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Message-ID: <202603032025.96Ws1pHR-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: oe-kbuild@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable ::::::=20 :::::: Manual check reason: "clang compiler bug" ::::::=20 BCC: lkp@intel.com CC: oe-kbuild-all@lists.linux.dev CC: linux-kernel@vger.kernel.org TO: Brahmajit Das CC: Alexei Starovoitov Hi Brahmajit, FYI, the error/warning was bisected to this commit, please ignore it if it'= s irrelevant. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git = master head: af4e9ef3d78420feb8fe58cd9a1ab80c501b3c08 commit: a1e83d4c0361f4b0e3b7ef8b603bf5e5ef60af86 selftests/bpf: Fix redefin= ition of 'off' as different kind of symbol date: 5 months ago :::::: branch date: 19 hours ago :::::: commit date: 5 months ago config: mips-randconfig-r053-20260303 (https://download.01.org/0day-ci/arch= ive/20260303/202603032025.96Ws1pHR-lkp@intel.com/config) compiler: clang version 23.0.0git (https://github.com/llvm/llvm-project 9a1= 09fbb6e184ec9bcce10615949f598f4c974a9) reproduce (this is a W=3D1 build): (https://download.01.org/0day-ci/archive= /20260303/202603032025.96Ws1pHR-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new versio= n of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/r/202603032025.96Ws1pHR-lkp@intel.com/ Note: functions only called from assembly code should be annotated with the= asmlinkage attribute All errors (new ones prefixed by >>): PLEASE submit a bug report to https://github.com/llvm/llvm-project/issue= s/ and include the crash backtrace, preprocessed source, and associated run= script. Stack dump: 0. Program arguments: clang -Wp,-MMD,arch/mips/math-emu/.sp_tlong.o.d -n= ostdinc -Iarch/mips/include -I./arch/mips/include/generated -Iinclude -I./i= nclude -Iarch/mips/include/uapi -I./arch/mips/include/generated/uapi -Iincl= ude/uapi -I./include/generated/uapi -include include/linux/compiler-version= .h -include include/linux/kconfig.h -include include/linux/compiler_types.h= -D__KERNEL__ --target=3Dmipsel-linux-gnu -fintegrated-as -Werror=3Dunknown= -warning-option -Werror=3Dignored-optimization-argument -Werror=3Doption-ig= nored -Werror=3Dunused-command-line-argument -DVMLINUX_LOAD_ADDRESS=3D0xfff= fffff80101000 -DLINKER_LOAD_ADDRESS=3D0x80101000 -DDATAOFFSET=3D0 -fmacro-p= refix-map=3D=3D -Wundef -DKBUILD_EXTRA_WARN1 -std=3Dgnu11 -fshort-wchar -fu= nsigned-char -fno-common -fno-PIE -fno-strict-aliasing -mno-check-zero-divi= sion -mabi=3D32 -G 0 -mno-abicalls -fno-pic -pipe -msoft-float -Wa,-msoft-f= loat -ffreestanding -EB -fno-stack-check -march=3Dmips3 -Wa,--trap -DTOOLCH= AIN_SUPPORTS_VIRT -Iarch/mips/include/asm/mach-n64 -Iarch/mips/include/asm/= mach-generic -fno-asynchronous-unwind-tables -fno-delete-null-pointer-check= s -O2 -fno-stack-protector -pg -fstrict-flex-arrays=3D3 -fno-strict-overflo= w -fno-stack-check -fno-builtin-wcslen -Wall -Wextra -Wundef -Werror=3Dimpl= icit-function-declaration -Werror=3Dimplicit-int -Werror=3Dreturn-type -Wer= ror=3Dstrict-prototypes -Wno-format-security -Wno-trigraphs -Wno-frame-addr= ess -Wno-address-of-packed-member -Wmissing-declarations -Wmissing-prototyp= es -Wno-gnu -Wno-format-overflow-non-kprintf -Wno-format-truncation-non-kpr= intf -Wno-default-const-init-unsafe -Wno-pointer-sign -Wcast-function-type = -Wno-unterminated-string-initialization -Wimplicit-fallthrough -Werror=3Dda= te-time -Werror=3Dincompatible-pointer-types -Wenum-conversion -Wunused -Wm= issing-format-attribute -Wmissing-include-dirs -Wunused-const-variable -Wno= -missing-field-initializers -Wno-type-limits -Wno-shift-negative-value -Wno= -enum-enum-conversion -Wno-sign-compare -Wno-unused-parameter -DRANDSTRUCT = -frandomize-layout-seed-file=3D./scripts/basic/randstruct.seed -fno-crash-d= iagnostics -Wno-error=3Dreturn-type -Wreturn-type -funsigned-char -Wundef -= falign-functions=3D64 -Iarch/mips/math-emu -Iarch/mips/math-emu -DKBUILD_MO= DFILE=3D\"arch/mips/math-emu/sp_tlong\" -DKBUILD_BASENAME=3D\"sp_tlong\" -D= KBUILD_MODNAME=3D\"sp_tlong\" -D__KBUILD_MODNAME=3Dkmod_sp_tlong -c -o arch= /mips/math-emu/sp_tlong.o arch/mips/math-emu/sp_tlong.c 1. parser at end of file 2. Code generation 3. Running pass 'Function Pass Manager' on module 'arch/mips/math-emu/sp= _tlong.c'. 4. Running pass 'Branch Probability Basic Block Placement' on function '= @ieee754sp_tlong' #0 0x000055ade986d9fb llvm::sys::PrintStackTrace(llvm::raw_ostream&, in= t) (clang-23+0x41019fb) #1 0x000055ade986b5c4 llvm::sys::CleanupOnSignal(unsigned long) (clang-= 23+0x40ff5c4) #2 0x000055ade979fa60 CrashRecoverySignalHandler(int) CrashRecoveryCont= ext.cpp:0:0 #3 0x00007fe5c593fdf0 (/lib/x86_64-linux-gnu/libc.so.6+0x3fdf0) #4 0x000055ade8e162af llvm::TailDuplicator::shouldTailDuplicate(bool, l= lvm::MachineBasicBlock&) (.part.0) TailDuplicator.cpp:0:0 #5 0x000055ade8b23d14 (anonymous namespace)::MachineBlockPlacement::bui= ldCFGChains() MachineBlockPlacement.cpp:0:0 #6 0x000055ade8b266f9 (anonymous namespace)::MachineBlockPlacement::run= (llvm::MachineFunction&) MachineBlockPlacement.cpp:0:0 #7 0x000055ade8b297c1 (anonymous namespace)::MachineBlockPlacementLegac= y::runOnMachineFunction(llvm::MachineFunction&) (.part.0) MachineBlockPlace= ment.cpp:0:0 #8 0x000055ade8b796e8 llvm::MachineFunctionPass::runOnFunction(llvm::Fu= nction&) (clang-23+0x340d6e8) #9 0x000055ade9151ea9 llvm::FPPassManager::runOnFunction(llvm::Function= &) (clang-23+0x39e5ea9) #10 0x000055ade915204c llvm::FPPassManager::runOnModule(llvm::Module&) (= clang-23+0x39e604c) #11 0x000055ade91512b8 llvm::legacy::PassManagerImpl::run(llvm::Module&)= (clang-23+0x39e52b8) #12 0x000055ade9c613d4 clang::emitBackendOutput(clang::CompilerInstance&= , clang::CodeGenOptions&, llvm::StringRef, llvm::Module*, clang::BackendAct= ion, llvm::IntrusiveRefCntPtr, std::unique_ptr>, clang::B= ackendConsumer*) (clang-23+0x44f53d4) #13 0x000055adea2969d7 clang::BackendConsumer::HandleTranslationUnit(cla= ng::ASTContext&) (clang-23+0x4b2a9d7) #14 0x000055adebbe34dc clang::ParseAST(clang::Sema&, bool, bool) (clang-= 23+0x64774dc) #15 0x000055adea5d9d7a clang::FrontendAction::Execute() (clang-23+0x4e6d= d7a) #16 0x000055adea554ce6 clang::CompilerInstance::ExecuteAction(clang::Fro= ntendAction&) (clang-23+0x4de8ce6) #17 0x000055adea6bcb87 clang::ExecuteCompilerInvocation(clang::CompilerI= nstance*) (clang-23+0x4f50b87) #18 0x000055ade66b7315 cc1_main(llvm::ArrayRef, char const*= , void*) (clang-23+0xf4b315) #19 0x000055ade66af013 ExecuteCC1Tool(llvm::SmallVectorImpl= &, llvm::ToolContext const&, llvm::IntrusiveRefCntPtr) driver.cpp:0:0 #20 0x000055ade66af053 int llvm::function_ref&)>::callback_fn&)>(long, llvm::SmallVecto= rImpl&) driver.cpp:0:0 #21 0x000055adea314e89 void llvm::function_ref::callback_fn>, std::__cxx11::basic_string, std::allocato= r>*, bool*) const::'lambda'()>(long) Job.cpp:0:0 #22 0x000055ade979fdc3 llvm::CrashRecoveryContext::RunSafely(llvm::funct= ion_ref) (clang-23+0x4033dc3) #23 0x000055adea3155b4 clang::driver::CC1Command::Execute(llvm::ArrayRef= >, std::__cxx11::basic_string, std::allocator>*, bool*) const (.part.0) Job.cpp:0:0 #24 0x000055adea2d5928 clang::driver::Compilation::ExecuteCommand(clang:= :driver::Command const&, clang::driver::Command const*&, bool) const (clang= -23+0x4b69928) #25 0x000055adea2d6882 clang::driver::Compilation::ExecuteJobs(clang::dr= iver::JobList const&, llvm::SmallVectorImpl>&, bool) const (clang-23+0x4b6a882) #26 0x000055adea2e6fcc clang::driver::Driver::ExecuteCompilation(clang::= driver::Compilation&, llvm::SmallVectorImpl>&) (clang-23+0x4b7afcc) #27 0x000055ade66b3ca3 clang_main(int, char**, llvm::ToolContext const&)= (clang-23+0xf47ca3) #28 0x000055ade654ca69 main (clang-23+0xde0a69) #29 0x00007fe5c5929ca8 (/lib/x86_64-linux-gnu/libc.so.6+0x29ca8) #30 0x00007fe5c5929d65 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.= 6+0x29d65) #31 0x000055ade66aea51 _start (clang-23+0xf42a51) clang: error: clang frontend command failed due to signal (use -v to see= invocation) >> /bin/bash: line 1: 2234372 Segmentation fault clang -Wp,-MMD,arch/m= ips/math-emu/.sp_tlong.o.d -nostdinc -Iarch/mips/include -I./arch/mips/incl= ude/generated -Iinclude -I./include -Iarch/mips/include/uapi -I./arch/mips/= include/generated/uapi -Iinclude/uapi -I./include/generated/uapi -include i= nclude/linux/compiler-version.h -include include/linux/kconfig.h -include i= nclude/linux/compiler_types.h -D__KERNEL__ --target=3Dmipsel-linux-gnu -fin= tegrated-as -Werror=3Dunknown-warning-option -Werror=3Dignored-optimization= -argument -Werror=3Doption-ignored -Werror=3Dunused-command-line-argument -= DVMLINUX_LOAD_ADDRESS=3D0xffffffff80101000 -DLINKER_LOAD_ADDRESS=3D0x801010= 00 -DDATAOFFSET=3D0 -fmacro-prefix-map=3D=3D -Wundef -DKBUILD_EXTRA_WARN1 -= std=3Dgnu11 -fshort-wchar -funsigned-char -fno-common -fno-PIE -fno-strict-= aliasing -mno-check-zero-division -mabi=3D32 -G 0 -mno-abicalls -fno-pic -p= ipe -msoft-float -Wa,-msoft-float -ffreestanding -EB -fno-stack-check -marc= h=3Dmips3 -Wa,--trap -DTOOLCHAIN_SUPPORTS_VIRT -Iarch/mips/include/asm/mach= -n64 -Iarch/mips/include/asm/mach-generic -fno-asynchronous-unwind-tables -= fno-delete-null-pointer-checks -O2 -fno-stack-protector -pg -fstrict-flex-a= rrays=3D3 -fno-strict-overflow -fno-stack-check -fno-builtin-wcslen -Wall -= Wextra -Wundef -Werror=3Dimplicit-function-declaration -Werror=3Dimplicit-i= nt -Werror=3Dreturn-type -Werror=3Dstrict-prototypes -Wno-format-security -= Wno-trigraphs -Wno-frame-address -Wno-address-of-packed-member -Wmissing-de= clarations -Wmissing-prototypes -Wno-gnu -Wno-format-overflow-non-kprintf -= Wno-format-truncation-non-kprintf -Wno-default-const-init-unsafe -Wno-point= er-sign -Wcast-function-type -Wno-unterminated-string-initialization -Wimpl= icit-fallthrough -Werror=3Ddate-time -Werror=3Dincompatible-pointer-types -= Wenum-conversion -Wunused -Wmissing-format-attribute -Wmissing-include-dirs= -Wunused-const-variable -Wno-missing-field-initializers -Wno-type-limits -= Wno-shift-negative-value -Wno-enum-enum-conversion -Wno-sign-compare -Wno-u= nused-parameter -DRANDSTRUCT -frandomize-layout-seed-file=3D./scripts/basic= /randstruct.seed -fno-crash-diagnostics -Wno-error=3Dreturn-type -Wreturn-t= ype -funsigned-char -Wundef -falign-functions=3D64 -Iarch/mips/math-emu -Ia= rch/mips/math-emu -DKBUILD_MODFILE=3D'"arch/mips/math-emu/sp_tlong"' -DKBUI= LD_BASENAME=3D'"sp_tlong"' -DKBUILD_MODNAME=3D'"sp_tlong"' -D__KBUILD_MODNA= ME=3Dkmod_sp_tlong -c -o arch/mips/math-emu/sp_tlong.o arch/mips/math-emu/s= p_tlong.c --=20 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki