The suite is now passing so moving to resolved.
please re-open if needed.

I am seeing it on other hosts now for check-patch:
http://jenkins.ovirt.org/job/ovirt-system-tests_standard-check-patch/1649/consoleFull
failed with server
'13:18:05 [check-patch.he-basic_suite_master.el7.x86_64] Running on ovirt-srv25.phx.ovirt.org in /home/jenkins/workspace/ovirt-system-tests_standard-check-patch'

and also, the entire suite is failing and its running on other servers
http://jenkins.ovirt.org/job/ovirt-system-tests_he-basic-iscsi-suite-master/426/consoleFull
'10:37:01 Building remotely on ovirt-srv20.phx.ovirt.org (el7 phx integ-tests older-libvirt physical) in workspace /home/jenkins/workspace/ovirt-system-tests_he-basic-iscsi-suite-master'

are we sure its the hosts and not the suites?
if we can't solve it soon we should remove it from check-patch.

The error specifies that /dev/shm didn't have enough space:

15:37:21 [check-patch.he-basic-iscsi_suite_master.el7.x86_64] ERROR:_main_:disk_space requirements are not satisfied.
15:37:21 [check-patch.he-basic-iscsi_suite_master.el7.x86_64] /dev/shm/ost/deployment-he-basic-iscsi-suite-master, Required space: 85899345920, Free space: 67242180608

The job ran on ovirt-srv06 that has since been rebuilt so I can't say more to what filled the shm device. The bare metal has 128GB of RAM so probably something didn't get cleaned up. I can't confirm how cleanups happen for /dev/shm but they may need improvement. We could also add a line to the logs that prints the size of the partition just to confirm it was the right size initially.

can you please check if there was an issue with the host?

It checks for free disk space the Jenkins slave, not Lago VMs.