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From: kernel test robot <lkp@intel.com>
To: oe-kbuild@lists.linux.dev
Cc: lkp@intel.com
Subject: [linux-next:master 1061/8209] /bin/bash: line 1: 2633471 Segmentation fault      clang -Wp,-MMD,arch/mips/math-emu/.sp_add.o.d -nostdinc -Iarch/mips/include -I./arch/mips/include/generated -Iinclude -I./include -Iarch/mips/include/uapi -I./arch/mips/include/generated/uapi -Iinclude/ua...
Date: Wed, 22 Jul 2026 21:22:27 +0800	[thread overview]
Message-ID: <202607222037.139MU2H4-lkp@intel.com> (raw)

:::::: 
:::::: Manual check reason: "clang compiler bug"
:::::: 

BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
TO: Usama Arif <usama.arif@linux.dev>
CC: Christian Brauner <brauner@kernel.org>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   290aaf24a551d5a0dce037e3fab30820f9113a10
commit: 0baad6f9b9970c6e3f1d33dbfd17d1a77702771d [1061/8209] fs/super: skip non-memcg-aware nr_cached_objects in memcg slab shrink
:::::: branch date: 21 hours ago
:::::: commit date: 3 weeks ago
config: mips-randconfig-r071-20260722 (https://download.01.org/0day-ci/archive/20260722/202607222037.139MU2H4-lkp@intel.com/config)
compiler: clang version 24.0.0git (https://github.com/llvm/llvm-project 5c0dfced1adc55429e32b1db08570abd3a219d85)
smatch: v0.5.0-9187-g5189e3fb
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260722/202607222037.139MU2H4-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/r/202607222037.139MU2H4-lkp@intel.com/

Note: functions only called from assembly code should be annotated with the asmlinkage attribute
Note: the linux-next/master HEAD 290aaf24a551d5a0dce037e3fab30820f9113a10 builds fine.
      It may have been fixed somewhere.

All errors (new ones prefixed by >>):

   PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace and dumped files.
   Stack dump:
   0.	Program arguments: clang -Wp,-MMD,arch/mips/math-emu/.sp_add.o.d -nostdinc -Iarch/mips/include -I./arch/mips/include/generated -Iinclude -I./include -Iarch/mips/include/uapi -I./arch/mips/include/generated/uapi -Iinclude/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=mipsel-linux-gnu -fintegrated-as -Werror=unknown-warning-option -Werror=ignored-optimization-argument -Werror=option-ignored -Werror=unused-command-line-argument -DVMLINUX_LOAD_ADDRESS=0xffffffff80101000 -DLINKER_LOAD_ADDRESS=0x80101000 -DDATAOFFSET=0 -fmacro-prefix-map== -Wundef -DKBUILD_EXTRA_WARN1 -fshort-wchar -funsigned-char -fno-common -fno-PIE -fno-strict-aliasing -std=gnu11 -fms-anonymous-structs -Wno-gnu -Wno-microsoft-anon-tag -mno-check-zero-division -mabi=32 -G 0 -mno-abicalls -fno-pic -pipe -msoft-float -Wa,-msoft-float -ffreestanding -EB -fno-stack-check -march=mips3 -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 -Os -fno-stack-protector -ftrivial-auto-var-init=zero -fexperimental-late-parse-attributes -fdiagnostics-show-inlining-chain -pg -fstrict-flex-arrays=3 -fno-strict-overflow -fno-stack-check -fno-builtin-wcslen -Wall -Wextra -Wundef -Werror=implicit-function-declaration -Werror=implicit-int -Werror=return-type -Werror=strict-prototypes -Wno-format-security -Wno-trigraphs -Wno-frame-address -Wno-address-of-packed-member -Wmissing-declarations -Wmissing-prototypes -Wno-format-overflow-non-kprintf -Wno-format-truncation-non-kprintf -Wno-default-const-init-unsafe -Wno-type-limits -Wno-pointer-sign -Wcast-function-type -Wno-unterminated-string-initialization -Wimplicit-fallthrough -Werror=date-time -Werror=incompatible-pointer-types -Wenum-conversion -Wunused -Wmissing-format-attribute -Wmissing-include-dirs -Wunused-const-variable -Wno-missing-field-initializers -Wno-shift-negative-value -Wno-enum-enum-conversion -Wno-sign-compare -Wno-unused-parameter -g -DRANDSTRUCT -frandomize-layout-seed-file=./scripts/basic/randstruct.seed -fno-crash-diagnostics -Wno-error=return-type -Wreturn-type -funsigned-char -Wundef -falign-functions=64 -fdebug-info-for-profiling -mllvm -enable-fs-discriminator=true -mllvm -improved-fs-discriminator=true -Iarch/mips/math-emu -Iarch/mips/math-emu -DKBUILD_MODFILE=\"arch/mips/math-emu/sp_add\" -DKBUILD_BASENAME=\"sp_add\" -DKBUILD_MODNAME=\"sp_add\" -D__KBUILD_MODNAME=sp_add -c -o arch/mips/math-emu/sp_add.o arch/mips/math-emu/sp_add.c
   1.	<eof> parser at end of file
   2.	Code generation
   3.	Running pass 'Function Pass Manager' on module 'arch/mips/math-emu/sp_add.c'.
   4.	Running pass 'Branch Probability Basic Block Placement' on function '@ieee754sp_add'
    #0 0x0000559a3f5f514a llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (clang-24+0x38b514a)
    #1 0x0000559a3f5f2d24 llvm::sys::CleanupOnSignal(unsigned long) (clang-24+0x38b2d24)
    #2 0x0000559a3f528240 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
    #3 0x00007f6af293edf0 (/lib/x86_64-linux-gnu/libc.so.6+0x3fdf0)
    #4 0x0000559a3ec12acf llvm::TailDuplicator::shouldTailDuplicate(bool, llvm::MachineBasicBlock&) (.part.0) TailDuplicator.cpp:0:0
    #5 0x0000559a3e95962b (anonymous namespace)::MachineBlockPlacement::precomputeTriangleChains() MachineBlockPlacement.cpp:0:0
    #6 0x0000559a3e96747b (anonymous namespace)::MachineBlockPlacement::run(llvm::MachineFunction&) MachineBlockPlacement.cpp:0:0
    #7 0x0000559a3e96a88c (anonymous namespace)::MachineBlockPlacementLegacy::runOnMachineFunction(llvm::MachineFunction&) (.part.0) MachineBlockPlacement.cpp:0:0
    #8 0x0000559a3e9ab273 llvm::MachineFunctionPass::runOnFunction(llvm::Function&) (clang-24+0x2c6b273)
    #9 0x0000559a3eeff179 llvm::FPPassManager::runOnFunction(llvm::Function&) (clang-24+0x31bf179)
   #10 0x0000559a3eeff5ac llvm::FPPassManager::runOnModule(llvm::Module&) (clang-24+0x31bf5ac)
   #11 0x0000559a3ef0014a (anonymous namespace)::MPPassManager::runOnModule(llvm::Module&) LegacyPassManager.cpp:0:0
   #12 0x0000559a3ef0081c llvm::legacy::PassManagerImpl::run(llvm::Module&) (clang-24+0x31c081c)
   #13 0x0000559a3f9a45bf (anonymous namespace)::EmitAssemblyHelper::TimeCodegenPasses(llvm::function_ref<void ()>) BackendUtil.cpp:0:0
   #14 0x0000559a3f9b59ba (anonymous namespace)::EmitAssemblyHelper::emitAssembly(clang::BackendAction, std::unique_ptr<llvm::raw_pwrite_stream, std::default_delete<llvm::raw_pwrite_stream>>, clang::BackendConsumer*) (.constprop.0) BackendUtil.cpp:0:0
   #15 0x0000559a3f9b5baf clang::emitBackendOutput(clang::CompilerInstance&, clang::CodeGenOptions&, llvm::StringRef, llvm::Module*, clang::BackendAction, llvm::IntrusiveRefCntPtr<llvm::vfs::FileSystem>, std::unique_ptr<llvm::raw_pwrite_stream, std::default_delete<llvm::raw_pwrite_stream>>, clang::BackendConsumer*) (clang-24+0x3c75baf)
   #16 0x0000559a3fff0587 clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&) (clang-24+0x42b0587)
