LSP-clangd repeatedly crash after loading pytorch source code

[xushijie]

Thank you for the bug report

• I am using the latest version of lsp-mode related packages.
• I checked FAQ and Troubleshooting sections
• You may also try reproduce the issue using clean environment using the following command: M-x lsp-start-plain

Bug description

After build pytorch with option USE_CUDA=0 and USE_CUDNN=0, I load the source code into emacs and found the clangd repeatedly crash during code navigation. The screenshot is:

The stack(filtered) print in the lsp stderr is:

I[11:01:48.518] Indexed /opt/pytorch/third_party/XNNPACK/src/f32-vbinary/gen/f32-vmulc-minmax-avx512f-u32.c (1 symbols, 8787 refs, 110 files)
I[11:01:48.526] --> $/progress
I[11:01:48.526] --> $/progress
I[11:01:48.568] Indexed /opt/pytorch/third_party/XNNPACK/src/f32-qc8w-gemm/gen/f32-qc8w-gemm-3x16-minmax-avx-broadcast.c (1 symbols, 10334 refs, 109 files)
I[11:01:48.572] --> $/progress
I[11:01:48.572] --> $/progress
I[11:01:48.674] <-- textDocument/codeAction(13)
I[11:01:48.674] --> reply:textDocument/codeAction(13) 0 ms
I[11:01:48.674] <-- textDocument/documentLink(14)
I[11:01:48.675] --> reply:textDocument/documentLink(14) 1 ms
/lib/x86_64-linux-gnu/libLLVM-12.so.1(llvm::sys::PrintStackTrace(llvm::raw_ostream&, int)+0x31)[0x7fb98f1dc2a1]
/lib/x86_64-linux-gnu/libLLVM-12.so.1(llvm::sys::RunSignalHandlers()+0x22)[0x7fb98f1da3a2]
/lib/x86_64-linux-gnu/libLLVM-12.so.1(+0xd739ad)[0x7fb98f1dc9ad]
/lib/x86_64-linux-gnu/libc.so.6(+0x42520)[0x7fb98df4d520]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Expr::IgnoreImpCasts()+0x1c)[0x7fb994f28d9c]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(+0x13ba2a5)[0x7fb9956df2a5]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Sema::ActOnOpenMPSimdDirective(llvm::ArrayRef<clang::OMPClause*>, clang::Stmt*, clang::SourceLocation, clang::SourceLocation, llvm::SmallDenseMap<clang::ValueDecl const*, clang::Expr const*, 4u, llvm::DenseMapInfo<clang::ValueDecl const*>, llvm::detail::DenseMapPair<clang::ValueDecl const*, clang::Expr const*> >&)+0x1c4)[0x7fb9956ce0b4]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Sema::ActOnOpenMPExecutableDirective(llvm::omp::Directive, clang::DeclarationNameInfo const&, llvm::omp::Directive, llvm::ArrayRef<clang::OMPClause*>, clang::Stmt*, clang::SourceLocation, clang::SourceLocation)+0xc63)[0x7fb9956c68a3]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Parser::ParseOpenMPDeclarativeOrExecutableDirective(clang::Parser::ParsedStmtContext)+0xf58)[0x7fb994d14568]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*, clang::Parser::ParsedAttributesWithRange&)+0x1276)[0x7fb994d2ef06]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*)+0xcd)[0x7fb994d2db0d]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Parser::ParseCompoundStatementBody(bool)+0x650)[0x7fb994d35c70]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*, clang::Parser::ParsedAttributesWithRange&)+0x8a6)[0x7fb994d2e536]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*)+0xcd)[0x7fb994d2db0d]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Parser::ParseIfStatement(clang::SourceLocation*)+0x475)[0x7fb994d30d55]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*, clang::Parser::ParsedAttributesWithRange&)+0x37f)[0x7fb994d2e00f]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*)+0xcd)[0x7fb994d2db0d]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Parser::ParseCompoundStatementBody(bool)+0x650)[0x7fb994d35c70]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*, clang::Parser::ParsedAttributesWithRange&)+0x8a6)[0x7fb994d2e536]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*)+0xcd)[0x7fb994d2db0d]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Parser::ParseForStatement(clang::SourceLocation*)+0x19e7)[0x7fb994d33807]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*, clang::Parser::ParsedAttributesWithRange&)+0x598)[0x7fb994d2e228]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*)+0xcd)[0x7fb994d2db0d]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Parser::ParseCompoundStatementBody(bool)+0x650)[0x7fb994d35c70]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Parser::ParseLambdaExpressionAfterIntroducer(clang::LambdaIntroducer&)+0x1954)[0x7fb994ced954]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Parser::ParseLambdaExpression()+0xc5)[0x7fb994ceb015]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Parser::ParseCastExpression(clang::Parser::CastParseKind, bool, bool&, clang::Parser::TypeCastState, bool, bool*)+0x1838)[0x7fb994cd8c58]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Parser::ParseCastExpression(clang::Parser::CastParseKind, bool, clang::Parser::TypeCastState, bool, bool*)+0x2f)[0x7fb994cd50cf]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Parser::ParseAssignmentExpression(clang::Parser::TypeCastState)+0x83)[0x7fb994cd38a3]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Parser::ParseExpressionList(llvm::SmallVectorImpl<clang::Expr*>&, llvm::SmallVectorImpl<clang::SourceLocation>&, llvm::function_ref<void ()>)+0xfa)[0x7fb994ce3e6a]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Parser::ParsePostfixExpressionSuffix(clang::ActionResult<clang::Expr*, true>)+0xfde)[0x7fb994cd619e]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Parser::ParseCastExpression(clang::Parser::CastParseKind, bool, bool&, clang::Parser::TypeCastState, bool, bool*)+0xcd)[0x7fb994cd74ed]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Parser::ParseCastExpression(clang::Parser::CastParseKind, bool, clang::Parser::TypeCastState, bool, bool*)+0x2f)[0x7fb994cd50cf]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Parser::ParseAssignmentExpression(clang::Parser::TypeCastState)+0x83)[0x7fb994cd38a3]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Parser::ParseExpression(clang::Parser::TypeCastState)+0x9)[0x7fb994cd3809]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Parser::ParseExprStatement(clang::Parser::ParsedStmtContext)+0x46)[0x7fb994d2f8f6]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*, clang::Parser::ParsedAttributesWithRange&)+0xc4f)[0x7fb994d2e8df]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*)+0xcd)[0x7fb994d2db0d]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Parser::ParseCompoundStatementBody(bool)+0x650)[0x7fb994d35c70]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Parser::ParseFunctionStatementBody(clang::Decl*, clang::Parser::ParseScope&)+0xb0)[0x7fb994d36b90]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Parser::ParseFunctionDefinition(clang::ParsingDeclarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::LateParsedAttrList*)+0xb33)[0x7fb994d4fea3]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&, clang::DeclaratorContext, clang::SourceLocation*, clang::Parser::ForRangeInit*)+0x10d0)[0x7fb994caa6f0]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Parser::ParseDeclOrFunctionDefInternal(clang::Parser::ParsedAttributesWithRange&, clang::ParsingDeclSpec&, clang::AccessSpecifier)+0x34d)[0x7fb994d4f0cd]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Parser::ParseDeclarationOrFunctionDefinition(clang::Parser::ParsedAttributesWithRange&, clang::ParsingDeclSpec*, clang::AccessSpecifier)+0x190)[0x7fb994d4eac0]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Parser::ParseExternalDeclaration(clang::Parser::ParsedAttributesWithRange&, clang::ParsingDeclSpec*)+0x8e5)[0x7fb994d4dbb5]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Parser::ParseInnerNamespace(llvm::SmallVector<clang::Parser::InnerNamespaceInfo, 4u> const&, unsigned int, clang::SourceLocation&, clang::ParsedAttributes&, clang::BalancedDelimiterTracker&)+0x10b)[0x7fb994cbe92b]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Parser::ParseNamespace(clang::DeclaratorContext, clang::SourceLocation&, clang::SourceLocation)+0x1b84)[0x7fb994cbe4a4]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Parser::ParseDeclaration(clang::DeclaratorContext, clang::SourceLocation&, clang::Parser::ParsedAttributesWithRange&, clang::SourceLocation*)+0x3e0)[0x7fb994ca42f0]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Parser::ParseExternalDeclaration(clang::Parser::ParsedAttributesWithRange&, clang::ParsingDeclSpec*)+0xba)[0x7fb994d4d38a]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Parser::ParseInnerNamespace(llvm::SmallVector<clang::Parser::InnerNamespaceInfo, 4u> const&, unsigned int, clang::SourceLocation&, clang::ParsedAttributes&, clang::BalancedDelimiterTracker&)+0x10b)[0x7fb994cbe92b]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Parser::ParseNamespace(clang::DeclaratorContext, clang::SourceLocation&, clang::SourceLocation)+0x1b84)[0x7fb994cbe4a4]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Parser::ParseDeclaration(clang::DeclaratorContext, clang::SourceLocation&, clang::Parser::ParsedAttributesWithRange&, clang::SourceLocation*)+0x3e0)[0x7fb994ca42f0]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Parser::ParseExternalDeclaration(clang::Parser::ParsedAttributesWithRange&, clang::ParsingDeclSpec*)+0xba)[0x7fb994d4d38a]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Parser::ParseInnerNamespace(llvm::SmallVector<clang::Parser::InnerNamespaceInfo, 4u> const&, unsigned int, clang::SourceLocation&, clang::ParsedAttributes&, clang::BalancedDelimiterTracker&)+0x10b)[0x7fb994cbe92b]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Parser::ParseNamespace(clang::DeclaratorContext, clang::SourceLocation&, clang::SourceLocation)+0x1b84)[0x7fb994cbe4a4]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Parser::ParseDeclaration(clang::DeclaratorContext, clang::SourceLocation&, clang::Parser::ParsedAttributesWithRange&, clang::SourceLocation*)+0x3e0)[0x7fb994ca42f0]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Parser::ParseExternalDeclaration(clang::Parser::ParsedAttributesWithRange&, clang::ParsingDeclSpec*)+0xba)[0x7fb994d4d38a]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, bool)+0x514)[0x7fb994d4c324]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::ParseAST(clang::Sema&, bool, bool)+0x2fd)[0x7fb994c9374d]
/lib/x86_64-linux-gnu/libclang-cpp.so.12(clang::FrontendAction::Execute()+0x56)[0x7fb9962dd006]
/usr/bin/clangd[0x77d2d6]
/usr/bin/clangd[0x7804a5]
/usr/bin/clangd[0x78450c]
/usr/bin/clangd[0x77edd3]
/usr/bin/clangd[0x8128da]
/lib/x86_64-linux-gnu/libLLVM-12.so.1(+0xd7512f)[0x7fb98f1de12f]
/lib/x86_64-linux-gnu/libc.so.6(+0x94ac3)[0x7fb98df9fac3]
/lib/x86_64-linux-gnu/libc.so.6(+0x126850)[0x7fb98e031850]

Process clangd stderr finished

The lsp-mode version:
Status: Installed in ‘lsp-mode-20240408.57/’ (unsigned).
Version: 20240408.57
Commit: 5b01984

Steps to reproduce

Refer to the description..
the issue can be reproduced with clean environment: M-x lsp-start-plain.

Expected behavior

The lsp-clangd should not crash during code navigation, and make responses

Which Language Server did you use?

clangd for c source code.

OS

Linux

Error callstack

n/a

Anything else?

n/a

[xushijie]

I close this issue:

1. Investigation revealed the crash originated from Clangd, not the LSP client. The stack trace confirmed this.
2. The installed Clangd version was outdated (version 12.0). Upgrading to the latest version (18.x.x) resolved the problem.