0017780: Kernel/Cgroup memory allocation

ID	Project	Category	View Status	Date Submitted	Last Update

0017780	CentOS-7	kernel	public	2020-10-05 14:52	2020-10-07 13:39

Reporter	rswdc	Assigned To
Priority	high	Severity	major	Reproducibility	random
Status	new	Resolution	open
Product Version	7.8-2003

Summary	0017780: Kernel/Cgroup memory allocation
Description	Related to RH Case: 02759222 Here are links to the bug reports that we appear to be running in to; https://github.com/docker/for-linux/issues/841 https://bugzilla.redhat.com/show_bug.cgi?id=1507149 These pods are in an environment of Kubernetes on Openstack and produce errors similar to below; unable to ensure pod container exists: failed to create container for [kubepods besteffort podc884b870-3f95-40fb-bf75-9d605a1a6bf9] : mkdir /sys/fs/cgroup/memory/kubepods/besteffort/podc884b870-3f95-40fb-bf75-9d605a1a6bf9: cannot allocate memory unable to ensure pod container exists: failed to create container for [kubepods besteffort podd64e638f-c2d3-49e8-ac47-6fbd1db30b6d] : mkdir /sys/fs/cgroup/memory/kubepods/besteffort/podd64e638f-c2d3-49e8-ac47-6fbd1db30b6d: cannot allocate memory. --- I've attached the sosreport of the instance RH asked specifically to carry over;
Steps To Reproduce	Unfortunately, as I understand, this is kind of happening at random...
Additional Information	If more details are needed, please let us know.
Tags	centos 7, kernel, openstack

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Date Modified	Username	Field	Change
2020-10-05 14:52	rswdc	New Issue
2020-10-05 14:52	rswdc	Tag Attached: centos 7
2020-10-05 14:52	rswdc	Tag Attached: kernel
2020-10-05 14:52	rswdc	Tag Attached: openstack
2020-10-07 13:39	rswdc	Issue cloned: 0017783
2020-10-07 13:39	rswdc	Relationship added	parent of 0017783

parent of	0017783	new		Kernel/Cgroup memory allocation
Not all the children of this issue are yet resolved or closed.