[staging] Staging 5.1.2 bvt ubuntu test failed with segmentation fault

[Vadim Rovachev]

Exception in thread Thread-22 (most likely raised during interpreter shutdown):
Traceback (most recent call last):
  File "/usr/lib/python2.7/threading.py", line 810, in __bootstrap_inner
 Exception in thread Thread-10 (most likely raised during interpreter shutdown):
Traceback (most recent call last):
  File "/usr/lib/python2.7/threading.py", line 810, in __bootstrap_innerException in thread Thread-70 (most likely raised during interpreter shutdown):
 Exception in thread Thread-8 (most likely raised during interpreter shutdown):
Traceback (most recent call last):
  File "/usr/lib/python2.7/threading.py", line 810, in __bootstrap_inner
  File "/home/jenkins/venv-nailgun-tests/local/lib/python2.7/site-packages/paramiko/transport.py", line 1642, in run
<type 'exceptions.AttributeError'>: 'NoneType' object has no attribute 'error'
 Exception in thread Thread-4 (most likely raised during interpreter shutdown):
Traceback (most recent call last):Exception in thread Thread-60 (most likely raised during interpreter shutdown):
 Exception in thread Thread-76 (most likely raised during interpreter shutdown):Exception in thread Thread-6 (most likely raised during interpreter shutdown):Exception in thread Thread-30 (most likely raised during interpreter shutdown):
Traceback (most recent call last):
 Exception in thread Thread-20 (most likely raised during interpreter shutdown):Exception in thread Thread-62 (most likely raised during interpreter shutdown):Exception in thread Thread-66 (most likely raised during interpreter shutdown):
Traceback (most recent call last):Exception in thread Thread-48 (most likely raised during interpreter shutdown):
Traceback (most recent call last):Exception in thread Thread-26 (most likely raised during interpreter shutdown):Exception in thread Thread-74 (most likely raised during interpreter shutdown):
Traceback (most recent call last):Exception in thread Thread-98 (most likely raised during interpreter shutdown):
Traceback (most recent call last):Exception in thread Thread-52 (most likely raised during interpreter shutdown):Exception in thread Thread-100 (most likely raised during interpreter shutdown):Exception in thread Thread-68 (most likely raised during interpreter shutdown):
Traceback (most recent call last):Exception in thread Thread-2 (most likely raised during interpreter shutdown):Exception in thread Thread-86 (most likely raised during interpreter shutdown):Exception in thread Thread-16 (most likely raised during interpreter shutdown):Exception in thread Thread-72 (most likely raised during interpreter shutdown):Exception in thread Thread-84 (most likely raised during interpreter shutdown):
 Exception in thread Thread-40 (most likely raised during interpreter shutdown):Exception in thread Thread-18 (most likely raised during interpreter shutdown):Exception in thread Thread-50 (most likely raised during interpreter shutdown):Exception in thread Thread-80 (most likely raised during interpreter shutdown):
 Exception in thread Thread-24 (most likely raised during interpreter shutdown):

 Exception in thread Thread-14 (most likely raised during interpreter shutdown):Exception in thread Thread-82 (most likely raised during interpreter shutdown):

Traceback (most recent call last): File "/home/jenkins/venv-nailgun-tests/local/lib/python2.7/site-packages/paramiko/transport.py", line 1642, in run
Segmentation fault

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