Open jprotze opened 3 years ago
The segfault occurs randomly during compilation. When executing a benchmark with 177 kernels, the error occurs 1-2 times on my system.
release-12.0.1 source is compiled on ubuntu 18.04 using gcc-10 and these flags:
cmake -G Ninja -DCMAKE_BUILD_TYPE=Release -DLLVM_ENABLE_PROJECTS='clang;clang-tools-extra;compiler-rt;openmp'
I attach preprocessed source and script, although I cannot reproduce the segfault with the script.
clang-12: error: unable to execute command: Segmentation fault (core dumped) clang-12: error: clang frontend command failed due to signal (use -v to see invocation) clang version 12.0.1 Target: x86_64-unknown-linux-gnu Thread model: posix InstalledDir: /usr/bin clang-12: note: diagnostic msg:
Likely a duplicate of bug llvm/llvm-project#49955 .
Extended Description
The segfault occurs randomly during compilation. When executing a benchmark with 177 kernels, the error occurs 1-2 times on my system.
release-12.0.1 source is compiled on ubuntu 18.04 using gcc-10 and these flags:
cmake -G Ninja -DCMAKE_BUILD_TYPE=Release -DLLVM_ENABLE_PROJECTS='clang;clang-tools-extra;compiler-rt;openmp'
I attach preprocessed source and script, although I cannot reproduce the segfault with the script.
0 0x0000558590b8cc5d llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/llvm-12.0.1/install_tree/bin/clang-12+0x3010c5d)
1 0x0000558590b8a964 llvm::sys::RunSignalHandlers() (/llvm-12.0.1/install_tree/bin/clang-12+0x300e964)
2 0x0000558590b8aadb SignalHandler(int) (/llvm-12.0.1/install_tree/bin/clang-12+0x300eadb)
3 0x00001481b0b18980 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x12980)
4 0x0000558591746400 llvm::DIE::getUnitDie() const (/llvm-12.0.1/install_tree/bin/clang-12+0x3bca400)
5 0x000055859175168c llvm::DwarfDebug::finishEntityDefinitions() (/llvm-12.0.1/install_tree/bin/clang-12+0x3bd568c)
6 0x00005585917699d5 llvm::DwarfDebug::finalizeModuleInfo() (/llvm-12.0.1/install_tree/bin/clang-12+0x3bed9d5)
7 0x000055859176cb18 llvm::DwarfDebug::endModule() (/llvm-12.0.1/install_tree/bin/clang-12+0x3bf0b18)
8 0x0000558591738b89 llvm::AsmPrinter::doFinalization(llvm::Module&) (/llvm-12.0.1/install_tree/bin/clang-12+0x3bbcb89)
9 0x000055859036848d llvm::FPPassManager::doFinalization(llvm::Module&) (.localalias) (/llvm-12.0.1/install_tree/bin/clang-12+0x27ec48d)
10 0x00005585903742b0 llvm::legacy::PassManagerImpl::run(llvm::Module&) (/llvm-12.0.1/install_tree/bin/clang-12+0x27f82b0)
11 0x0000558590e46e9f clang::EmitBackendOutput(clang::DiagnosticsEngine&, clang::HeaderSearchOptions const&, clang::CodeGenOptions const&, clang::TargetOptions const&, clang::LangOptions const&, llvm::DataLayout const&, llvm::Module*, clang::BackendAction, std::unique_ptr<llvm::raw_pwrite_stream, std::default_delete >) (/llvm-12.0.1/install_tree/bin/clang-12+0x32cae9f)
12 0x0000558591ad27e4 clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&) (/llvm-12.0.1/install_tree/bin/clang-12+0x3f567e4)
13 0x00005585924bbde9 clang::ParseAST(clang::Sema&, bool, bool) (/llvm-12.0.1/install_tree/bin/clang-12+0x493fde9)
14 0x0000558591479e29 clang::FrontendAction::Execute() (/llvm-12.0.1/install_tree/bin/clang-12+0x38fde29)
15 0x000055859141a68b clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/llvm-12.0.1/install_tree/bin/clang-12+0x389e68b)
16 0x000055859152b8b8 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/llvm-12.0.1/install_tree/bin/clang-12+0x39af8b8)
17 0x000055858ea1eb04 cc1_main(llvm::ArrayRef<char const>, char const, void*) (/llvm-12.0.1/install_tree/bin/clang-12+0xea2b04)
18 0x000055858ea1c257 ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&) (/llvm-12.0.1/install_tree/bin/clang-12+0xea0257)
19 0x000055858e96a24c main (/llvm-12.0.1/install_tree/bin/clang-12+0xdee24c)
20 0x00001481afb6fbf7 __libc_start_main /build/glibc-S9d2JN/glibc-2.27/csu/../csu/libc-start.c:344:0
21 0x000055858ea1bbfa _start (/llvm-12.0.1/install_tree/bin/clang-12+0xe9fbfa)
clang-12: error: unable to execute command: Segmentation fault (core dumped) clang-12: error: clang frontend command failed due to signal (use -v to see invocation) clang version 12.0.1 Target: x86_64-unknown-linux-gnu Thread model: posix InstalledDir: /usr/bin clang-12: note: diagnostic msg: