HLS dies when navigating its own codebase via GoToDefinition

[Aster89]

Your environment

Which OS do you use?
Up-to-date ArchLinux

Which version of GHC do you use and how did you install it?
GHC 9.10.1 installed via ghcup

How is your project built (alternative: link to the project)?
The project is HLS itself

Which LSP client (editor/plugin) do you use?
(terminal) Vim + YCM

Which version of HLS do you use and how did you install it?
I've pointed my IDE at 91d2b48, which I've built via cabal build exe:haskell-language-server -j8

Have you configured HLS in any way (especially: a hie.yaml file)?
Not that I know of.

Steps to reproduce

1. Open here:
   

   haskell-language-server/plugins/hls-eval-plugin/src/Ide/Plugin/Eval/Handlers.hs

   Line 202 in 91d2b48

   runEvalCmd :: Recorder (WithPriority Log) -> PluginId -> CommandFunction IdeState EvalParams

2. Try GoToDefinition
   1. on EvalParams
      • succeeds
   2. on IdeState
      • RuntimeError: Cannot jump to location
   3. on CommandFunction
      • RuntimeError: Cannot jump to location
3. manually open here:
   

   haskell-language-server/ghcide/src/Development/IDE/Core/Shake.hs

   Line 559 in 91d2b48

   data IdeState = IdeState

4. try GoToDefinition on IdeState value constructor
   • ResponseAbortedException: Response Aborted
5. Asking the IDE for info reveals that

   --   haskell-language-serverCompleter not running
   -- ...                                 
   --   haskell-language-serverCompleter Server State: Dead
   

6. Repeat step 2.1 above
   • RuntimeError: Server is initializing. Please wait.

The whole screencast is available below, but from time 2:00 onwards you can disregard it because it's just me saving the log files.

Expected behaviour

GoTos should work.

Actual behaviour

Server dies?

Debug information

YCM log: https://gist.github.com/Aster89/e88f8c993afd6ec5d5321951329a6fec
ycmd stderr: https://www.dropbox.com/scl/fi/puxmqzlrki3z4l1ucy48j/ycmd_44423_stderr_n9199p2p.log?rlkey=ntwifjlbfj2o1hjduek7je4g4&st=rzo57n1t&dl=0
HLS log: https://gist.github.com/Aster89/a375d5164546d17153aae8e5c99cae77

[fendor]

Thank you for the bug report!

Perhaps this is the same issue as #4674? I don't think we know yet why this is happening.

[sgillespie]

Thank you for the bug report!

Perhaps this is the same issue as #4674? I don't think we know yet why this is happening.

Seems likely:

haskell-language-server: internal error: ARR_WORDS object (0x421b7f7838) entered!
    (GHC version 9.10.1 for x86_64_unknown_linux)
    Please report this as a GHC bug:  https://www.haskell.org/ghc/reportabug

As a workaround, I am currently building HLS on 9.8.4 and have not had a problem