llvmbot
commented
1 month ago @llvm/issue-subscribers-clangd
Author: None (FalcoGer)
I am using clangd with coc in nvim. I find that clangd crashes after a few seconds of seemingly working normally. I deleted `~/.cache/clangd/` but it didn't help.
Even when not including any headers and working on a simple file, it will crash.
This bug started to occur a few days ago, but I had not fired up nvim for c++ for a few weeks, so I don't know when it started.
To make it crash in this particular case, I opened a file `delete.cpp` and simply typed
```
int main()
{
delete nullptr;
return 0;
}
```
and added and removed characters before it crashed shortly thereafter.
**Logs**
```text
I[17:46:23.191] Ubuntu clangd version 19.0.0 (++20240722081722+d2f42c737234-1~exp1~20240722201851.302)
I[17:46:23.191] Features: linux+grpc
I[17:46:23.191] PID: 426184
I[17:46:23.191] Working directory: /home/paul/Desktop/test
I[17:46:23.191] argv[0]: clangd
I[17:46:23.191] argv[1]: --enable-config
I[17:46:23.191] argv[2]: --clang-tidy
I[17:46:23.191] argv[3]: --all-scopes-completion
I[17:46:23.191] argv[4]: --background-index
I[17:46:23.191] argv[5]: --completion-style=bundled
I[17:46:23.191] argv[6]: --function-arg-placeholders
I[17:46:23.191] argv[7]: --header-insertion=iwyu
I[17:46:23.191] argv[8]: --header-insertion-decorators
I[17:46:23.191] argv[9]: --limit-results=500
I[17:46:23.191] argv[10]: --log=verbose
V[17:46:23.191] User config file is /home/paul/.config/clangd/config.yaml
I[17:46:23.191] Starting LSP over stdin/stdout
V[17:46:23.192] <<< {"id":0,"jsonrpc":"2.0","method":"initialize","params":{"capabilities":{"general":{"markdown":{"parser":"marked","version":"7.0.5"},"positionEncodings":["utf-16"],"regularExpressions":{"engine":"ECMAScript","version":"ES2020"},"staleRequestSupport":{"cancel":true,"retryOnContentModified":["textDocument/inlayHint","textDocument/semanticTokens/full","textDocument/semanticTokens/range","textDocument/semanticTokens/full/delta"]}},"textDocument":{"callHierarchy":{"dynamicRegistration":true},"codeAction":{"codeActionLiteralSupport":{"codeActionKind":{"valueSet":["","quickfix","refactor","refactor.extract","refactor.inline","refactor.rewrite","source","source.organizeImports"]}},"dataSupport":true,"disabledSupport":true,"dynamicRegistration":true,"honorsChangeAnnotations":false,"isPreferredSupport":true,"resolveSupport":{"properties":["edit"]}},"codeLens":{"dynamicRegistration":true},"colorProvider":{"dynamicRegistration":true},"completion":{"completionItem":{"commitCharactersSupport":true,"deprecatedSupport":true,"documentationFormat":["markdown","plaintext"],"insertReplaceSupport":true,"insertTextModeSupport":{"valueSet":[1,2]},"labelDetailsSupport":true,"preselectSupport":true,"resolveSupport":{"properties":["documentation","detail","additionalTextEdits"]},"snippetSupport":true,"tagSupport":{"valueSet":[1]}},"completionItemKind":{"valueSet":[1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25]},"completionList":{"itemDefaults":["commitCharacters","editRange","insertTextFormat","insertTextMode"]},"contextSupport":true,"dynamicRegistration":true,"insertTextMode":2},"declaration":{"dynamicRegistration":true,"linkSupport":true},"definition":{"dynamicRegistration":true,"linkSupport":true},"diagnostic":{"dynamicRegistration":true,"relatedDocumentSupport":true},"documentHighlight":{"dynamicRegistration":true},"documentLink":{"dynamicRegistration":true,"tooltipSupport":true},"documentSymbol":{"dynamicRegistration":true,"hierarchicalDocumentSymbolSupport":true,"labelSupport":true,"symbolKind":{"valueSet":[1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26]},"tagSupport":{"valueSet":[1]}},"foldingRange":{"dynamicRegistration":true,"foldingRange":{"collapsedText":false},"foldingRangeKind":{"valueSet":["comment","imports","region"]},"lineFoldingOnly":true,"rangeLimit":5000},"formatting":{"dynamicRegistration":true},"hover":{"contentFormat":["markdown","plaintext"],"dynamicRegistration":true},"implementation":{"dynamicRegistration":true,"linkSupport":true},"inlayHint":{"dynamicRegistration":true,"resolveSupport":{"properties":["tooltip","textEdits","label.tooltip","label.location","label.command"]}},"inlineValue":{"dynamicRegistration":true},"linkedEditingRange":{"dynamicRegistration":true},"onTypeFormatting":{"dynamicRegistration":true},"publishDiagnostics":{"codeDescriptionSupport":true,"dataSupport":true,"relatedInformation":true,"tagSupport":{"valueSet":[1,2]},"versionSupport":true},"rangeFormatting":{"dynamicRegistration":true},"references":{"dynamicRegistration":true},"rename":{"dynamicRegistration":true,"honorsChangeAnnotations":true,"prepareSupport":true,"prepareSupportDefaultBehavior":1},"selectionRange":{"dynamicRegistration":true},"semanticTokens":{"augmentsSyntaxTokens":true,"dynamicRegistration":true,"formats":["relative"],"multilineTokenSupport":false,"overlappingTokenSupport":false,"requests":{"full":{"delta":true},"range":true},"serverCancelSupport":true,"tokenModifiers":["declaration","definition","readonly","static","deprecated","abstract","async","modification","documentation","defaultLibrary"],"tokenTypes":["namespace","type","class","enum","interface","struct","typeParameter","parameter","variable","property","enumMember","event","function","method","macro","keyword","modifier","comment","string","number","regexp","decorator","operator"]},"signatureHelp":{"contextSupport":true,"dynamicRegistration":true,"signatureInformation":{"activeParameterSupport":true,"documentationFormat":["markdown","plaintext"],"parameterInformation":{"labelOffsetSupport":true}}},"synchronization":{"didSave":true,"dynamicRegistration":true,"willSave":true,"willSaveWaitUntil":true},"typeDefinition":{"dynamicRegistration":true,"linkSupport":true},"typeHierarchy":{"dynamicRegistration":true}},"window":{"showDocument":{"support":true},"showMessage":{"messageActionItem":{"additionalPropertiesSupport":true}},"workDoneProgress":true},"workspace":{"applyEdit":true,"codeLens":{"refreshSupport":true},"configuration":true,"diagnostics":{"refreshSupport":true},"didChangeConfiguration":{"dynamicRegistration":true},"didChangeWatchedFiles":{"dynamicRegistration":true,"relativePatternSupport":true},"executeCommand":{"dynamicRegistration":true},"fileOperations":{"didCreate":true,"didDelete":true,"didRename":true,"dynamicRegistration":true,"willCreate":true,"willDelete":true,"willRename":true},"inlayHint":{"refreshSupport":true},"inlineValue":{"refreshSupport":true},"semanticTokens":{"refreshSupport":true},"symbol":{"dynamicRegistration":true,"resolveSupport":{"properties":["location.range"]},"symbolKind":{"valueSet":[1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26]},"tagSupport":{"valueSet":[1]}},"workspaceEdit":{"changeAnnotationSupport":{"groupsOnLabel":false},"documentChanges":true,"failureHandling":"undo","normalizesLineEndings":true,"resourceOperations":["create","rename","delete"]},"workspaceFolders":true}},"clientInfo":{"name":"coc.nvim","version":"0.0.82"},"initializationOptions":{},"locale":"en_US","processId":426015,"rootPath":"/home/paul/Desktop/test","rootUri":"file:///home/paul/Desktop/test","trace":"off","workspaceFolders":[{"name":"test","uri":"file:///home/paul/Desktop/test"}]}}
I[17:46:23.192] <-- initialize(0)
I[17:46:23.194] --> reply:initialize(0) 1 ms
V[17:46:23.194] >>> {"id":0,"jsonrpc":"2.0","result":{"capabilities":{"astProvider":true,"callHierarchyProvider":true,"clangdInlayHintsProvider":true,"codeActionProvider":{"codeActionKinds":["quickfix","refactor","info"]},"compilationDatabase":{"automaticReload":true},"completionProvider":{"resolveProvider":false,"triggerCharacters":[".","<",">",":","\"","/","*"]},"declarationProvider":true,"definitionProvider":true,"documentFormattingProvider":true,"documentHighlightProvider":true,"documentLinkProvider":{"resolveProvider":false},"documentOnTypeFormattingProvider":{"firstTriggerCharacter":"\n","moreTriggerCharacter":[]},"documentRangeFormattingProvider":true,"documentSymbolProvider":true,"executeCommandProvider":{"commands":["clangd.applyFix","clangd.applyRename","clangd.applyTweak"]},"foldingRangeProvider":true,"hoverProvider":true,"implementationProvider":true,"inactiveRegionsProvider":true,"inlayHintProvider":true,"memoryUsageProvider":true,"referencesProvider":true,"renameProvider":{"prepareProvider":true},"selectionRangeProvider":true,"semanticTokensProvider":{"full":{"delta":true},"legend":{"tokenModifiers":["declaration","definition","deprecated","deduced","readonly","static","abstract","virtual","dependentName","defaultLibrary","usedAsMutableReference","usedAsMutablePointer","constructorOrDestructor","userDefined","functionScope","classScope","fileScope","globalScope"],"tokenTypes":["variable","variable","parameter","function","method","function","property","variable","class","interface","enum","enumMember","type","type","unknown","namespace","typeParameter","concept","type","macro","modifier","operator","bracket","label","comment"]},"range":false},"signatureHelpProvider":{"triggerCharacters":["(",")","{","}","<",">",","]},"standardTypeHierarchyProvider":true,"textDocumentSync":{"change":2,"openClose":true,"save":true},"typeDefinitionProvider":true,"typeHierarchyProvider":true,"workspaceSymbolProvider":true},"serverInfo":{"name":"clangd","version":"Ubuntu clangd version 19.0.0 (++20240722081722+d2f42c737234-1~exp1~20240722201851.302) linux+grpc x86_64-pc-linux-gnu"}}}
V[17:46:23.196] <<< {"jsonrpc":"2.0","method":"initialized","params":{}}
I[17:46:23.196] <-- initialized
V[17:46:23.199] <<< {"jsonrpc":"2.0","method":"workspace/didChangeConfiguration","params":{"settings":{}}}
I[17:46:23.199] <-- workspace/didChangeConfiguration
V[17:46:23.200] <<< {"jsonrpc":"2.0","method":"textDocument/didOpen","params":{"textDocument":{"languageId":"cpp","text":"auto main() -> int\n{\n const int x = 45;\n delete nullptr;\n return 0;\n}\n","uri":"file:///home/paul/Desktop/test/delete.cpp","version":8}}}
I[17:46:23.200] <-- textDocument/didOpen
V[17:46:23.201] config note at /home/paul/.config/clangd/config.yaml:3:0: Parsing config fragment
V[17:46:23.202] config note at /home/paul/.config/clangd/config.yaml:1:0: Parsed 1 fragments from file
V[17:46:23.202] Config fragment: compiling /home/paul/.config/clangd/config.yaml:3 -> 0x000074B4CC01FE10 (trusted=true)
I[17:46:23.202] config warning at /home/paul/.config/clangd/config.yaml:124:6: Latency of clang-tidy check 'cert-msc24-c' is not known. It will only run if ClangTidy.FastCheckFilter is Loose or None
I[17:46:23.203] config warning at /home/paul/.config/clangd/config.yaml:127:6: Latency of clang-tidy check 'cert-msc33-c' is not known. It will only run if ClangTidy.FastCheckFilter is Loose or None
I[17:46:23.203] config warning at /home/paul/.config/clangd/config.yaml:140:6: Latency of clang-tidy check 'cppcoreguidelines-noexcept-destructor' is not known. It will only run if ClangTidy.FastCheckFilter is Loose or None
I[17:46:23.203] config warning at /home/paul/.config/clangd/config.yaml:141:6: Latency of clang-tidy check 'cppcoreguidelines-noexcept-move-operations' is not known. It will only run if ClangTidy.FastCheckFilter is Loose or None
I[17:46:23.203] config warning at /home/paul/.config/clangd/config.yaml:142:6: Latency of clang-tidy check 'cppcoreguidelines-noexcept-swap' is not known. It will only run if ClangTidy.FastCheckFilter is Loose or None
I[17:46:23.203] config warning at /home/paul/.config/clangd/config.yaml:144:6: Latency of clang-tidy check 'cppcoreguidelines-use-default-member-init' is not known. It will only run if ClangTidy.FastCheckFilter is Loose or None
I[17:46:23.203] --> textDocument/publishDiagnostics
V[17:46:23.203] >>> {"jsonrpc":"2.0","method":"textDocument/publishDiagnostics","params":{"diagnostics":[{"message":"Latency of clang-tidy check 'cert-msc24-c' is not known. It will only run if ClangTidy.FastCheckFilter is Loose or None","range":{"end":{"character":18,"line":123},"start":{"character":6,"line":123}},"relatedInformation":[],"severity":2,"source":"clangd-config"},{"message":"Latency of clang-tidy check 'cert-msc33-c' is not known. It will only run if ClangTidy.FastCheckFilter is Loose or None","range":{"end":{"character":18,"line":126},"start":{"character":6,"line":126}},"relatedInformation":[],"severity":2,"source":"clangd-config"},{"message":"Latency of clang-tidy check 'cppcoreguidelines-noexcept-destructor' is not known. It will only run if ClangTidy.FastCheckFilter is Loose or None","range":{"end":{"character":43,"line":139},"start":{"character":6,"line":139}},"relatedInformation":[],"severity":2,"source":"clangd-config"},{"message":"Latency of clang-tidy check 'cppcoreguidelines-noexcept-move-operations' is not known. It will only run if ClangTidy.FastCheckFilter is Loose or None","range":{"end":{"character":48,"line":140},"start":{"character":6,"line":140}},"relatedInformation":[],"severity":2,"source":"clangd-config"},{"message":"Latency of clang-tidy check 'cppcoreguidelines-noexcept-swap' is not known. It will only run if ClangTidy.FastCheckFilter is Loose or None","range":{"end":{"character":37,"line":141},"start":{"character":6,"line":141}},"relatedInformation":[],"severity":2,"source":"clangd-config"},{"message":"Latency of clang-tidy check 'cppcoreguidelines-use-default-member-init' is not known. It will only run if ClangTidy.FastCheckFilter is Loose or None","range":{"end":{"character":47,"line":143},"start":{"character":6,"line":143}},"relatedInformation":[],"severity":2,"source":"clangd-config"}],"uri":"file:///home/paul/.config/clangd/config.yaml"}}
I[17:46:23.203] Failed to find compilation database for /home/paul/Desktop/test/delete.cpp
I[17:46:23.203] ASTWorker building file /home/paul/Desktop/test/delete.cpp version 8 with command clangd fallback
[/home/paul/Desktop/test]
/usr/lib/llvm-19/bin/clang -std=c++23 -stdlib=libc++ -flto=full -fvirtual-function-elimination -L/usr/lib/llvm-19/lib -fexperimental-library -fopenmp -Wall -Wextra -Wpedantic -Wdouble-promotion -Wformat=2 -Wformat-nonliteral -Wformat-y2k -Wnull-dereference -Wimplicit-fallthrough -Wmissing-include-dirs -Wswitch-bool -Wcovered-switch-default -Wunused-parameter -Wuninitialized -Walloca -Wconversion -Wfloat-conversion -Wsign-conversion -Wfloat-equal -Wshadow-all -Wundef -Wunused-macros -Wcast-qual -Wcast-align -Wmissing-declarations -Wredundant-decls -Wstack-protector -fstack-protector -pedantic-errors -Werror=pedantic -Werror=char-subscripts -Werror=null-dereference -Werror=dangling-gsl -Werror=init-self -Werror=switch -Werror=implicit-fallthrough -Werror=misleading-indentation -Werror=missing-braces -Werror=sequence-point -Werror=return-type -Werror=multichar -resource-dir=/usr/lib/llvm-19/lib/clang/19 -- /home/paul/Desktop/test/delete.cpp
V[17:46:23.205] Ignored diagnostic. argument unused during compilation: '-L/usr/lib/llvm-19/lib'
V[17:46:23.206] Driver produced command: cc1 -cc1 -triple x86_64-pc-linux-gnu -fsyntax-only -flto=full -flto-unit -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name delete.cpp -mrelocation-model pic -pic-level 2 -pic-is-pie -mframe-pointer=all -fmath-errno -ffp-contract=on -fno-rounding-math -mconstructor-aliases -funwind-tables=2 -target-cpu x86-64 -tune-cpu generic -debugger-tuning=gdb -fdebug-compilation-dir=/home/paul/Desktop/test -fcoverage-compilation-dir=/home/paul/Desktop/test -resource-dir /usr/lib/llvm-19/lib/clang/19 -internal-isystem /usr/include/c++/v1 -internal-isystem /usr/lib/llvm-19/lib/clang/19/include -internal-isystem /usr/local/include -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/13/../../../../x86_64-linux-gnu/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include -Wall -Wextra -Wpedantic -Wdouble-promotion -Wformat=2 -Wformat-nonliteral -Wformat-y2k -Wnull-dereference -Wimplicit-fallthrough -Wmissing-include-dirs -Wswitch-bool -Wcovered-switch-default -Wunused-parameter -Wuninitialized -Walloca -Wconversion -Wfloat-conversion -Wsign-conversion -Wfloat-equal -Wshadow-all -Wundef -Wunused-macros -Wcast-qual -Wcast-align -Wmissing-declarations -Wredundant-decls -Wstack-protector -Werror=pedantic -Werror=char-subscripts -Werror=null-dereference -Werror=dangling-gsl -Werror=init-self -Werror=switch -Werror=implicit-fallthrough -Werror=misleading-indentation -Werror=missing-braces -Werror=sequence-point -Werror=return-type -Werror=multichar -pedantic-errors -std=c++23 -fdeprecated-macro -fexperimental-library -ferror-limit 19 -fopenmp -stack-protector 1 -fgnuc-version=4.2.1 -fno-implicit-modules -fskip-odr-check-in-gmf -fcxx-exceptions -fexceptions -no-round-trip-args -fvirtual-function-elimination -fwhole-program-vtables -fsplit-lto-unit -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -x c++ /home/paul/Desktop/test/delete.cpp
V[17:46:23.206] Building first preamble for /home/paul/Desktop/test/delete.cpp version 8
I[17:46:23.218] Built preamble of size 240532 for file /home/paul/Desktop/test/delete.cpp version 8 in 0.01 seconds
I[17:46:23.219] --> workspace/semanticTokens/refresh(0)
V[17:46:23.219] >>> {"id":0,"jsonrpc":"2.0","method":"workspace/semanticTokens/refresh","params":null}
V[17:46:23.219] indexed preamble AST for /home/paul/Desktop/test/delete.cpp version 8:
symbol slab: 0 symbols, 120 bytes
ref slab: 0 symbols, 0 refs, 128 bytes
relations slab: 0 relations, 24 bytes
V[17:46:23.220] <<< {"id":0,"jsonrpc":"2.0","result":null}
I[17:46:23.220] <-- reply(0)
I[17:46:23.223] Indexing c++23 standard library in the context of /home/paul/Desktop/test/delete.cpp
V[17:46:23.252] indexed file AST for /home/paul/Desktop/test/delete.cpp version 8:
symbol slab: 1 symbols, 4448 bytes
ref slab: 1 symbols, 1 refs, 4248 bytes
relations slab: 0 relations, 24 bytes
V[17:46:23.252] Build dynamic index for main-file symbols with estimated memory usage of 11520 bytes
I[17:46:23.252] --> textDocument/publishDiagnostics
V[17:46:23.252] >>> {"jsonrpc":"2.0","method":"textDocument/publishDiagnostics","params":{"diagnostics":[{"code":"delete_operand","message":"Cannot delete expression of type 'std::nullptr_t'","range":{"end":{"character":10,"line":3},"start":{"character":4,"line":3}},"relatedInformation":[],"severity":1,"source":"clang"},{"code":"readability-identifier-naming","codeDescription":{"href":"https://clang.llvm.org/extra/clang-tidy/checks/readability/identifier-naming.html"},"message":"Invalid case style for local constant 'x' (fix available)","range":{"end":{"character":15,"line":2},"start":{"character":14,"line":2}},"relatedInformation":[],"severity":2,"source":"clang-tidy"}],"uri":"file:///home/paul/Desktop/test/delete.cpp","version":8}}
V[17:46:24.356] <<< {"id":1,"jsonrpc":"2.0","method":"textDocument/inlayHint","params":{"range":{"end":{"character":0,"line":6},"start":{"character":0,"line":0}},"textDocument":{"uri":"file:///home/paul/Desktop/test/delete.cpp"}}}
I[17:46:24.356] <-- textDocument/inlayHint(1)
V[17:46:24.356] ASTWorker running InlayHints on version 8 of /home/paul/Desktop/test/delete.cpp
I[17:46:24.356] --> reply:textDocument/inlayHint(1) 0 ms
V[17:46:24.356] >>> {"id":1,"jsonrpc":"2.0","result":[{"label":[{"value":"// main"}],"paddingLeft":true,"paddingRight":false,"position":{"character":1,"line":5}}]}
V[17:46:25.094] <<< {"id":2,"jsonrpc":"2.0","method":"textDocument/codeAction","params":{"context":{"diagnostics":[{"code":"readability-identifier-naming","codeDescription":{"href":"https://clang.llvm.org/extra/clang-tidy/checks/readability/identifier-naming.html"},"message":"Invalid case style for local constant 'x' (fix available)","range":{"end":{"character":15,"line":2},"start":{"character":14,"line":2}},"relatedInformation":[],"severity":2,"source":"clang-tidy"}],"triggerKind":1},"range":{"end":{"character":14,"line":2},"start":{"character":14,"line":2}},"textDocument":{"uri":"file:///home/paul/Desktop/test/delete.cpp"}}}
I[17:46:25.094] <-- textDocument/codeAction(2)
V[17:46:25.095] ASTWorker running codeAction on version 8 of /home/paul/Desktop/test/delete.cpp
