HLS keeps crashing (exit code -11, segfault, bus error, ..) with plutus pioneer program

[tdiesler]

Your environment

Output of haskell-language-server --probe-tools or haskell-language-server-wrapper --probe-tools:

haskell-language-server version: 1.1.0.0 (GHC: 8.10.4) (PATH: .../.ghcup/bin/haskell-language-server-wrapper-1.1.0) (GIT hash: f1c096927186a93d8e3ccd4fe8385cc1b070350b)
Tool versions found on the $PATH
cabal:		3.4.0.0
stack:		2.5.1
ghc:		8.10.4

Which OS do you use: MacOS

Which lsp-client do you use: Atom

Cardano - Plutus Pioneer Program
https://github.com/tdiesler/plutus-pioneer-program/tree/mystuff/code

Contents of hie.yaml:

cradle:
  cabal:
    - path: "./src"
      component: "lib:plutus-proj01"

Steps to reproduce

Open any file in Atom e.g.
https://github.com/tdiesler/plutus-pioneer-program/blob/mystuff/code/proj01/src/Proj01/Counter1.hs

Actual behaviour

Atom repeatedly reports haskell-language-server crash - then gives up.

Include debug information

Execute in the root of your project the command haskell-language-server --debug . and paste the logs here:

...
File:     /Users/tdiesler/git/plutus-pioneer-program/code/proj01/src/Proj01/Types.hs
Hidden:   no
Range:    235:12-235:78
Source:   typecheck
Severity: DsWarning
Message: 
  • The constraint ‘HasType
  Plutus.Contract.Effects.WriteTx.TxSymbol
  Plutus.Contract.Effects.WriteTx.WriteTxResponse
  (Plutus.Contract.Schema.Input s)’ matches
  instance forall k (r :: row-types-1.0.1.0:Data.Row.Internal.Row k)
  (l :: ghc-prim-0.6.1:GHC.Types.Symbol) (a :: k).
  ((r row-types-1.0.1.0:Data.Row.Internal..! l)
  row-types-1.0.1.0:Data.Row.Internal.≈ a) =>
  HasType l a r
  -- Defined in ‘row-types-1.0.1.0:Data.Row.Internal’
  This makes type inference for inner bindings fragile;
  either use MonoLocalBinds, or simplify it using the instance
  • In the type signature:
  logMyTx :: (HasBlockchainActions s) =>
  String -> MyTx -> Contract w s Text ()
File:     /Users/tdiesler/git/plutus-pioneer-program/code/proj01/src/Proj01/Types.hs
Hidden:   no
Range:    241:15-241:18
Source:   typecheck
Severity: DsWarning
Message:  Defined but not used: ‘pad’
File:     /Users/tdiesler/git/plutus-pioneer-program/code/proj01/src/Proj01/Types.hs
Hidden:   no
Range:    248:16-248:19
Source:   typecheck
Severity: DsWarning
Message:  Defined but not used: ‘pad’
haskell-language-server-wrapper: callProcess: /Users/tdiesler/.ghcup/bin/haskell-language-server-8.10.4 "--debug" (exit -11): failed

[jneira]

Hi, thanks for the nice bug report.
If you run directly the command reported (/Users/tdiesler/.ghcup/bin/haskell-language-server-8.10.4 "--debug") in the cli, does it gives more details (in addition to the returned error code -11) about the error?

For completeness, when you use "keeps" do you want to mean that previous versions of hls has been failing in the past?

[tdiesler]

Here you go ...

$ /Users/tdiesler/.ghcup/bin/haskell-language-server-8.10.4 "--debug" 2> hls-crash-debug.txt
Segmentation fault: 11

hls-crash-debug.txt

At first, it worked great and I learned a lot from the linting hints. Lately however, hls keeps crashing and I see a lot of annoying popups and no more useful hints. I installed my Haskell env with ghcup.

hls keeps crashing

Atom makes repeated attempts to run HLS - they crash repeatedly - then Atom gives up.

[tdiesler]

This forum post might be related ...

https://forum.cardano.org/t/setting-up-hls-on-macos-for-plutus-development/57729

[hududed]

I may be facing a similar problem. I am running macOS 11.3.1. For the first few lessons, the HLS works well, but from lesson 4 onward HLS attempts to run 3-4 times, and it stops with the error message

[coc.nvim] The "languageserver.haskell" server crashed 5 times in the last 3 minutes. The server will not be restarted.

❯ haskell-language-server-wrapper --probe-tools
haskell-language-server version: 1.1.0.0 (GHC: 8.10.4) (PATH: /Users/hud/.ghcup/bin/haskell-language-server-wrapper-1.1.0) (GIT hash: f1c096927186a93d8e3ccd4fe8385cc1b070350b)
Tool versions found on the $PATH
cabal:		3.4.0.0
stack:		2.5.1.1
ghc:		8.10.2

❯ ~/.ghcup/bin/haskell-language-server-8.10.2 "--debug"
haskell-language-server version: 1.1.0.0 (GHC: 8.10.2) (PATH: /Users/hud/.ghcup/bin/haskell-language-server-8.10.2~1.1.0) (GIT hash: f1c096927186a93d8e3ccd4fe8385cc1b070350b)
 ghcide setup tester in /Users/hud/plutus-pioneer-program/code/week07.
Report bugs at https://github.com/haskell/haskell-language-server/issues

Step 1/4: Finding files to test in /Users/hud/plutus-pioneer-program/code/week07
Found 5 files

Step 2/4: Looking for hie.yaml files that control setup
Found 1 cradle
  (/Users/hud/plutus-pioneer-program/code/week07/hie.yaml)

Step 3/4: Initializing the IDE

Step 4/4: Type checking the files
2021-05-22 11:12:54.061442 [ThreadId 4] DEBUG hls:	Set files of interest to: [(NormalizedFilePath "/Users/hud/plutus-pioneer-program/code/week07/src/Week07/EvenOdd.hs",OnDisk),(NormalizedFilePath "/Users/hud/plutus-pioneer-program/code/week07/src/Week07/Test.hs",OnDisk),(NormalizedFilePath "/Users/hud/plutus-pioneer-program/code/week07/src/Week07/Homework.hs",OnDisk),(NormalizedFilePath "/Users/hud/plutus-pioneer-program/code/week07/src/Week07/StateMachine.hs",OnDisk),(NormalizedFilePath "/Users/hud/plutus-pioneer-program/code/week07/src/Week07/TestStateMachine.hs",OnDisk)]
2021-05-22 11:12:54.063035 [ThreadId 35] DEBUG hls:	hlint:getIdeas:file:NormalizedFilePath "/Users/hud/plutus-pioneer-program/code/week07/src/Week07/Test.hs"
2021-05-22 11:12:54.063234 [ThreadId 25] DEBUG hls:	hlint:getIdeas:file:NormalizedFilePath "/Users/hud/plutus-pioneer-program/code/week07/src/Week07/Homework.hs"
2021-05-22 11:12:54.063319 [ThreadId 32] DEBUG hls:	hlint:getIdeas:file:NormalizedFilePath "/Users/hud/plutus-pioneer-program/code/week07/src/Week07/EvenOdd.hs"
2021-05-22 11:12:54.063314 [ThreadId 29] DEBUG hls:	hlint:getIdeas:file:NormalizedFilePath "/Users/hud/plutus-pioneer-program/code/week07/src/Week07/StateMachine.hs"
2021-05-22 11:12:54.063307 [ThreadId 30] DEBUG hls:	hlint:getIdeas:file:NormalizedFilePath "/Users/hud/plutus-pioneer-program/code/week07/src/Week07/TestStateMachine.hs"
2021-05-22 11:12:54.064064 [ThreadId 40] INFO hls:	Consulting the cradle for "src/Week07/Homework.hs"
Output from setting up the cradle Cradle {cradleRootDir = "/Users/hud/plutus-pioneer-program/code/week07", cradleOptsProg = CradleAction: Cabal}
> Build profile: -w ghc-8.10.2 -O1
> In order, the following will be built (use -v for more details):
>  - plutus-pioneer-program-week07-0.1.0.0 (lib) (first run)
> Preprocessing library for plutus-pioneer-program-week07-0.1.0.0..
