Closed ThomasCassimon closed 5 years ago
Oh! This issue tracker is for the open source docker registry, not for the docker engine (which is based on the moby codebase in https://github.com/moby/moby). I see an issue was also opened in https://github.com/docker/for-linux/issues/774, so let me close this one in favor of that one.
We also reported this issue to docker/for-linux
Expected behavior
K8s/Docker works without a hitch on Ubuntu 16.04.
Actual behavior
When dockers are running on the server, the following errors are generated by dmesg.
Eventually, the server crashes (after about 3-4 days since first docker boot) and the last thing that can be seen in the kern.log are the SLUB errors.
Related problems I found: https://pingcap.com/blog/try-to-fix-two-linux-kernel-bugs-while-testing-tidb-operator-in-k8s/ opencontainers/runc#1725 kubernetes/kubernetes#61937 (comment)
However, these issues are related to CentOS and not Ubuntu. Additionally, these issues claim tasks are blocked, which doesn't happen according to our dmesg.
Steps to reproduce the behavior
Deploy a Docker + K8s + Rancher setup
Output of
docker version
:Output of
docker info
:The servers are Dell Poweredges R430. One has been configured as a master, the other as a slave, both have the problem. These are new servers on which a clean 16.04 image was installed.
Any idea on what could be the cause would be greatly appreciated