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Hi,
I am trying to boot an instance using pxe deployment process.I am using
cirros-0.3.4-x86_64-uec image to boot the baremetal server VM.ramdisk and
kernel images are being deployed successfully , but at kernel
initialization time its getting stuck there.In console logs I can see that
tgtd daemon is failing.

CONSOLE LOGS:
Jul 29 23:17:18 (none) daemon.warn tgtd: tgtd logger started, pid:219
debug:0^M
waiting for tgtd socket...found^M
Jul 29 23:17:19 (none) daemon.err tgtd: iser_ib_init(3351) Failed to
initialize RDMA; load kernel modules?^M
Jul 29 23:17:19 (none) daemon.err tgtd: work_timer_start(150) use signal
based scheduler^M
Jul 29 23:17:19 (none) daemon.err tgtd: bs_init_signalfd(271) could not
open backing-store module directory /usr/lib/tgt/backing-store

ir-cond logs:

2015-07-30 04:55:47.095 355 ERROR ironic.drivers.base [-] vendor_passthru
failed with method pass_deploy_info
2015-07-30 04:55:47.095 355 ERROR ironic.drivers.base Traceback (most
recent call last):
2015-07-30 04:55:47.095 355 ERROR ironic.drivers.base   File
"/opt/stack/ironic/ironic/drivers/base.py", line 614, in passthru_handler
2015-07-30 04:55:47.095 355 ERROR ironic.drivers.base     return
func(*args, **kwargs)
2015-07-30 04:55:47.095 355 ERROR ironic.drivers.base   File
"/opt/stack/ironic/ironic/conductor/task_manager.py", line 129, in wrapper
2015-07-30 04:55:47.095 355 ERROR ironic.drivers.base     return f(*args,
**kwargs)
2015-07-30 04:55:47.095 355 ERROR ironic.drivers.base   File
"/opt/stack/ironic/ironic/drivers/modules/iscsi_deploy.py", line 815, in
pass_deploy_info
2015-07-30 04:55:47.095 355 ERROR ironic.drivers.base
uuid_dict_returned = continue_deploy(task, **kwargs)
2015-07-30 04:55:47.095 355 ERROR ironic.drivers.base   File
"/opt/stack/ironic/ironic/drivers/modules/iscsi_deploy.py", line 392, in
continue_deploy
2015-07-30 04:55:47.095 355 ERROR ironic.drivers.base
_fail_deploy(task, msg)
2015-07-30 04:55:47.095 355 ERROR ironic.drivers.base   File
"/opt/stack/ironic/ironic/drivers/modules/iscsi_deploy.py", line 365, in
_fail_deploy
2015-07-30 04:55:47.095 355 ERROR ironic.drivers.base     raise exception.
InstanceDeployFailure(msg)
2015-07-30 04:55:47.095 355 ERROR ironic.drivers.base
InstanceDeployFailure: Deploy failed for instance
42c3dea0-1f08-44f6-a38a-e6bd16d1212a.
Error: Unexpected error while running command.
2015-07-30 04:55:47.095 355 ERROR ironic.drivers.base Command: sudo
ironic-rootwrap /etc/ironic/rootwrap.conf iscsiadm -m discovery -t st -p
50.0.0.10:3260
2015-07-30 04:55:47.095 355 ERROR ironic.drivers.base Exit code: 4
2015-07-30 04:55:47.095 355 ERROR ironic.drivers.base Stdout: u''
2015-07-30 04:55:47.095 355 ERROR ironic.drivers.base Stderr: u'iscsiadm:
connect to 50.0.0.10 timed out\niscsiadm: connect to 50.0.0.10 timed
out\niscsiadm: connect to 50.0.0.10 timed out\niscsiadm: connect to
50.0.0.10 timed out\niscsiadm: connect to 50.0.0.10 timed out\niscsiadm:
connect to 50.0.0.10 timed out\niscsiadm: connection login retries
(reopen_max) 5 exceeded\niscsiadm: Could not perform SendTargets discovery:
encountered connection failure\n'
2015-07-30 04:55:47.095 355 ERROR ironic.drivers.base
2015-07-30 04:55:47.217 355 DEBUG ironic.conductor.task_manager [-]
Successfully released exclusive lock for calling vendor passthru on node
ac0a1e31-2545-4d26-988a-56134584721e (lock was held 496.37 sec)
release_resources /opt/stack/ironic/ironic/conductor/task_manager.py:305

I would really appreciate any help/discussion/pointers.Please suggest.
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