I[17:46:25.095] --> reply:textDocument/codeAction(2) 0 ms
V[17:46:25.095] >>> {"id":2,"jsonrpc":"2.0","result":[{"command":{"arguments":[{"newName":"X","position":{"character":14,"line":2},"textDocument":{"uri":"file:///home/paul/Desktop/test/delete.cpp"}}],"command":"clangd.applyRename","title":"change 'x' to 'X'"},"kind":"refactor","title":"change 'x' to 'X'"}]}
V[17:46:25.652] <<< {"id":3,"jsonrpc":"2.0","method":"workspace/executeCommand","params":{"arguments":[{"newName":"X","position":{"character":14,"line":2},"textDocument":{"uri":"file:///home/paul/Desktop/test/delete.cpp"}}],"command":"clangd.applyRename"}}
I[17:46:25.652] <-- workspace/executeCommand(3)
V[17:46:25.653] ASTWorker running Rename on version 8 of /home/paul/Desktop/test/delete.cpp
I[17:46:25.653] --> workspace/applyEdit(1)
V[17:46:25.653] >>> {"id":1,"jsonrpc":"2.0","method":"workspace/applyEdit","params":{"edit":{"changes":{"file:///home/paul/Desktop/test/delete.cpp":[{"newText":"X","range":{"end":{"character":15,"line":2},"start":{"character":14,"line":2}}}]}}}}
V[17:46:25.669] <<< {"id":1,"jsonrpc":"2.0","result":{"applied":true}}
I[17:46:25.669] <-- reply(1)
I[17:46:25.669] --> reply:workspace/executeCommand(3) 16 ms
V[17:46:25.669] >>> {"id":3,"jsonrpc":"2.0","result":"Rename applied."}
V[17:46:25.670] <<< {"jsonrpc":"2.0","method":"textDocument/didChange","params":{"contentChanges":[{"range":{"end":{"character":15,"line":2},"start":{"character":14,"line":2}},"rangeLength":1,"text":"X"}],"textDocument":{"uri":"file:///home/paul/Desktop/test/delete.cpp","version":9}}}
I[17:46:25.670] <-- textDocument/didChange
I[17:46:25.720] Failed to find compilation database for /home/paul/Desktop/test/delete.cpp
I[17:46:25.721] ASTWorker building file /home/paul/Desktop/test/delete.cpp version 9 with command clangd fallback
[/home/paul/Desktop/test]
/usr/lib/llvm-19/bin/clang -std=c++23 -stdlib=libc++ -flto=full -fvirtual-function-elimination -L/usr/lib/llvm-19/lib -fexperimental-library -fopenmp -Wall -Wextra -Wpedantic -Wdouble-promotion -Wformat=2 -Wformat-nonliteral -Wformat-y2k -Wnull-dereference -Wimplicit-fallthrough -Wmissing-include-dirs -Wswitch-bool -Wcovered-switch-default -Wunused-parameter -Wuninitialized -Walloca -Wconversion -Wfloat-conversion -Wsign-conversion -Wfloat-equal -Wshadow-all -Wundef -Wunused-macros -Wcast-qual -Wcast-align -Wmissing-declarations -Wredundant-decls -Wstack-protector -fstack-protector -pedantic-errors -Werror=pedantic -Werror=char-subscripts -Werror=null-dereference -Werror=dangling-gsl -Werror=init-self -Werror=switch -Werror=implicit-fallthrough -Werror=misleading-indentation -Werror=missing-braces -Werror=sequence-point -Werror=return-type -Werror=multichar -resource-dir=/usr/lib/llvm-19/lib/clang/19 -- /home/paul/Desktop/test/delete.cpp
V[17:46:25.723] Ignored diagnostic. argument unused during compilation: '-L/usr/lib/llvm-19/lib'
V[17:46:25.724] Driver produced command: cc1 -cc1 -triple x86_64-pc-linux-gnu -fsyntax-only -flto=full -flto-unit -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name delete.cpp -mrelocation-model pic -pic-level 2 -pic-is-pie -mframe-pointer=all -fmath-errno -ffp-contract=on -fno-rounding-math -mconstructor-aliases -funwind-tables=2 -target-cpu x86-64 -tune-cpu generic -debugger-tuning=gdb -fdebug-compilation-dir=/home/paul/Desktop/test -fcoverage-compilation-dir=/home/paul/Desktop/test -resource-dir /usr/lib/llvm-19/lib/clang/19 -internal-isystem /usr/include/c++/v1 -internal-isystem /usr/lib/llvm-19/lib/clang/19/include -internal-isystem /usr/local/include -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/13/../../../../x86_64-linux-gnu/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include -Wall -Wextra -Wpedantic -Wdouble-promotion -Wformat=2 -Wformat-nonliteral -Wformat-y2k -Wnull-dereference -Wimplicit-fallthrough -Wmissing-include-dirs -Wswitch-bool -Wcovered-switch-default -Wunused-parameter -Wuninitialized -Walloca -Wconversion -Wfloat-conversion -Wsign-conversion -Wfloat-equal -Wshadow-all -Wundef -Wunused-macros -Wcast-qual -Wcast-align -Wmissing-declarations -Wredundant-decls -Wstack-protector -Werror=pedantic -Werror=char-subscripts -Werror=null-dereference -Werror=dangling-gsl -Werror=init-self -Werror=switch -Werror=implicit-fallthrough -Werror=misleading-indentation -Werror=missing-braces -Werror=sequence-point -Werror=return-type -Werror=multichar -pedantic-errors -std=c++23 -fdeprecated-macro -fexperimental-library -ferror-limit 19 -fopenmp -stack-protector 1 -fgnuc-version=4.2.1 -fno-implicit-modules -fskip-odr-check-in-gmf -fcxx-exceptions -fexceptions -no-round-trip-args -fvirtual-function-elimination -fwhole-program-vtables -fsplit-lto-unit -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -x c++ /home/paul/Desktop/test/delete.cpp
V[17:46:25.725] Reusing preamble version 8 for version 9 of /home/paul/Desktop/test/delete.cpp
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace.
