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Add FAQ to website for Kernel bug issue. #151

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Mar 15, 2020
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Add FAQ to website for Kernel bug issue. #151

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bada6a6
Add FAQ to website for Kernel bug issue.
Mar 12, 2020
ca2be55
Merge branch 'master' into kernel-bug-error-faq
Mar 15, 2020
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12 changes: 12 additions & 0 deletions content/docs/user_guide/FAQ.md
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Expand Up @@ -78,6 +78,18 @@ sudo chown root:root /usr/local/bin/runsc
sudo chmod 0755 /usr/local/bin/runsc
```

### I'm getting an error like `mount submount "/etc/hostname": creating mount with source ".../hostname": input/output error: unknown.`

There is a bug in Linux kernel versions 5.1 to 5.3.15, 5.4.2, and 5.5. Upgrade to a newer kernel or add the following to `/lib/systemd/system/containerd.service` as a workaround.

```
LimitMEMLOCK=infinity
```

And run `systemctl daemon-reload && systemctl restart containerd` to restart containerd.

See [issue #1765](https://gvisor.dev/issue/1765) for more details.

### My container cannot resolve another container's name when using Docker user defined bridge

This is normally indicated by errors like `bad address 'container-name'` when
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