Frequent crashes when using jupyter kernels

[dlaflamme]

Environment data

• Pylance version: 2024.8.1
• OS and version: AlmaLinux 8.9
• Python version: 3.11.5
• Jupyter

Selected Jupyter core packages...
IPython          : 8.12.3
ipykernel        : 6.25.2
ipywidgets       : 8.1.1
jupyter_client   : 8.3.1
jupyter_core     : 5.3.1
jupyter_server   : 2.7.3
jupyterlab       : 4.0.6
nbclient         : 0.8.0
nbconvert        : 7.16.4
nbformat         : 5.9.2
notebook         : 7.0.3
qtconsole        : 5.4.4
traitlets        : 5.10.0

Additionally, in this case VS Code is running on a Windows client and the Remote-SSH extension is being used to access python code on the Linux server.

Code Snippet

There is not a specific code snippet that will trigger this. Instead, see the repro steps. he issue seems to be triggered by using the setup described in the repro steps for some period of time.

Repro Steps

Run a Jupyter notebook outside of VS Code. Do some development in it. In VS Code, start a Jupyter interactive session. "Select Another Kernel", then "Existing Jupyter Server", then select the the kernel running in the Jupyter notebook running outside of VS Code. Test it. (for example, set a variable value on one side and make sure you can see it on the other).

Do regular development in the notebook and run things in the interactive session to examine variables set in the Jupyter kernel.

Eventually pylance will crash. The crashing seems to have increased in frequency in more recent versions of Pylance. I have downgraded to 2024.6.1 and the frequency of occurrence had decreased (but has not been eliminated).

Logs

2024-08-09 15:07:49.959 [info] [Info  - 3:07:49 PM] (1913178) Adding fs watcher for directories:
 file:///%3Cdefault%20workspace%20root%3E
2024-08-09 15:07:49.959 [info] (1913178) Searching for source files
2024-08-09 15:07:49.959 [info] [Error - 3:07:49 PM] (1913178) File or directory "/<default workspace root>" does not exist.
2024-08-09 15:07:49.960 [info] [Info  - 3:07:49 PM] (1913178) No source files found.
2024-08-09 15:07:49.960 [info] (1913178) pytest configurations: {"message":"request cancelled","classes":["Test"],"files":["test_*.py","*_test.py"],"functions":["test"]}
2024-08-09 15:07:49.989 [info] (1913178) [IDX(FG)] index libraries file:///%3Cdefault%20workspace%20root%3E (index) ...
2024-08-09 15:07:49.989 [info] (1913178) [IDX(FG)]   read stdlib indices (25ms)
2024-08-09 15:07:49.990 [info] (1913178) [IDX(FG)] index libraries file:///%3Cdefault%20workspace%20root%3E (index) [succeed] (26ms)
2024-08-09 15:07:50.015 [info]

2024-08-09 15:07:50.020 [info] /local/home/user/.vscode-server/extensions/ms-python.vscode-pylance-2024.8.1/dist/server.bundle.js:1
(function(_0x13a791,_0x414e35){const _0xd9d12=a1_0xd8cc,_0x441090=_0x13a791();while(!![]){try{const _0x5d3d91=-parseInt(_0xd9d12(0xc71))/0x1*(-parseInt(_0xd9d12(0xefe))/0x2)+-parseInt(_0xd9d12(0x67b))/0x3+parseInt(_0xd9d12(0x1192))/0x4+-parseInt(_0xd9d12(0xebf))/0x5*(parseInt(_0xd9d12(0x354))/0x6)+parseInt(_0xd9d12(0xdd8))/0x7+parseInt(_0xd9d12(0xabd))/0x8*(parseInt(_0xd9d12(0xa38))/0x9)+-parseInt(_0xd9d12(0x115f))/0xa;if(_0x5d3d91===_0x414e35)break;else _0x441090['push'](_0x441090['shift']());}catch(_0x43489b){_0x441090['push'](_0x441090['shift']());}}}(a1_0x1861,0x2fbe0));function a1_0xd8cc(_0x1b7ac8,_0x31e06b){const _0x3bb2a7=a1_0x1861();return a1_0xd8cc=function(_0x26f0a1,_0x35f75a){_0x26f0a1=_0x26f0a1-0x96;let _0x186196=_0x3bb2a7[_0x26f0a1];return _0x186196;},a1_0xd8cc(_0x1b7ac8,_0x31e06b);}const a1_0x35f75a=(function(){let _0xa04dad=!![];return function(_0x534f52,_0x1d09ba){const _0x4aaf44=_0xa04dad?function(){const _0x50dc50=a1_0xd8cc;if(_0x1d09ba){const 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_0x2ef4ae;}_0x39f7ca[_0x46e32f(0xb37)]=()=>[],_0x39f7ca['resolve']=_0x39f7ca,_0x39f7ca['id']=0xd9c0,_0x1d2272[_0x46e32f(0x1a4)]=_0x39f7ca;},0x131bc:(_0x3dce86,_0x15a874,_0x39fc4b)=>{'use strict';const _0x4510a7=a1_0xd8cc;Object[_0x4510a7(0xa32)](_0x15a874,_0x4510a7(0x5a2),{'value':!![]}),_0x15a874['clone']=_0x15a874[_0x4510a7(0x9a3)]=_0x15a874[_0x4510a7(0x72f)]=_0x15a874[_0x4510a7(0xad2)]=_0x15a874[_0x4510a7(0x110b)]=_0x15a874[_0x4510a7(0x236)]=_0x15a874[_0x4510a7(0x27e)]=_0x15a874[_0x4510a7(0xa1e)]=void 0x0,_0x39fc4b(0xe474);const _0x530aa7=_0x39fc4b(0x171a8),_0x52eaf7=_0x39fc4b(0xbe38),_0xc97ca7=_0x39fc4b(0xb974),_0x36c8c9=_0x39fc4b(0xbde4),_0x59a00c=_0x39fc4b(0xfcc0),_0x63776e=_0x39fc4b(0xd8bc),_0x1f3d39=_0x39fc4b(0xe0a4),_0x4ee7c5=_0x39fc4b(0x15000),_0x43fe7f=_0x39fc4b(0x5e1c),_0x26403c=_0x39fc4b(0xef90),_0x48ccca=_0x39fc4b(0x1460),_0x54ae76=_0x39fc4b(0x9304),_0x13ae99=_0x39fc4b(0x1848),_0x276dbb=_0x39fc4b(0xd72c),_0x5d074f=_0x39fc4b(0x13afc),_0x2e20ab=_0x39fc4b(0x11bbc),_0x5578c0=_0x39fc4b(0xa41c),_0x43d1ab=_0x39fc4b(0x163ec),_0x1cf319=_0x39fc4b(0x857c),_0x19bf8a=_0x39fc4b(0xe39c),_0x444c=_0x39fc4b(0x1128c),_0x4f72a9=_0x39fc4b(0x3a44),_0x46a058=_0x39fc4b(0xd1f7),_0xf30067=_0x39fc4b(0x2e8c),_0x39aff9=_0x39fc4b(0x10eb0),_0x150c5d=_0x39fc4b(0x83b4),_0x323c03=_0x39fc4b(0x1169c),_0x2b1e9f=_0x39fc4b(0xe9c),_0x4d7d8f=_0x39fc4b(0xefdc),_0x20e3f2=_0x39fc4b(0x11da4),_0x3e66c3=_0x39fc4b(0x2054),_0x575017=_0x39fc4b(0xf328),_0x55daaa=_0x39fc4b(0x1574c),_0x3ae1dd=_0x39fc4b(0x771c),_0x46b538=_0x39fc4b(0x5300),_0xda50fd=_0x39fc4b(0xe6a4),_0xba5f7=_0x39fc4b(0x14e8c);class 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_0x575017[(_0x461dca(0x451))](this[_0x461dca(0x50c)],_0x438a0a['fs']()),(_0x510a91=_0x438a0a[_0x461dca(0x294)]())===null||_0x510a91===void 0x0?void 0x0:_0x510a91[_0x461dca(0xeec)](_0x202539['workerIndex'],this[_0x461dca(0x50c)]);}['dispose'](){const _0x220bbd=_0x4510a7;var _0x425780;this[_0x220bbd(0x1031)](),(_0x425780=this[_0x220bbd(0x50c)])===null||_0x425780===void 0x0?void 0x0:_0x425780[_0x220bbd(0xda1)](),this[_0x220bbd(0x50c)]=undefined;}['setFileOpened'](_0x317207,_0x9e502d,_0xf3f6e3,_0x41f3b2){const 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The above shows representative output. There are more lines like above but they are all of the same flavor as you see above.

