Very long hangs when loading specific file

[landaire]

I'm on the latest dev (78bdfd0) and when trying to load this file emacs severely hangs and uses 100% CPU. Really all I have to do to trigger it now is restart emacs, select doc.d from the recent files, and let it hang. It didn't hang the first time I opened it but after performing some project searches and trying to modify a line it would hang. In my log below my main buffer (status I guess?) I can see it loads yas-snippet and then hangs.

I only got it to break out of the hang once. Not sure what was different that time but it lasted about 30s.

System Info

• OS: darwin
• Emacs: 24.5.1
• Spacemacs: 0.105.0
• Spacemacs branch: develop (rev. 78bdfd0)
• Distribution: spacemacs
• Layers:

(emacs-lisp version-control d go rust elixir swift yaml latex markdown auto-completion osx spacemacs-layouts)

[landaire]

Renaming the parent directory (the dmd git repo root) and re-opening the file seems to have fixed it. Is there another cache besides projectile cache? I tried clearing that originally with no luck.

*edit: Never mind. Tried editing line 348 and it crapped out again.

[landaire]

This has something to do with the d layer itself I think. I disabled all plugins and loading the file worked. I enabled all but D, still worked. Enabled it and it hangs.

[landaire]

Alright, finally narrowed it down. It's a combination of having the syntax-checking and d layers active. If I enable the d layer by itself, no problem. If I enable both d and syntax-checking it must really dislike that file and just decides to kill emacs.

edit: I take it back. It worked, now it doesn't. I have no clue.

[StreakyCobra]

I can reproduce it, so it's not only your config. Also just having the d layer alone make this problem appears. Can you also test to be sure it's really the case?

[landaire]

I just disabled all packages and the file loaded successfully. Enabled the d layer and that file breaks. I haven't found any other files that cause the same behavior (although I haven't really been actively looking).

[StreakyCobra]

So we need to find out what is causing the problem. There is only a few packages of code in the d layer. As it's also happening without other layers, there is only the d-mode packages that is activated in this case.

I don't know how to be sure if it is an upstream issue or not, but it looks like so.

[landaire]

I reported the issue in the emacs-d-mode repo as shown above, but in the meantime I've also done some profiling. Is this info useful?

[TheBB]

So if you turn off line numbers, is it faster?

[landaire]

Not really. I noticed a very slight speed increase when I'm in the file trying to make changes it still has delays like crazy to where it's unusable for anything serious. When loading the file I let it load for about 20 seconds before just hitting C-g.

[github-actions]

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