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datafolder: engine-cli-edge
datafile: docker_info
title: docker info
---
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## Warnings about kernel support

If your operating system does not enable certain capabilities, you may see
warnings such as one of the following, when you run `docker info`:

```none
WARNING: Your kernel does not support swap limit capabilities. Limitation discarded.
```

```none
WARNING: No swap limit support
```

You can ignore these warnings unless you actually need the ability to
[limit these resources](/engine/admin/resource_constraints.md), in which case you
should consult your operating system's documentation for enabling them.
[Learn more](/engine/installation/linux/linux-postinstall.md#your-kernel-does-not-support-cgroup-swap-limit-capabilities).