Your message dated Mon, 3 Aug 2015 15:27:44 +0200 with message-id <[email protected]> and subject line Re: Bug#794475: clang-3.6: clang segfaults on invalid use of non-static data member has caused the Debian Bug report #794475, regarding clang-3.6: clang segfaults on invalid use of non-static data member to be marked as done.
This means that you claim that the problem has been dealt with. If this is not the case it is now your responsibility to reopen the Bug report if necessary, and/or fix the problem forthwith. (NB: If you are a system administrator and have no idea what this message is talking about, this may indicate a serious mail system misconfiguration somewhere. Please contact [email protected] immediately.) -- 794475: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=794475 Debian Bug Tracking System Contact [email protected] with problems
--- Begin Message ---Package: clang-3.6 Version: 1:3.6.2~+rc1-1~exp1 Severity: normal Dear Maintainer, I managed to make clang-3.6 segfault on a piece of code that should not compile, as it comprises the invalid use of a non-static data member. This also applies to clang-3.5. The crash is 100% reproducible and also affects clang-3.5 (1:3.5.2-1) but appears to be fixed in clang-3.7 (1:3.7~svn239806-1+b1). It affects clang-3.6 both from unstable (1:3.6.1-1) and experimental (1:3.6.2~+rc1-1~exp1). Unfortunately I have not been able to isolate what causes the crash or to produce a minimal example, and I can't share the original code (yet -- it's unpublished research). crash backtrace: OMPI_CXX=clang++-3.6 mpic++ -std=c++11 -Wall -Wextra -Werror -I/opt/intel/composer_xe_2015.2.164/mkl/include -Ofast -g -flto -DNDEBUG -o mostfreq mostfreq.cpp /usr/lib/x86_64-linux-gnu/libgsl.a libboost_mpi.a libboost_serialization.a /opt/intel/composer_xe_2015.2.164/mkl/lib/intel64/libmkl_intel_lp64.a /opt/intel/composer_xe_2015.2.164/mkl/lib/intel64/libmkl_core.a /opt/intel/composer_xe_2015.2.164/mkl/lib/intel64/libmkl_sequential.a -ldl In file included from mostfreq.cpp:13: ../worker_ec.h:178:48: error: invalid use of non-static data member 'k' std::vector<element> select_dht(int rank = k) { ^ ../worker_ec.h:178:41: error: unused parameter 'rank' [-Werror,-Wunused-parameter] std::vector<element> select_dht(int rank = k) { ^ #0 0x7f991806d3a2 llvm::sys::PrintStackTrace(_IO_FILE*) (/usr/lib/x86_64-linux-gnu/libLLVM-3.6.so.1+0xf943a2) #1 0x7f991806baf1 (/usr/lib/x86_64-linux-gnu/libLLVM-3.6.so.1+0xf92af1) #2 0x7f9916cb08d0 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0xf8d0) #3 0xb62721 (/usr/lib/llvm-3.6/bin/clang+0xb62721) #4 0xb62b35 (/usr/lib/llvm-3.6/bin/clang+0xb62b35) #5 0xb630f2 clang::Sema::CheckCompletedExpr(clang::Expr*, clang::SourceLocation, bool) (/usr/lib/llvm-3.6/bin/clang+0xb630f2) #6 0xc96118 clang::Sema::BuildCXXDefaultArgExpr(clang::SourceLocation, clang::FunctionDecl*, clang::ParmVarDecl*) (/usr/lib/llvm-3.6/bin/clang+0xc96118) #7 0xc9646c clang::Sema::GatherArgumentsForCall(clang::SourceLocation, clang::FunctionDecl*, clang::FunctionProtoType const*, unsigned int, llvm::ArrayRef<clang::Expr*>, llvm::SmallVectorImpl<clang::Expr*>&, clang::Sema::VariadicCallType, bool, bool) (/usr/lib/llvm-3.6/bin/clang+0xc9646c) #8 0xc97302 