# An excursion into a mount propagation bug

DevFeed: [An excursion into a mount propagation bug](<https://devfeed.tech/articles/an-excursion-into-a-mount-propagation-bug-33954.md>)

Original publisher: [Read original article](<https://brauner.io/2023/01/05/mount-propagation-bug.html>)

Author: Christian Brauner

Published: 2023-01-04T23:00:00Z

Content type: article

Language: en

Sources: [Personal blog of Christian Brauner](<https://devfeed.tech/sources/personal-blog-of-christian-brauner.md>)

Topics: [mount](<https://devfeed.tech/topics/mount.md>), [bug](<https://devfeed.tech/topics/bug.md>), [debugging](<https://devfeed.tech/topics/debugging.md>)

Tags: [bug](<https://devfeed.tech/tags/bug.md>), [data](<https://devfeed.tech/tags/data.md>), [debugging](<https://devfeed.tech/tags/debugging.md>), [mount](<https://devfeed.tech/tags/mount.md>), [test](<https://devfeed.tech/tags/test.md>)

## AI overview

An article examines a difficult-to-reproduce mount propagation bug involving a network namespace persisted by bind-mounting it in a separate mount namespace. It describes how the bug was reproduced and clarifies the shared, peer, master, and slave mount concepts used to understand the relevant code.

## Source excerpt

Introduction