V[17:46:25.867] <<< {"id":4,"jsonrpc":"2.0","method":"textDocument/documentLink","params":{"textDocument":{"uri":"file:///home/paul/Desktop/test/delete.cpp"}}}
I[17:46:25.868] <-- textDocument/documentLink(4)
V[17:46:25.975] <<< {"id":5,"jsonrpc":"2.0","method":"textDocument/inlayHint","params":{"range":{"end":{"character":0,"line":6},"start":{"character":0,"line":0}},"textDocument":{"uri":"file:///home/paul/Desktop/test/delete.cpp"}}}
I[17:46:25.975] <-- textDocument/inlayHint(5)
V[17:46:26.111] <<< {"id":6,"jsonrpc":"2.0","method":"textDocument/documentHighlight","params":{"position":{"character":14,"line":2},"textDocument":{"uri":"file:///home/paul/Desktop/test/delete.cpp"}}}
I[17:46:26.111] <-- textDocument/documentHighlight(6)
#0 0x000074b4f58bb06f llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/usr/lib/llvm-19/bin/../lib/libLLVM.so.19.0+0xebb06f)
#1 0x000074b4f58b8d79 llvm::sys::RunSignalHandlers() (/usr/lib/llvm-19/bin/../lib/libLLVM.so.19.0+0xeb8d79)
#2 0x000074b4f58bb7c0 (/usr/lib/llvm-19/bin/../lib/libLLVM.so.19.0+0xebb7c0)
#3 0x000074b4f3845320 (/lib/x86_64-linux-gnu/libc.so.6+0x45320)
#4 0x000074b4f5858a58 llvm::StringMapImpl::LookupBucketFor(llvm::StringRef, unsigned int) (/usr/lib/llvm-19/bin/../lib/libLLVM.so.19.0+0xe58a58)
#5 0x00005e81547995e6 (/usr/lib/llvm-19/bin/clangd+0x66c5e6)
#6 0x00005e8154797aa8 (/usr/lib/llvm-19/bin/clangd+0x66aaa8)
#7 0x00005e8154db834f (/usr/lib/llvm-19/bin/clangd+0xc8b34f)
#8 0x00005e8154519016 (/usr/lib/llvm-19/bin/clangd+0x3ec016)
#9 0x00005e81545bb029 (/usr/lib/llvm-19/bin/clangd+0x48e029)
#10 0x00005e81545be41d (/usr/lib/llvm-19/bin/clangd+0x49141d)
#11 0x00005e81545b7230 (/usr/lib/llvm-19/bin/clangd+0x48a230)
#12 0x00005e81545b6d8b (/usr/lib/llvm-19/bin/clangd+0x489d8b)
#13 0x00005e815471fee1 (/usr/lib/llvm-19/bin/clangd+0x5f2ee1)
#14 0x000074b4f389ca94 start_thread ./nptl/pthread_create.c:447:8
#15 0x000074b4f3929c3c clone3 ./misc/../sysdeps/unix/sysv/linux/x86_64/clone3.S:80:0
Signalled during AST worker action: Update
Filename: delete.cpp
Directory: /home/paul/Desktop/test
Command Line: /usr/lib/llvm-19/bin/clang -std=c++23 -stdlib=libc++ -flto=full -fvirtual-function-elimination -L/usr/lib/llvm-19/lib -fexperimental-library -fopenmp -Wall -Wextra -Wpedantic -Wdouble-promotion -Wformat=2 -Wformat-nonliteral -Wformat-y2k -Wnull-dereference -Wimplicit-fallthrough -Wmissing-include-dirs -Wswitch-bool -Wcovered-switch-default -Wunused-parameter -Wuninitialized -Walloca -Wconversion -Wfloat-conversion -Wsign-conversion -Wfloat-equal -Wshadow-all -Wundef -Wunused-macros -Wcast-qual -Wcast-align -Wmissing-declarations -Wredundant-decls -Wstack-protector -fstack-protector -pedantic-errors -Werror=pedantic -Werror=char-subscripts -Werror=null-dereference -Werror=dangling-gsl -Werror=init-self -Werror=switch -Werror=implicit-fallthrough -Werror=misleading-indentation -Werror=missing-braces -Werror=sequence-point -Werror=return-type -Werror=multichar -resource-dir=/usr/lib/llvm-19/lib/clang/19 -- /home/paul/Desktop/test/delete.cpp
Version: 9
Segmentation fault (core dumped)
```
**System information**
Output of `clangd --version`:
```text
Ubuntu clangd version 19.0.0 (++20240722081722+d2f42c737234-1~exp1~20240722201851.302)
Features: linux+grpc
Platform: x86_64-pc-linux-gnu
```
Editor/LSP plugin:
neovim with coc.nvim.
coc configuration to generate the above log was
```json
"languageserver": {
"clangd": {
"command": "sh",
"filetypes": [
"c",
"cpp"
],
"rootPatterns": [
"compile_flags.txt",
"compile_commands.json"
],
"args": [
"-c",
"clangd --enable-config --clang-tidy --all-scopes-completion --background-index --completion-style=bundled --function-arg-placeholders --header-insertion=iwyu --header-insertion-decorators --limit-results=500 --log=verbose 2>/tmp/clangd.log"
]
},
```
but also crashes when using a more normal variant
```json
"languageserver": {
"clangd": {
"command": "clangd",
"filetypes": [
"c",
"cpp"
],
"rootPatterns": [
"compile_flags.txt",
"compile_commands.json"
],
"args": [
"--enable-config",
"--clang-tidy",
"--all-scopes-completion",
"--background-index",
"--completion-style=bundled",
"--function-arg-placeholders",
"--header-insertion=iwyu",
"--header-insertion-decorators",
"--limit-results=500"
]
},
```
My clangd configuration file `~/.config/clangd/config.yaml` is this
```yaml
# https://clangd.llvm.org/config.html
CompileFlags:
Add: [
-std=c++23,
-stdlib=libc++,
-flto=full,
-fvirtual-function-elimination,
-L/usr/lib/llvm-19/lib,
-fexperimental-library,
-fopenmp,
-Wall,
-Wextra,
-Wpedantic,
-Wdouble-promotion,
-Wformat=2,
-Wformat-nonliteral,
-Wformat-y2k,
-Wnull-dereference,
-Wimplicit-fallthrough,
-Wmissing-include-dirs,
#-Wswitch-default,
#-Wswitch-enum,
-Wswitch-bool,
-Wcovered-switch-default,
-Wunused-parameter,
-Wuninitialized,
-Walloca,
-Wconversion,
-Wfloat-conversion,
-Wsign-conversion,
-Wfloat-equal,
-Wshadow-all,
-Wundef,
-Wunused-macros,
-Wcast-qual,
-Wcast-align,
-Wmissing-declarations,
-Wredundant-decls,
-Wstack-protector,
-fstack-protector,
-pedantic-errors,
-Werror=pedantic,
-Werror=char-subscripts,
-Werror=null-dereference,
-Werror=dangling-gsl,
-Werror=init-self,
-Werror=switch,
#-Werror=switch-enum,
-Werror=implicit-fallthrough,
-Werror=misleading-indentation,
-Werror=missing-braces,
-Werror=sequence-point,
-Werror=return-type,
-Werror=multichar
]
Index:
StandardLibrary: Yes
Background: Build
Completion:
AllScopes: true
Hover:
ShowAKA: true
InlayHints:
Designators: true
Enabled: true
ParameterNames: true
DeducedTypes: true
BlockEnd: true
# https://clang.llvm.org/extra/clang-tidy/#suppressing-undesired-diagnostics
Diagnostics:
UnusedIncludes: Strict
ClangTidy:
FastCheckFilter: None
Add: [
abseil-*,
bugprone*,
boost-*,
concurrency-*,
cppcoreguidelines-*,
modernize-*,
performance-*,
portability-*,
readability-*,
cert-*,
clang-analyzer-*,
google-*,
hicpp-*,
linuxkernel-*,
llvm-*,
misc-*,
openmp-*,
mpi-*
]
Remove: [
readability-avoid-const-params-in-decls, # const in parameter in function declarations is useful for header files.
misc-unused-parameters, # caught by -Wunused-parameter
cppcoreguidelines-avoid-do-while, # annoying, do-while might be useful.
google-objc-*, # not doing objc
# bugprone-easily-swappable-parameters, # annoying. setPos(int x, int y) is flagged
# keep it in, use c++ random number generation facilities.
# cert-msc50-cpp, # allow the use of std::rand()
google-readability-todo, # todos don't need a username or bug number in my code
portability-restrict-system-includes, # disallows the use of headers specific to one OS
fuchsia-*, # disallows many features that are standard in c++ (operator overloading, default arguments)
cert-dcl03-c, # alias for misc-static-assert
cert-dcl16-c, # alias for readability-uppercase-literal-suffix
cert-dcl37-c, # alias for bugprone-reserved-identifier
cert-dcl51-cpp, # alias for bugprone-reserved-identifier
cert-dcl54-cpp, # alias for misc-new-delete-overloads
cert-dcl59-cpp, # alias for google-build-namespaces
cert-err09-cpp, # alias for misc-throw-by-value-catch-by-reference
cert-err61-cpp, # alias for misc-throw-by-value-catch-by-reference
cert-exp42-c, # alias for bugprone-suspicious-memory-comparison
cert-fio38-c, # alias for misc-non-copyable-objects
cert-flp37-c, # alias for bugprone-suspicious-memory-comparison
cert-msc24-c, # alias for bugprone-unsafe-functions
cert-msc30-c, # alias for cert-msc50-cpp
cert-msc32-c, # alias for cert-msc51-cpp
cert-msc33-c, # alias for bugprone-unsafe-functions
cert-msc54-cpp, # alias for bugprone-signal-handler
cert-oop11-cpp, # alias for performance-move-constructor-init
cert-oop54-cpp, # alias for bugprone-unhandled-self-assignment
cert-pos44-c, # alias for bugprone-bad-signal-to-kill-thread
cert-pos47-c, # alias for concurrency-thread-canceltype-asynchronous
cert-sig30-c, # alias for bugprone-signal-handler
cert-str34-c, # alias for bugprone-signed-char-misuse
bugprone-narrowing-conversions, # alias for cppcoreguidelines-narrowing-conversions
cppcoreguidelines-avoid-c-arrays, # alias for modernize-avoid-c-arrays
cppcoreguidelines-avoid-magic-numbers, # alias for readability-magic-numbers
cppcoreguidelines-c-copy-assignment-signature, # alias for misc-unconventional-assign-operator
cppcoreguidelines-explicit-virtual-functions, # alias for modernize-use-override
cppcoreguidelines-noexcept-destructor, # alias for performance-noexcept-destructor
cppcoreguidelines-noexcept-move-operations, # alias for performance-noexcept-move-constructor
cppcoreguidelines-noexcept-swap, # alias for performance-noexcept-swap
cppcoreguidelines-non-private-member-variables-in-classes, # alias for misc-non-private-member-variables-in-classes
cppcoreguidelines-use-default-member-init, # alias for modernize-use-default-member-init
google-readability-braces-around-statements, # alias for readability-braces-around-statements
google-readability-function-size, # alias for readability-function-size
google-readability-namespace-comments, # alias for llvm-namespace-comment
hicpp-avoid-c-arrays, # alias for modernize-avoid-c-arrays
hicpp-avoid-goto, # alias for cppcoreguidelines-avoid-goto
hicpp-braces-around-statements, # alias for readability-braces-around-statements
hicpp-deprecated-headers, # alias for modernize-deprecated-headers
hicpp-explicit-conversions, # alias for google-explicit-constructor
hicpp-function-size, # alias for readability-function-size
hicpp-invalid-access-moved, # alias for bugprone-use-after-move
hicpp-member-init, # alias for cppcoreguidelines-pro-type-member-init
hicpp-move-const-arg, # alias for performance-move-const-arg
hicpp-named-parameter, # alias for readability-named-parameter
hicpp-new-delete-operators, # alias for misc-new-delete-overloads
hicpp-no-array-decay, # alias for cppcoreguidelines-pro-bounds-array-to-pointer-decay
hicpp-no-malloc, # alias for cppcoreguidelines-no-malloc
hicpp-noexcept-move, # alias for performance-noexcept-move-constructor
hicpp-special-member-functions, # alias for cppcoreguidelines-special-member-functions
hicpp-static-assert, # alias for misc-static-assert
hicpp-undelegated-constructor, # alias for bugprone-undelegated-constructor
hicpp-uppercase-literal-suffix, # alias for readability-uppercase-literal-suffix
hicpp-use-auto, # alias for modernize-use-auto
hicpp-use-emplace, # alias for modernize-use-emplace
hicpp-use-equals-default, # alias for modernize-use-equals-default
hicpp-use-equals-delete, # alias for modernize-use-equals-delete
hicpp-use-noexcept, # alias for modernize-use-noexcept
hicpp-use-nullptr, # alias for modernize-use-nullptr
hicpp-use-override, # alias for modernize-use-override
hicpp-vararg, # alias for cppcoreguidelines-pro-type-vararg
llvm-else-after-return, # alias for readability-else-after-return
llvm-qualified-auto # alias for readability-qualified-auto
]
CheckOptions:
modernize-use-auto.MinTypeNameLength: 10
modernize-use-auto.RemoveStars: 0
hicpp-multiway-paths-covered.WarnOnMissingElse: true
hicpp-signed-bitwise.IgnorePositiveIntegerLiterals: true
llvm-namespace-comment.ShortNamespaceLines: 10
misc-non-private-member-variables-in-classes.IgnorePublicMemberVariables: true
misc-non-private-member-variables-in-classes.IgnoreClassesWithAllMemberVariablesBeingPublic: false
portability-simd-intrinsics.Suggest: true
misc-const-correctness.AnalyzeValues: true
misc-const-correctness.AnalyzeReferences: true
misc-const-correctness.WarnPointersAsValues: true
misc-const-correctness.TransformValues: true
misc-const-correctness.TransformReferences: true
misc-const-correctness.TransformPointersAsValues: true
readability-redundant-inline-specifier.StrictMode: true
readability-identifier-length.MinimumVariableNameLength: 0
readability-identifier-length.IgnoredVariableNames: "^([XYZxyzit]|id|it)$"
readability-identifier-length.MinimumLoopCounterNameLength: 3
readability-identifier-length.IgnoredLoopCounterNames: "^([ijkxyz_]|idx|it)$"
readability-identifier-length.MinimumExceptionNameLength: 2
readability-identifier-length.IgnoredExceptionVariableNames: "^(e|ex)$"
readability-identifier-length.MinimumParameterNameLength: 3
readability-identifier-length.IgnoredParameterNames: "^([XYZxyzit]|id)$"
readability-identifier-naming.AbstractClassCase: CamelCase
readability-identifier-naming.ClassCase: CamelCase
readability-identifier-naming.ClassConstantCase: UPPER_CASE
readability-identifier-naming.ClassMemberCase: camelBack
readability-identifier-naming.ClassMethodCase: CamelCase
readability-identifier-naming.ConstantCase: UPPER_CASE
readability-identifier-naming.ConstantMemberCase: UPPER_CASE
readability-identifier-naming.ConstantParameterCase: UPPER_CASE
readability-identifier-naming.ConstantPointerParameterCase: camelBack
readability-identifier-naming.ConstantPointerParameterPrefix: "ptr_"
readability-identifier-naming.ConstexprFunctionCase: camelBack
readability-identifier-naming.ConstexprMethodCase: camelBack
readability-identifier-naming.ConstexprVariableCase: UPPER_CASE
readability-identifier-naming.EnumCase: CamelCase
readability-identifier-naming.EnumPrefix: "E"
readability-identifier-naming.EnumConstantCase: UPPER_CASE
readability-identifier-naming.FunctionCase: camelBack
readability-identifier-naming.GlobalConstantCase: UPPER_CASE
readability-identifier-naming.GlobalConstantPointerCase: UPPER_CASE
readability-identifier-naming.GlobalConstantPointerPrefix: "gptr_"
readability-identifier-naming.GlobalFunctionCase: camelBack
readability-identifier-naming.GlobalPointerCase: camelBack
readability-identifier-naming.GlobalPointerPrefix: "gptr_"
readability-identifier-naming.GlobalVariableCase: camelBack
readability-identifier-naming.GlobalVariablePrefix: "g_"
readability-identifier-naming.InlineNamespaceCase: CamelCase
readability-identifier-naming.LocalConstantCase: UPPER_CASE
readability-identifier-naming.LocalConstantPointerCase: camelBack
readability-identifier-naming.LocalConstantPointerPrefix: "ptr_"
readability-identifier-naming.LocalPointerCase: camelBack
readability-identifier-naming.LocalPointerPrefix: "ptr_"
readability-identifier-naming.LocalVariableCase: camelBack
readability-identifier-naming.MacroDefinitionCase: UPPER_CASE
readability-identifier-naming.MemberCase: camelBack
readability-identifier-naming.MethodCase: CamelCase
readability-identifier-naming.NamespaceCase: CamelCase
readability-identifier-naming.ParameterCase: camelBack
readability-identifier-naming.ParameterPackCase: camelBack
readability-identifier-naming.PointerParameterCase: camelBack
readability-identifier-naming.PointerParameterPrefix: "ptr_"
readability-identifier-naming.PrivateMemberCase: camelBack
readability-identifier-naming.PrivateMemberPrefix: "m_"
readability-identifier-naming.PrivateMethodCase: camelBack
readability-identifier-naming.ProtectedMemberCase: camelBack
readability-identifier-naming.ProtectedMemberPrefix: "m_"
readability-identifier-naming.ProtectedMethodCase: camelBack
readability-identifier-naming.PublicMemberCase: camelBack
readability-identifier-naming.PublicMemberPrefix: "m_"
readability-identifier-naming.PublicMethodCase: camelBack
readability-identifier-naming.ScopedEnumConstantCase: UPPER_CASE
readability-identifier-naming.StaticConstantCase: UPPER_CASE
readability-identifier-naming.StaticVariableCase: camelBack
readability-identifier-naming.StructCase: CamelCase
readability-identifier-naming.TemplateParameterCase: CamelCase
readability-identifier-naming.TypeAliasCase: CamelCase
readability-identifier-naming.TypedefCase: CamelCase
readability-identifier-naming.TypeTemplateParameterCase: CamelCase
readability-identifier-naming.UnionCase: CamelCase
readability-identifier-naming.ValueTemplateParameterCase: camelBack
readability-identifier-naming.VariableCase: camelBack
readability-identifier-naming.VirtualMethodCase: camelBack
```
Operating system:
Ubuntu Mate 24.04 (noble), x86_64
```text
Linux paul-laptop.lan 6.8.0-38-generic #38-Ubuntu SMP PREEMPT_DYNAMIC Fri Jun 7 15:25:01 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux
```
FalcoGer
HighCommander4
I am using clangd with coc in nvim. I find that clangd crashes after a few seconds of seemingly working normally. I deleted
~/.cache/clangd/but it didn't help.Even when not including any headers and working on a simple file, it will crash.
This bug started to occur a few days ago, but I had not fired up nvim for c++ for a few weeks, so I don't know when it started.
To make it crash in this particular case, I opened a file
delete.cppand simply typedand added and removed characters before it crashed shortly thereafter.
Logs
System information
Output of
clangd --version:Editor/LSP plugin:
neovim with coc.nvim.
coc configuration to generate the above log was
but also crashes when using a more normal variant
My clangd configuration file
~/.config/clangd/config.yamlis thisOperating system:
Ubuntu Mate 24.04 (noble), x86_64