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atom-haskell / ide-haskell-hls

Haskell Language Server support in Atom+IDE-Haskell
MIT License
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haskell-language-server language server for Haskell was closed with code: 1 #2

Open tdiesler opened 3 years ago

tdiesler commented 3 years ago

With ide-haskell-hls-0.0.6 I keep getting the above error. Is there a see why the haskell-language-server is crashing? This is with Atom on MacOS

lierdakil commented 3 years ago

Terribly sorry for the late reply, I missed the notification.

If you run window:toggle-dev-tools from the command palette, and open the console tab, you will see a lot of debug information from HLS printed to console as warnings. In most cases this should be enough to get the general idea of what's going on at least.

P.S. You can get even more verbose logging if you add debugLSP: true to Atom config under core (NB: you need to add it manually, it's not exposed in the GUI). But in most cases you shouldn't need this.

tdiesler commented 3 years ago

In the console I see messages like this ...

image

The various projects are here

lierdakil commented 3 years ago

Welp, apparently HLS "just segfaults", which is entirely unhelpful. I was able to eventually make it crash on this project, but it took a while, and I can't really reproduce the issue reliably (or frankly at all for the past half an hour), so this seems to be a heisenbug in HLS -- at least from what I can tell. I don't think I'll be able to help with that much. FWIW after a cursory Google search, it appears building HLS from source (as opposed to installing prebuilts via ghcup) can help with at least some of these segfaults.

If you decide to open an issue upstream, remember to include the output of haskell-language-server-wrapper --probe-tools and haskell-language-server-wrapper --debug code/payout/src/Astor/Payout.hs in addition to the output from dev. console.

tdiesler commented 3 years ago

Ok, thanks