   #17 0x0000559a419f6a8c clang::ParseAST(clang::Sema&, bool, bool) (clang-24+0x5cb6a8c)
   #18 0x0000559a4034f8de clang::FrontendAction::Execute() (clang-24+0x460f8de)
   #19 0x0000559a402dbade clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (clang-24+0x459bade)
   #20 0x0000559a4041e407 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (clang-24+0x46de407)
   #21 0x0000559a3c61ad88 cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (clang-24+0x8dad88)
   #22 0x0000559a3c612a53 ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&, llvm::IntrusiveRefCntPtr<llvm::vfs::FileSystem>) driver.cpp:0:0
   #23 0x0000559a3c612a93 int llvm::function_ref<int (llvm::SmallVectorImpl<char const*>&)>::callback_fn<clang_main(int, char**, llvm::ToolContext const&)::'lambda'(llvm::SmallVectorImpl<char const*>&)>(long, llvm::SmallVectorImpl<char const*>&) driver.cpp:0:0
   #24 0x0000559a4006e1c9 void llvm::function_ref<void ()>::callback_fn<clang::driver::CC1Command::Execute(llvm::ArrayRef<std::optional<llvm::StringRef>>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>*, bool*) const::'lambda'()>(long) Job.cpp:0:0
   #25 0x0000559a3f5285a3 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (clang-24+0x37e85a3)
   #26 0x0000559a4006f74c clang::driver::CC1Command::Execute(llvm::ArrayRef<std::optional<llvm::StringRef>>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>*, bool*) const (.part.0) Job.cpp:0:0
   #27 0x0000559a40027f58 clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (clang-24+0x42e7f58)
   #28 0x0000559a4002c792 clang::driver::Compilation::ExecuteJobs(clang::driver::JobList const&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&, bool) const (clang-24+0x42ec792)
   #29 0x0000559a4003e59c clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (clang-24+0x42fe59c)
   #30 0x0000559a3c617712 clang_main(int, char**, llvm::ToolContext const&) (clang-24+0x8d7712)
   #31 0x0000559a3c532fd9 main (clang-24+0x7f2fd9)
   #32 0x00007f6af2928ca8 (/lib/x86_64-linux-gnu/libc.so.6+0x29ca8)
   #33 0x00007f6af2928d65 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29d65)
   #34 0x0000559a3c6124b1 _start (clang-24+0x8d24b1)
   clang: error: clang frontend command failed due to signal (use -v to see invocation)
>> /bin/bash: line 1: 2633471 Segmentation fault      clang -Wp,-MMD,arch/mips/math-emu/.sp_add.o.d -nostdinc -Iarch/mips/include -I./arch/mips/include/generated -Iinclude -I./include -Iarch/mips/include/uapi -I./arch/mips/include/generated/uapi -Iinclude/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=mipsel-linux-gnu -fintegrated-as -Werror=unknown-warning-option -Werror=ignored-optimization-argument -Werror=option-ignored -Werror=unused-command-line-argument -DVMLINUX_LOAD_ADDRESS=0xffffffff80101000 -DLINKER_LOAD_ADDRESS=0x80101000 -DDATAOFFSET=0 -fmacro-prefix-map== -Wundef -DKBUILD_EXTRA_WARN1 -fshort-wchar -funsigned-char -fno-common -fno-PIE -fno-strict-aliasing -std=gnu11 -fms-anonymous-structs -Wno-gnu -Wno-microsoft-anon-tag -mno-check-zero-division -mabi=32 -G 0 -mno-abicalls -fno-pic -pipe -msoft-float -Wa,-msoft-float -ffreestanding -EB -fno-stack-check -march=mips3 -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 -Os -fno-stack-protector -ftrivial-auto-var-init=zero -fexperimental-late-parse-attributes -fdiagnostics-show-inlining-chain -pg -fstrict-flex-arrays=3 -fno-strict-overflow -fno-stack-check -fno-builtin-wcslen -Wall -Wextra -Wundef -Werror=implicit-function-declaration -Werror=implicit-int -Werror=return-type -Werror=strict-prototypes -Wno-format-security -Wno-trigraphs -Wno-frame-address -Wno-address-of-packed-member -Wmissing-declarations -Wmissing-prototypes -Wno-format-overflow-non-kprintf -Wno-format-truncation-non-kprintf -Wno-default-const-init-unsafe -Wno-type-limits -Wno-pointer-sign -Wcast-function-type -Wno-unterminated-string-initialization -Wimplicit-fallthrough -Werror=date-time -Werror=incompatible-pointer-types -Wenum-conversion -Wunused -Wmissing-format-attribute -Wmissing-include-dirs -Wunused-const-variable -Wno-missing-field-initializers -Wno-shift-negative-value -Wno-enum-enum-conversion -Wno-sign-compare -Wno-unused-parameter -g -DRANDSTRUCT -frandomize-layout-seed-file=./scripts/basic/randstruct.seed -fno-crash-diagnostics -Wno-error=return-type -Wreturn-type -funsigned-char -Wundef -falign-functions=64 -fdebug-info-for-profiling -mllvm -enable-fs-discriminator=true -mllvm -improved-fs-discriminator=true -Iarch/mips/math-emu -Iarch/mips/math-emu -DKBUILD_MODFILE='"arch/mips/math-emu/sp_add"' -DKBUILD_BASENAME='"sp_add"' -DKBUILD_MODNAME='"sp_add"' -D__KBUILD_MODNAME=sp_add -c -o arch/mips/math-emu/sp_add.o arch/mips/math-emu/sp_add.c

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                 reply	other threads:[~2026-07-22 13:23 UTC|newest]

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