clang::Sema::ConvertArgumentsForCall(clang::CallExpr*, clang::Expr*, clang::FunctionDecl*, clang::FunctionProtoType const*, llvm::ArrayRef<clang::Expr*>, clang::SourceLocation, bool) (/usr/lib/llvm-3.6/bin/clang+0xc97302) #9 0xd852d9 clang::Sema::BuildCallToMemberFunction(clang::Scope*, clang::Expr*, clang::SourceLocation, llvm::MutableArrayRef<clang::Expr*>, clang::SourceLocation) (/usr/lib/llvm-3.6/bin/clang+0xd852d9) #10 0xc98c79 clang::Sema::ActOnCallExpr(clang::Scope*, clang::Expr*, clang::SourceLocation, llvm::MutableArrayRef<clang::Expr*>, clang::SourceLocation, clang::Expr*, bool) (/usr/lib/llvm-3.6/bin/clang+0xc98c79) #11 0xe36a18 (/usr/lib/llvm-3.6/bin/clang+0xe36a18) #12 0xe32645 (/usr/lib/llvm-3.6/bin/clang+0xe32645) #13 0xe335d1 (/usr/lib/llvm-3.6/bin/clang+0xe335d1) #14 0xe33801 (/usr/lib/llvm-3.6/bin/clang+0xe33801) #15 0xe3fcc5 (/usr/lib/llvm-3.6/bin/clang+0xe3fcc5) #16 0xe40c63 (/usr/lib/llvm-3.6/bin/clang+0xe40c63) #17 0xe40d7b (/usr/lib/llvm-3.6/bin/clang+0xe40d7b) #18 0xe3ff35 (/usr/lib/llvm-3.6/bin/clang+0xe3ff35) #19 0xe42ddf clang::Sema::SubstStmt(clang::Stmt*, clang::MultiLevelTemplateArgumentList const&) (/usr/lib/llvm-3.6/bin/clang+0xe42ddf) #20 0xe65280 clang::Sema::InstantiateFunctionDefinition(clang::SourceLocation, clang::FunctionDecl*, bool, bool) (/usr/lib/llvm-3.6/bin/clang+0xe65280) #21 0xe63efb clang::Sema::PerformPendingInstantiations(bool) (/usr/lib/llvm-3.6/bin/clang+0xe63efb) #22 0xe65365 clang::Sema::InstantiateFunctionDefinition(clang::SourceLocation, clang::FunctionDecl*, bool, bool) (/usr/lib/llvm-3.6/bin/clang+0xe65365) #23 0xe63efb clang::Sema::PerformPendingInstantiations(bool) (/usr/lib/llvm-3.6/bin/clang+0xe63efb) #24 0xb157df clang::Sema::ActOnEndOfTranslationUnit() (/usr/lib/llvm-3.6/bin/clang+0xb157df) #25 0xa68fa0 clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&) (/usr/lib/llvm-3.6/bin/clang+0xa68fa0) #26 0xa5ecc3 clang::ParseAST(clang::Sema&, bool, bool) (/usr/lib/llvm-3.6/bin/clang+0xa5ecc3) #27 0x6efdc6 clang::FrontendAction::Execute() (/usr/lib/llvm-3.6/bin/clang+0x6efdc6) #28 0x6cc2f9 clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/usr/lib/llvm-3.6/bin/clang+0x6cc2f9) #29 0x6b4c43 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/usr/lib/llvm-3.6/bin/clang+0x6b4c43) #30 0x6af278 cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/usr/lib/llvm-3.6/bin/clang+0x6af278) #31 0x6ae8a3 main (/usr/lib/llvm-3.6/bin/clang+0x6ae8a3) #32 0x7f9915884b45 __libc_start_main /tmp/buildd/glibc-2.19/csu/libc-start.c:321:0 #33 0x6ae912 _start (/usr/lib/llvm-3.6/bin/clang+0x6ae912) Stack dump: 0. Program arguments: /usr/lib/llvm-3.6/bin/clang -cc1 -triple x86_64-pc-linux-gnu -emit-llvm-bc -disable-free -disable-llvm-verifier -main-file-name mostfreq.cpp -mrelocation-model static -mthread-model posix -menable-no-infs -menable-no-nans -menable-unsafe-fp-math -ffp-contract=fast -ffast-math -masm-verbose -mconstructor-aliases -munwind-tables -fuse-init-array -target-cpu x86-64 -target-linker-version 2.25 -momit-leaf-frame-pointer -g -dwarf-column-info -resource-dir /usr/lib/llvm-3.6/bin/../lib/clang/3.6.2 -D NDEBUG -I /opt/intel/composer_xe_2015.2.164/mkl/include -I /usr/local/include -internal-isystem /usr/bin/../lib/gcc/x86_64-linux-gnu/5.1.1/../../../../include/c++/5.1.1 -internal-isystem /usr/bin/../lib/gcc/x86_64-linux-gnu/5.1.1/../../../../include/x86_64-linux-gnu/c++/5.1.1 -internal-isystem /usr/bin/../lib/gcc/x86_64-linux-gnu/5.1.1/../../../../include/x86_64-linux-gnu/c++/5.1.1 -internal-isystem /usr/bin/../lib/gcc/x86_64-linux-gnu/5.1.1/../../../../include/c++/5.1.1/b ackward -internal-isystem /usr/local/include -internal-isystem /usr/lib/llvm-3.6/bin/../lib/clang/3.6.2/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include -Ofast -Wall -Wextra -Werror -std=c++11 -fdeprecated-macro -fdebug-compilation-dir /home/lorenz/coding/topk/pac -ferror-limit 19 -fmessage-length 118 -pthread -mstackrealign -fobjc-runtime=gcc -fcxx-exceptions -fexceptions -fdiagnostics-show-option -fcolor-diagnostics -vectorize-loops -vectorize-slp -o /tmp/mostfreq-271846.o -x c++ mostfreq.cpp 1. <eof> parser at end of file 2. mostfreq.cpp:23:6: instantiating function definition 'run' 3. ./worker_ec.h:71:26: instantiating function definition 'run' clang: error: unable to execute command: Segmentation fault clang: error: clang frontend command failed due to signal (use -v to see invocation) Debian clang version 3.6.2-+rc1-1~exp1 (tags/RELEASE_362/rc1) (based on LLVM 3.6.2) Target: x86_64-pc-linux-gnu Thread model: posix clang: note: diagnostic msg: PLEASE submit a bug report to http://bugs.debian.org/ and include the crash backtrace, preprocessed source, and associated run script. clang: note: diagnostic msg: Error generating preprocessed source(s). The function 'run' in worker_ec.h is the callsite of select_dht. If there is any way in which I can help track this down, I will gladly help. Cheers, Lorenz -- System Information: Debian Release: stretch/sid APT prefers unstable APT policy: (500, 'unstable'), (1, 'experimental') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.0.0-2-amd64 (SMP w/8 CPU cores) Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages clang-3.6 depends on: ii binutils 2.25-11 ii libc6 2.19-19 ii libc6-dev 2.19-19 ii libclang-common-3.6-dev 1:3.6.2~+rc1-1~exp1 ii libclang1-3.6 1:3.6.2~+rc1-1~exp1 ii libedit2 3.1-20150325-1 ii libffi6 3.2.1-3 ii libgcc-4.9-dev 4.9.3-3 ii libgcc1 1:5.1.1-14 ii libllvm3.6 1:3.6.2~+rc1-1~exp1 ii libobjc-4.9-dev 4.9.3-3 ii libstdc++-4.9-dev 4.9.3-3 ii libstdc++6 5.1.1-14 ii libtinfo5 5.9+20150516-2 ii zlib1g 1:1.2.8.dfsg-2+b1 Versions of packages clang-3.6 recommends: ii llvm-3.6-dev 1:3.6.2~+rc1-1~exp1 ii python 2.7.9-1 Versions of packages clang-3.6 suggests: pn clang-3.6-doc <none> pn gnustep <none> pn gnustep-devel <none> -- no debconf information
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--- Begin Message ---Le 03/08/2015 15:11, Lorenz Hübschle-Schneider a écrit : > Package: clang-3.6 > Version: 1:3.6.2~+rc1-1~exp1 > Severity: normal > > > Unfortunately I have not been able to isolate what causes the crash or to > produce a minimal example, and I can't share the original code (yet -- it's > unpublished research). > Without a test case, I won't be able to do anything. Please reopen with a way to reproduce it... Sorry about that :( Maybe creduce (https://packages.debian.org/sid/creduce) could help you. Sylvestre
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