Overheating after update HAOS 15.0

Installation Home Assistant OS
1

After updating to Home Assistant OS 15.0 the CPU usage sky rocket to 90% also the temp to 72ºCelsius (before the average was 45ºC)

Actual versions:

  • Core 2025.3.3
  • Supervisor 2025.03.3
  • Operating System 15.0
  • Frontend 20250306.0

My hardware is a lenovo M90Q with an i5 9400T

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imagen
imagen491×315 7.26 KB

Someone else have these issues?

2

Try rebooting your system and check if the issue persists. If so use htop to find out which process is causing this high load. The processes shown in your screenshot are not using much CPU cycles.

3

I reboot several times and also use htop command to find out what´s going on with no result, the first image is the result of htop

4

Please run the command “iostat -c” and post the output.

5

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what is supposed to show the command?

6

“iostat -c” not “iostat -c~”

7

ohh sorry, my bad

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8

The solution… rollback

ha os update --version 14.2

Hope future update resolve this issue

1 Like
9

If you still want to search for the root cause:

  • 87% of time spent in user space indicates that its not a kernel issue. It could be a custom component or add-on for example that causes this.
  • The next step would be to ssh into the root OS and look at top, iostat, docker stats outputs. To do that you need to setup HAOS root access. See here how to do that: Debugging the Home Assistant Operating System | Home Assistant Developer Docs
  • It might be enough though to use the add-on “Advanced SSH and Web Terminal” and disable “secure mode” in the add-on. You can then run “docker stats” and check if any of the add-ons are causing the issue.
10

interesting, yes i will look at this in my testing enviroment, I want to know why in the version 14.2 all is working fine and with the 15 not.

Also have a raspberry pi 4 with HAOS 15 and that is working perfect, so the issue is only for x86 devices, I saw a lot of people with the same issue.

11

I just found this: after update to OS 15 CPU load extremely high · Issue #3941 · home-assistant/operating-system

It looks like add-ons that do image processing (e.g. frigate) can cause this. Do you use image processing add-ons?

12

Ohh. Yes I use frigate with a google coral for image processing. But also with the frigate add on turned off the % of CPU still the same with 90% average used

13

OK then you would need to dig deeper to find out.

14

The issue persist on OS version 15.1 With no posible solution jet

15

I have a suspicion I am seeing the same thing. Ever since last Thursday it’s (CPU temp) been cycling up and down every 3.5 hours
Will investigate further tomorrow

–EDIT-- I tracked this down. I must have accepted an update to VS Code Server. That was the culprit
For those seeing the same, you will need to restart your PI (In my case) completely, not just HA, after uninstalling this thing
Its amazing, it was such a creeping death.

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16

Interesting… But my issue is with HAOS 15.X in a x86 hardware, I will try updating to 15.2 and checking the VS Code Server in case that´s the issue.

Report later my findings :slight_smile:

17

In the issue, says that the problem is with “Compreface add-on for HAOS” it appear to be an incompatibility of compreface 1.1.0 with the newer linux kernels, it supposed to be fixed in the version 1.2.0 but there isn´t any update to the container with the newer image.

18

VS Code is often the culprit for rising CPU and RAM usage. I leave the addon off unless I need it.

19

same for me and the problem was the compreface addon.
shutdown the addon and all works again.
:frowning: