# Whole machine hangs during upgrade

**URL:** <https://meta.discourse.org/t/whole-machine-hangs-during-upgrade/293592>\
**Category:** Self-hosting\
**Tags:** server-resources\
**Created:** [January 31, 2024, 6:21am UTC](https://meta.discourse.org/t/whole-machine-hangs-during-upgrade/293592 "2024-01-31T06:21:15Z")\
**Posts on this page:** 1\
**Showing post:** 17

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**Author:** ![Ed\_S](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/ed_s/32/134015_2.png) [@Ed\_S](https://meta.discourse.org/u/Ed_S)\
**Post date:** [February 2, 2024, 9:14am UTC](https://meta.discourse.org/t/whole-machine-hangs-during-upgrade/293592/17 "2024-02-02T09:14:28Z")

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Thanks @uwe_keim - I’m going to suppose that those kernel tunables are the reason you needed to add swap, even though it didn’t seem to be used. (The same would apply if you’d needed to add loads of RAM, because the total available memory is RAM+swap.)

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