action #39893
warning message about "Failed creating CGroup subtree 'mkdir /sys/fs/cgroup//var: Read-only file system at /usr/lib/perl5/vendor_perl/5.18.2/Mojo/File.pm line 72."
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Description
E.g. observed in https://openqa.opensuse.org/tests/734376/file/worker-log.txt
If this "warning" is acceptable it should be phrased in a less severe way or maybe just fixed on o3
Related issues
History
#1
Updated by EDiGiacinto almost 5 years ago
Updated by Can you tell the systemd version installed in that host? Can you also confirm that the service file of that worker is containing the following line https://github.com/os-autoinst/openQA/blob/master/systemd/openqa-worker%40.service#L19 ?
Originally that message was a (non-fatal), but error.
That basically cames from when openQA tries to setup automatically cgroups (to avoid stale QEMU processes that could be left over from test execution runs). Imho it's needed on worker side to be sure that os-autoinst is not leaving anything behind; so i consider it pretty important feature, as otherwise will bring back things like: https://progress.opensuse.org/issues/6958
#2
Updated by EDiGiacinto almost 5 years ago
- Related to action #33037: dead children uncaught (again) added
#3
Updated by okurz almost 5 years ago
Updated by EDiGiacinto wrote:
Can you tell the systemd version installed in that host?
The host is openqaworker1, openSUSE Leap 42.3 with systemd 228-47.1 from openSUSE-Leap-42.3-Update
Can you also confirm that the service file of that worker is containing the following line https://github.com/os-autoinst/openQA/blob/master/systemd/openqa-worker%40.service#L19 ?
Yes, the file /usr/lib/systemd/system/openqa-worker@.service includes Delegate=yes
Originally that message was a (non-fatal), but error.
That basically cames from when openQA tries to setup automatically cgroups (to avoid stale QEMU processes that could be left over from test execution runs). Imho it's needed on worker side to be sure that os-autoinst is not leaving anything behind; so i consider it pretty important feature, as otherwise will bring back things like: https://progress.opensuse.org/issues/6958
I see, make sense to have it warning then. Then however we should investigate why we have it on this host then?
#4
Updated by EDiGiacinto almost 5 years ago
okurz wrote:
EDiGiacinto wrote:
Can you tell the systemd version installed in that host?
The host is openqaworker1, openSUSE Leap 42.3 with systemd 228-47.1 from openSUSE-Leap-42.3-Update
Can you also confirm that the service file of that worker is containing the following line https://github.com/os-autoinst/openQA/blob/master/systemd/openqa-worker%40.service#L19 ?
Yes, the file /usr/lib/systemd/system/openqa-worker@.service includes
Delegate=yesOriginally that message was a (non-fatal), but error.
That basically cames from when openQA tries to setup automatically cgroups (to avoid stale QEMU processes that could be left over from test execution runs). Imho it's needed on worker side to be sure that os-autoinst is not leaving anything behind; so i consider it pretty important feature, as otherwise will bring back things like: https://progress.opensuse.org/issues/6958
I see, make sense to have it warning then. Then however we should investigate why we have it on this host then?
Thanks for the detailed info, yes this definetly needs investigation, also in new systemd versions, Delegate is not a bool explictly anymore ( so we will have to adapt anyway, as there were changes upstream )
#5
Updated by EDiGiacinto over 4 years ago
- Related to action #41102: Stale qemu processes are left again added
#6
Updated by EDiGiacinto over 4 years ago
- Status changed from New to In Progress
Forgot to mark this one as solved, changes to address this were merged PR: https://github.com/os-autoinst/openQA/pull/1794
#7
Updated by EDiGiacinto over 4 years ago
- Status changed from In Progress to Resolved