2021-05-22 11:12:54.997172 [ThreadId 40] DEBUG hls:	Session loading result: Right (ComponentOptions {componentOptions = ["-fbuilding-cabal-package","-O0","-outputdir","/Users/hud/.cache/hie-bios/dist-week07-5ae59a6283bcfbe664db14e350456567/build/x86_64-osx/ghc-8.10.2/plutus-pioneer-program-week07-0.1.0.0/build","-odir","/Users/hud/.cache/hie-bios/dist-week07-5ae59a6283bcfbe664db14e350456567/build/x86_64-osx/ghc-8.10.2/plutus-pioneer-program-week07-0.1.0.0/build","-hidir","/Users/hud/.cache/hie-bios/dist-week07-5ae59a6283bcfbe664db14e350456567/build/x86_64-osx/ghc-8.10.2/plutus-pioneer-program-week07-0.1.0.0/build","-stubdir","/Users/hud/.cache/hie-bios/dist-week07-5ae59a6283bcfbe664db14e350456567/build/x86_64-osx/ghc-8.10.2/plutus-pioneer-program-week07-0.1.0.0/build","-i","-i/Users/hud/.cache/hie-bios/dist-week07-5ae59a6283bcfbe664db14e350456567/build/x86_64-osx/ghc-8.10.2/plutus-pioneer-program-week07-0.1.0.0/build","-isrc","-i/Users/hud/.cache/hie-bios/dist-week07-5ae59a6283bcfbe664db14e350456567/build/x86_64-osx/ghc-8.10.2/plutus-pioneer-program-week07-0.1.0.0/build/autogen","-i/Users/hud/.cache/hie-bios/dist-week07-5ae59a6283bcfbe664db14e350456567/build/x86_64-osx/ghc-8.10.2/plutus-pioneer-program-week07-0.1.0.0/build/global-autogen","-I/Users/hud/.cache/hie-bios/dist-week07-5ae59a6283bcfbe664db14e350456567/build/x86_64-osx/ghc-8.10.2/plutus-pioneer-program-week07-0.1.0.0/build/autogen","-I/Users/hud/.cache/hie-bios/dist-week07-5ae59a6283bcfbe664db14e350456567/build/x86_64-osx/ghc-8.10.2/plutus-pioneer-program-week07-0.1.0.0/build/global-autogen","-I/Users/hud/.cache/hie-bios/dist-week07-5ae59a6283bcfbe664db14e350456567/build/x86_64-osx/ghc-8.10.2/plutus-pioneer-program-week07-0.1.0.0/build","-optP-include","-optP/Users/hud/.cache/hie-bios/dist-week07-5ae59a6283bcfbe664db14e350456567/build/x86_64-osx/ghc-8.10.2/plutus-pioneer-program-week07-0.1.0.0/build/autogen/cabal_macros.h","-this-unit-id","plutus-pioneer-program-week07-0.1.0.0-inplace","-hide-all-packages","-Wmissing-home-modules","-no-user-package-db","-package-db","/Users/hud/.cabal/store/ghc-8.10.2/package.db","-package-db","/Users/hud/.cache/hie-bios/dist-week07-5ae59a6283bcfbe664db14e350456567/packagedb/ghc-8.10.2","-package-db","/Users/hud/.cache/hie-bios/dist-week07-5ae59a6283bcfbe664db14e350456567/build/x86_64-osx/ghc-8.10.2/plutus-pioneer-program-week07-0.1.0.0/package.conf.inplace","-package-id","sn-1.5.6.0-0fd73a0b","-package-id","base-4.14.1.0","-package-id","containers-0.6.2.1","-package-id","dt-dflt-0.7.1.1-b193147c","-package-id","frr-xtrs-0.1.0.0-27e2fdf0","-package-id","plygrnd-cmmn-0.1.0.0-c041d089","-package-id","plts-cntrct-0.1.0.0-1f35f431","-package-id","plts-ldgr-0.1.0.0-bd122c2d","-package-id","plts-ldgr-p-0.1.0.0-36cb991a","-package-id","plts-tx-0.1.0.0-1ecdc4cc","-package-id","plts-tx-plgn-0.1.0.0-b5ecfd22","-package-id","plts-s-css-0.1.0.0-f8040030","-package-id","prttyprntr-1.7.0-2cde5284","-package-id","text-1.2.3.2","-XHaskell2010","Week07.EvenOdd","Week07.StateMachine","Week07.Test","Week07.TestStateMachine","-Wall","-fobject-code","-fno-ignore-interface-pragmas","-fno-omit-interface-pragmas","-fno-strictness","-fno-spec-constr","-fno-specialise","-hide-all-packages"], componentRoot = "/Users/hud/plutus-pioneer-program/code/week07", componentDependencies = ["plutus-pioneer-program-week07.cabal","cabal.project","cabal.project.local"]},"/Users/hud/.ghcup/ghc/8.10.2/lib/ghc-8.10.2")
2021-05-22 11:12:55.097871 [ThreadId 40] INFO hls:	Using interface files cache dir: /Users/hud/.cache/ghcide/plutus-pioneer-program-week07-0.1.0.0-inplace-2daa66bb72fd943657903e8aadaaddd4f631c26c
2021-05-22 11:12:55.09815 [ThreadId 40] INFO hls:	Making new HscEnv[plutus-pioneer-program-week07-0.1.0.0-inplace]
