controller node hangs with zombie process

[Leontii Istomin]

[root@fuel ~]# fuel --fuel-version
api: '1.0'
astute_sha: f7cda2171b0b677dfaeb59693d980a2d3ee4c3e0
auth_required: true
build_id: 2015-02-07_20-50-01
build_number: '76'
feature_groups:
- mirantis
fuellib_sha: 64f3ebe9fcbd18bf6c80a948e06061783a090347
fuelmain_sha: c799e3a6d88289e58db764a6be7910aab7da3149
nailgun_sha: 2ef819732a3ee7acf7b610e7d1c1a6da0434c1a0
ostf_sha: 3b57985d4d2155510894a1f6d03b478b201f7780
production: docker
release: 6.0.1
release_versions:
  2014.2-6.0.1:
    VERSION:
      api: '1.0'
      astute_sha: f7cda2171b0b677dfaeb59693d980a2d3ee4c3e0
      build_id: 2015-02-07_20-50-01
      build_number: '76'
      feature_groups:
      - mirantis
      fuellib_sha: 64f3ebe9fcbd18bf6c80a948e06061783a090347
      fuelmain_sha: c799e3a6d88289e58db764a6be7910aab7da3149
      nailgun_sha: 2ef819732a3ee7acf7b610e7d1c1a6da0434c1a0
      ostf_sha: 3b57985d4d2155510894a1f6d03b478b201f7780
      production: docker
      release: 6.0.1

Baremetal,Ubuntu, HA, Neutron-gre,Ceilometer,Sahara,Ceph-all, Debug, nova-quotas,6.0.1_76
Controllers:3 Computes:96

deployment was successfull, but during rally tests controller node was hunged.
I couldn't perform any bash command:
ls -la
-bash: fork: Cannot allocate memory
I couldn't open nw ssh connection. I couldn't reach bash of the node even ipmi.
Beheviour very similar with https://bugs.launchpad.net/fuel/+bug/1422186, but disks are ok.

from atop dump I can see that at 2015/02/21 10:44:01 we had zombie process, but I can't detect the process.
Also tslpi grows from Feb 21 10:43
Keystone and most of logs stopped at 10:43.

atop is here https://drive.google.com/a/mirantis.com/file/d/0Bx4ptZV1Jt7hNnNaVDg0ZkgwYkk/view?usp=sharing
I'll upload DG asap

[Leontii Istomin (listomin)]

DG: https://drive.google.com/a/mirantis.com/file/d/0Bx4ptZV1Jt7hUGlSNHBPYWhxZzg/view?usp=sharing

[Michael Semenov (msemenov)]

Considered the same as https://bugs.launchpad.net/fuel/+bug/1422186
So, Won't Fix till https://blueprints.launchpad.net/fuel/+spec/ha-fencing is implemented