out of memory
Feb 08 22:25:24 juju-rack2.home.spyderdyne.net tgt-admin[5557]: Command:
Feb 08 22:25:24 juju-rack2.home.spyderdyne.net tgt-admin[5557]: tgtadm -C 0 --lld iscsi --op new --mode logicalunit --ti
Feb 08 22:25:24 juju-rack2.home.spyderdyne.net tgt-admin[5557]: exited with code: 22.
Feb 08 22:25:24 juju-rack2.home.spyderdyne.net systemd[1]: tgt.service: Control process exited, code=exited status=22

Out of memory. Mystery solved. ;)