2021-05-22 11:12:55.125513 [ThreadId 40] DEBUG hls:	New Component Cache HscEnvEq: (([],Just HscEnvEq 5),fromList [("/Users/hud/plutus-pioneer-program/code/week07/hie.yaml",Just 2021-05-20 11:58:19.082247131 UTC),("cabal.project",Just 2021-05-20 11:58:19.082012496 UTC),("cabal.project.local",Nothing),("plutus-pioneer-program-week07.cabal",Just 2021-05-20 11:58:19.082446397 UTC)])
2021-05-22 11:12:55.134256 [ThreadId 40] DEBUG hls:	Known files updated: fromList [(TargetModule Week07.TestStateMachine,fromList ["/Users/hud/plutus-pioneer-program/code/week07/src/Week07/TestStateMachine.hs"]),(TargetModule Week07.StateMachine,fromList ["/Users/hud/plutus-pioneer-program/code/week07/src/Week07/StateMachine.hs"]),(TargetFile NormalizedFilePath "/Users/hud/plutus-pioneer-program/code/week07/src/Week07/Homework.hs",fromList ["/Users/hud/plutus-pioneer-program/code/week07/src/Week07/Homework.hs"]),(TargetModule Week07.Test,fromList ["/Users/hud/plutus-pioneer-program/code/week07/src/Week07/Test.hs"]),(TargetModule Week07.EvenOdd,fromList ["/Users/hud/plutus-pioneer-program/code/week07/src/Week07/EvenOdd.hs"])]
2021-05-22 11:12:55.134633 [ThreadId 40] DEBUG hls:	Restarting build session (aborting the previous one took 0.00s)
2021-05-22 11:12:55.13478 [ThreadId 18] DEBUG hls:	Finishing build session(exception: AsyncCancelled)
2021-05-22 11:12:55.136251 [ThreadId 85] DEBUG hls:	hlint:getIdeas:file:NormalizedFilePath "/Users/hud/plutus-pioneer-program/code/week07/src/Week07/TestStateMachine.hs"
2021-05-22 11:12:55.136291 [ThreadId 79] DEBUG hls:	hlint:getIdeas:file:NormalizedFilePath "/Users/hud/plutus-pioneer-program/code/week07/src/Week07/EvenOdd.hs"
2021-05-22 11:12:55.136326 [ThreadId 83] DEBUG hls:	hlint:getIdeas:file:NormalizedFilePath "/Users/hud/plutus-pioneer-program/code/week07/src/Week07/Test.hs"
2021-05-22 11:12:55.136558 [ThreadId 84] DEBUG hls:	hlint:getIdeas:file:NormalizedFilePath "/Users/hud/plutus-pioneer-program/code/week07/src/Week07/Homework.hs"
2021-05-22 11:12:55.136844 [ThreadId 85] DEBUG hls:	hlint:getIdeas:file:NormalizedFilePath "/Users/hud/plutus-pioneer-program/code/week07/src/Week07/StateMachine.hs"
2021-05-22 11:12:55.145115 [ThreadId 124] INFO hls:	File:     /Users/hud/plutus-pioneer-program/code/week07/src/Week07/Homework.hs
Hidden:   no
Range:    119:5-119:5
Source:   parser
Severity: DsError
Message:  parse error (possibly incorrect indentation or mismatched brackets)
[1]    16509 segmentation fault  ~/.ghcup/bin/haskell-language-server-8.10.2 "--debug"

Please advise.

[isovector]

@hududed the segmentation fault suggests it's not HLS' fault; it's extremely hard to get Haskell to cause a segfault.

[pepeiborra]

There is a simple workaround as you have found: use Linux. If you are stuck with Mac OS, try building HLS locally using --enable-executable-dynamic, more details in #469

[tdiesler]

I built hls-1.2.0 on MacOS like this ...

./cabal-hls-install --enable-executable-dynamic hls-8.10.4

... and unfortunately got the same error.

[fendor]

 ./cabal-hls-install --enable-executable-dynamic hls-8.10.4

The installation script doesn't support such arguments. It should work if you invoke cabal configure --enable-executable-dynamic && ./cabal-hls-install hls-8.10.4

[tdiesler]

Thanks, but same error unfortunately.