[swarm] Command 'fallocate -l -6M /root/bigfile2 && sync' failed

[Dmitry Belyaninov]

Detailed bug description:
There is failed SWARM test:
https://product-ci.infra.mirantis.net/view/10.0_swarm/job/10.0.system_test.ubuntu.filling_root/143/console

DevopsCalledProcessError: Command 'fallocate -l -6M /root/bigfile2 && sync' returned exit code 1 while expected [0]
 STDERR:
fallocate: invalid length value specified

Steps to reproduce:
 <put your information here>
Expected results:
pass
Actual result:
fail
Reproducibility:
 <put your information here>
Workaround:
 <put your information here>
Impact:
 <put your information here>
Description of the environment:
 Operation system: <put your information here>
 Versions of components: <put your information here>
 Reference architecture: <put your information here>
 Network model: <put your information here>
 Related projects installed: <put your information here>
Additional information:
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[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/384908

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/384908
Committed: https://git.openstack.org/cgit/openstack/fuel-qa/commit/?id=3faf7d9798cb8a9e11d0642befe592047c56a596
Submitter: Jenkins
Branch: master

commit 3faf7d9798cb8a9e11d0642befe592047c56a596
Author: Artem Grechanichenko <email address hidden>
Date: Tue Oct 11 12:41:19 2016 +0300

    Add check that calculated space to filling not "negative"

    To calculate space to filling on root partition to activate rabbit
    alarm need to calculate left space on root and take away additional 6M.
    If calculated valute less than 0 - skip this action.

    Change-Id: I901833d4211789672b6cedd12db80ac8a92f8d5d
    Closes-Bug: #1631928

[ElenaRossokhina (esolomina)]

reproduced again https://product-ci.infra.mirantis.net/job/10.0.system_test.ubuntu.filling_root/155/testReport/(root)/Case_FillRootPrimaryController__Config_ceph_all_on_neutron_vlan/Step015_fill_root_below_rabbit_disk_free_limit/

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/newton
Review: https://review.openstack.org/414081

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/414081
Committed: https://git.openstack.org/cgit/openstack/fuel-qa/commit/?id=e7a08c1a213920816582296554c7dd9bbdb1c54c
Submitter: Jenkins
Branch: stable/newton

commit e7a08c1a213920816582296554c7dd9bbdb1c54c
Author: Artem Grechanichenko <email address hidden>
Date: Tue Oct 11 12:41:19 2016 +0300

    Add check that calculated space to filling not "negative"

    To calculate space to filling on root partition to activate rabbit
    alarm need to calculate left space on root and take away additional 6M.
    If calculated valute less than 0 - skip this action.

    Change-Id: I901833d4211789672b6cedd12db80ac8a92f8d5d
    Closes-Bug: #1631928
    (cherry picked from commit 3faf7d9798cb8a9e11d0642befe592047c56a596)

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/fuel-qa 11.0.0.0rc1 release candidate.