VSCode hanging with HA Dev Container

Development
1

I know this is not a VSCode forum but I thought I would post here as most likely to be people with similar setups that maybe have a similar issue and know of a fix.

So, the basic problem I have is that I get continual freezes of the VSCode instance while using HA dev container under Debian 12 ina VBox environment. I see it hammering the disk (so much so, that the whole Debian environment freezes waiting for access to the disk).

Sometimes I get a VSCode not responding message and if I manage to click close (and it closes when there is some availability to the disk queue), everything frees up again. In most cases, I have to power off the machine through VBox menu (or machine crashes itself). It does not seem to do this with any other VSCode instance I have running.

I only really do HA development with VSCode, so am usually running a few VSCode instances with one being the HA Dev Container.

A bit more about my setup.

Running VBox 7.0.20 with extensions installed in the Debian 12 install
AMD Ryzen 9 3900X 12 core system with 24 virtual cores, 12 allocated to the Debian VM
Total 16GB RAM with 8GB allocated to VM
Windows 11 on host

I used to have an Ubuntu VM to do HA Dev but moved to Debian as had the same issue in that environment and I just thought it needed rebuilding so started with a fresh Debian install. However, the issue has followed.

Has anyone else experienced this and found a solution as it’s driving me nuts!

2

I experience the same from time to time.
It seems to be the linting that cause it, especially with larger files.

I run lovelace_gen and the small difference in the YAML/Jinja2 code from traditional HA YAML/Jinja2 code makes at time go haywire.
It feels a cascading effect where the first “found” error will push it off its normal path and everything after that just spirals out of control.

3

Hmm…I could handle from time to time but I can basically do about an hours work after VM start up before it does it. I have left it sometimes for 10 mins or so and it has finished whatever it is doing bt then it will happen again later. Othertimes, it never recovers (or maybe I just get fed up of waiting) and it needs a forceable restart or the VM reboots.

Other than obviously all the HA files in the dev container, I am not working with particularly big files.

I did suspect it was maybe it loading its cache for typing support and the number of HA files is causing it a problem but then I would have thought most people developing for HA would experience this and there would be a lot of noise about it (either here or on VSCode forums/github issues) but seemingly not.