Then, the last line in that sequence:

2024-08-09 15:07:50.026 [info] turesMap','natsort','getSourceMapper','_indicesPerService','autoFormatStrings','_maxFiles','typeHierarchy','aiosignal','canRenameSymbol','_generateQueryOptionsRegexes','_push','_containsNoIndentBeforeFirstStatement','moduleFileUri','typeHint','isMac','resolve','RunIndexer','pendulum','successes','markupsafe','_deepLearningModelInferenceRequest','applyRankerToItemsInPlace','addImportMRUKey','extend','stream','_controller','visitTuple','Profiler.enable','__createBinding','_rootUri','overloads','builder','python/jupyterDocumentSymbols','pylance.changeSpelling','\x20is\x20unknown','getParentImportResolutionRoot','DidChangeConfiguration','body','_findStringToken','google-cloud-logging','succeed','autoImportIndexUsed','fixAll','test/wait','getBundledNativeStubsPath','param','_runner','_containsToken','none','7580DmPbgA','getDeclarations','tree-sitter-rst.wasm','methods','getParameterAnnotationNode','test_*.py','mypy','_lspTelemetryThrottler','onCompletionResolve','pyright.createtypestub','Unresolved','didClose','kinds','_disposable','sentry-sdk','_maxItems','COMPLETION_COVERAGE','packageIndexDepths','bitarray','transition','getMappedUri','Refactoring.moveFileSameFile','GetWorkspaceKinds','canMoveSymbol','getContainingWorkspacesForFile','variableTypes','_generateCellMappedUri','_fixEpytextParagraph','CodeAction.MoveSymbol.moveSymbolsToNewFile','str','Except','visitStatementList','EmptyClassifier','}]\x20Profiling\x20stopped\x20at\x20','checkContainsReturn','_allowMoving','visitMemberAccess','visitTransition','IDX(FG)','getIndices','DEPRECATION_KEYWORDS','zlib','Failures','connection','tagSupport','addWorker','parseNotebookClose','_indexProgram','getSymbols','isVisibleExternally','normalCompletionAcceptedCommand','findNodeByPosition','exception','symbolDeclToIgnore','PerformanceTracking','None','root','FailureReason','deepLearning','_startupDuration','pylance.dumpTypes','azure-mgmt-containerservice','_loopTypes','146IDFRgI','TypeStringGenerator','section','completion_accepted','PythonVersion','_generateInstalledPackagesBitArray','twine','autoImportImportAliasCount','resolveFunction','processPartialStubPackages','getConfiguration','withQuery','PYRIGHT_VERSION','applyImports','effectiveMetaclass','isCancellationRequested','.\x20Exception:\x20','Exceptions','isClassMethod','Default','getNotebookUriFromCell','_caseSensitivityDetector','azure-core','filterText','supportDocstringTemplate','is64','Type','pyright.dumpFileDebugInfo','updateJupyterSection','getUserFiles','checkDecorator','_mutator','__decorate','isFirstRun','contentFormat','getMatchingAutoImports','_findOutputSymbols','_isExportedSymbol','getText','setAllowedRoots','getDocumentationUrlForDiagnostic','newFileUri','@param','shutdown','_autoFormatStrings','UriMapper','_getLineEndingLength','_lastDiagnosticKey','dict','_convertImportFormat','_isTestClass','normalizeSlashes','indexing:\x20','VirtualDirent','pylance.extractVariable','UriEx','getGlobalMRUQueue','DidOpenNotebookDocument','hasDocumentChangeCapability','fixupGoogleDoc','Recommendations','getContainer','PylanceBackgroundAnalysisProgram','pylance.implementAllAbstractClasses','loadModelAsync','PythonFormatOnTypeProvider','CompletionListConverter','ReturnFinder','Measurements','_currentUnresolvedModules','typeHintComment','PYLANCE_EXTENSION_ID','```\x0a','call','cancellationProvider','logLevel','Sequence','visitSuite','workspaceName','_pushMultiLineToken','isLastNameOfModuleName','workspaceEdit','handleTypeHierarchySupertypes','onWorkspaceAnalysisCompletedHandler','shadowed','getStandardVariableType','addNameToCompletions','_caseSensitiveDetector','Rename','toUserVisibleString','_tokens','typeArguments','getTokenAt','onPrepare','parameters','CellDocs','```','applyPythonPath','port','getBoundMagicMethod','_addName','modelPath','_pylanceMsgHandlers','textDocument/onTypeFormatting','getCancellationTokenFromId','__rlshift__','}]\x20Profiling\x20stopped\x20but\x20there\x20is\x20no\x20place\x20to\x20save\x20data.','_sourceMapper','ExtractMethodProvider','__builtins__','line','sendRequest','handleTypeHierarchyPrepare','RENAME_FILES','_parseResults','addListener','keywordType','_builder','_appendMember','Module','identity','_handleBuiltInType','appendCodeActions','GetWorkspaceSettings','_selectionInsideComment','throwIfCancellationRequested','onTypeDefinition','pythonFile','_isValidExtractionNode','functionReturnTypes','clientVerification','InsertTextFormat','operatorToken','getSmartSelectionRange','_getDeclarationsInModuleFirst','ANALYSIS_COMPLETE','convertToFlatSymbols','DefaultPylanceSourceFileFactory','match','isClass','_originalText','YIELDS_KEYWORDS','_peakRss','_pipeName','_insertAfterNodeAndRewalk','scopeUri','lspHoverRequestTelemetry','outermostName','findMethodPosition','visitList','<sup>','changesOnly','removeArrayElements','Position','generateVerificationString','pick','onHover','Program','relativeStubs','handleDidChangeWatchedFiles','x64','parseDiagLevel','PylanceLanguageService','ensureModelLoaded',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_0x44887d;};return a1_0x1861();}

Then several blank lines that just look like the following (a log header with no content)

2024-08-09 15:07:50.028 [info]

and finally:

Error: Debug Failure. False expression: Duplicate path in cellFilePaths: untitled:/Interactive-2.interactive.py#W0sdW50aXRsZWQ%3D

untitled:/Interactive-2.interactive.py
    at _0x6c33a1 (/local/home/user/.vscode-server/extensions/ms-python.vscode-pylance-2024.8.1/dist/server.bundle.js:1:920305)
    at _0x965717 (/local/home/user/.vscode-server/extensions/ms-python.vscode-pylance-2024.8.1/dist/server.bundle.js:1:924945)
    at _0x263d8 (/local/home/user/.vscode-server/extensions/ms-python.vscode-pylance-2024.8.1/dist/server.bundle.js:1:925386)
    at /local/home/user/.vscode-server/extensions/ms-python.vscode-pylance-2024.8.1/dist/server.bundle.js:1:851177

2024-08-09 15:07:50.245 [info] [Error - 3:07:50 PM] Server process exited with code 1.
2024-08-09 15:07:50.247 [info] [Error - 3:07:50 PM] Pylance has crashed 5 times in the last 3 minutes. Pylance will not be restarted. Please check [this link](https://aka.ms/AApf7ox) for more details.

Additionally, I have tried setting "python.analysis.logLevel": "Trace" (on VS Code GUI side that is running on windows--but I don't see trace level logs in the output on the Linux host, so not sure if I did that right.

[rchiodo]

What's your version of the Python extension? This might be a dupe of this issue:
#6178

which required an update to the Python extension.

[rchiodo]

This is the commit in the Python extension that fixed the problem:
microsoft/vscode-python@3641652

[dlaflamme]

Will check this, thanks.

[dlaflamme]

OK, we updated to the following:

• ms-python.python-2024.12.3
• ms-python.vscode-pylance-2024.8.2

Can you confirm these have the fix that you mentioned above? It was unclear to me if they did.

And we're still getting an error that looks similar to the originally reported one. The small piece of additional information is that it seems to happen "after a while" and is triggered when the user has 2 interactive windows open (each connected to a different kernel), and the switches between them.

2024-08-30 10:22:13.138 [info] Error: Debug Failure. False expression: Chained file path untitled:/Interactive-3.interactive.py#pylancePrefixCell doesn't match cellFilePaths undefined
    at _0x4c4f8d (/local/home/user/.vscode-server/extensions/ms-python.vscode-pylance-2024.8.2/dist/server.bundle.js:1:1073408)
    at _0xc0b312 (/local/home/user/.vscode-server/extensions/ms-python.vscode-pylance-2024.8.2/dist/server.bundle.js:1:1077607)
    at _0x508620 (/local/home/user/.vscode-server/extensions/ms-python.vscode-pylance-2024.8.2/dist/server.bundle.js:1:1078049)
    at /local/home/user/.vscode-server/extensions/ms-python.vscode-pylance-2024.8.2/dist/server.bundle.js:1:1004156

2024-08-30 10:22:13.459 [info] [Error - 10:22:13 AM] Server process exited with code 1.
2024-08-30 10:22:13.461 [info] [Error - 10:22:13 AM] Pylance has crashed 5 times in the last 3 minutes. Pylance will not be restarted. Please check [this link](https://aka.ms/AApf7ox) for more details.

With regards to trace logging, we have "python.analysis.logLevel": "Trace", set in the user's settings.json file, but I don't see TRACE-level logging in on the in the python plugin logs so I am not sure it is being set. Additionally, when I look at ~/.vscode-server/data/Machine/settings.json that file is empty. Let me know if there is a better way to confirm the log level is being set.

[heejaechang]

looks like we have some issue with interactive window. I have another report on it - #6312 - that probably due to crash as well.

[dlaflamme]

Let me know if there is anything else I could provide to help.

[syagev]

Also got a consistent repo. Working with a Jupyter Interactive Window on a Dev Container.

Version: 1.93.1 (user setup)
Commit: 38c31bc77e0dd6ae88a4e9cc93428cc27a56ba40
Date: 2024-09-11T17:20:05.685Z
Electron: 30.4.0
ElectronBuildId: 10073054
Chromium: 124.0.6367.243
Node.js: 20.15.1
V8: 12.4.254.20-electron.0
OS: Windows_NT x64 10.0.20348

[rchiodo]

Interactive window crashes are likely this issue here: #6357. That should be fixed in our latest prerelease build.

[debonte]

@dlaflamme, are you still seeing this issue on our latest prerelease build?

[dlaflamme]

No, haven't experienced this in the latest prerelease build. Is this change in a non-prerelease build yet?

Thanks for following up.

[debonte]

Is this change in a non-prerelease build yet?

Not yet. We should be releasing a new stable build this coming week.

Closing as a duplicate of #6357.