maashw@maas-hw:~$ sudo systemctl status tgt
* 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: 8746 ExecStartPost=/usr/sbin/tgt-admin -e -c /etc/tgt/targets.conf (code=exited, status=22)
Process: 8743 ExecStartPost=/usr/sbin/tgtadm --op update --mode sys --name State -v offline (code=exited, status=0/SUCCESS)
Main PID: 8741 (tgtd)
Status: "Starting event loop..."
Tasks: 497 (limit: 512)
CGroup: /system.slice/tgt.service
`-8741 /usr/sbin/tgtd -f
Apr 21 13:36:02 maas-hw tgtd[8741]: tgtd: bs_thread_open(409) 16
Apr 21 13:36:02 maas-hw tgtd[8741]: tgtd: device_mgmt(246) sz:102 params:path=/var/lib/maas/boot-resources/snapshot-20160421-063731/ubuntu/amd64/hwe-w/wily/release/root-image
Apr 21 13:36:02 maas-hw tgtd[8741]: tgtd: bs_thread_open(409) 16
Apr 21 13:36:02 maas-hw tgtd[8741]: tgtd: bs_thread_open(423) failed to create a worker thread, 1 Resource temporarily unavailable
Apr 21 13:36:02 maas-hw tgtd[8741]: tgtd: bs_thread_open(437) stopped the worker thread 0
Apr 21 13:36:02 maas-hw tgt-admin[8746]: tgtadm: out of memory
Apr 21 13:36:02 maas-hw tgt-admin[8746]: Command:
Apr 21 13:36:02 maas-hw tgt-admin[8746]: tgtadm -C 0 --lld iscsi --op new --mode logicalunit --tid 32 --lun 1 -b /var/lib/maas/boot-resources/snapshot-20160421-063731/ubuntu/amd64/hwe-w/wily/release/root-image
Apr 21 13:36:02 maas-hw tgt-admin[8746]: exited with code: 22.
Apr 21 13:36:02 maas-hw systemd[1]: tgt.service: Control process exited, code=exited status=22