[rcu:fixes.v7.0-rc4 1/4] /bin/bash: line 1: 2002681 Segmentation fault clang -Wp,-MMD,net/tls/.tls_main.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./in...

[kernel test robot <lkp@intel.com>]

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

BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
TO: "Paul E. McKenney" <paulmck@kernel.org>
CC: Boqun Feng <boqun@kernel.org>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux.git fixes.v7.0-rc4
head:   647a432b1dc4fb190d96f81c4843470a3cf80f2e
commit: f627bbab8fd04f71fb7c724adba68c06bb762dce [1/4] srcu: Use raw spinlocks so call_srcu() can be used under preempt_disable()
:::::: branch date: 7 days ago
:::::: commit date: 12 days ago
config: mips-randconfig-r053-20260325 (https://download.01.org/0day-ci/archive/20260401/202604010846.etR5KmG9-lkp@intel.com/config)
compiler: clang version 23.0.0git (https://github.com/llvm/llvm-project 054e11d1a17e5ba88bb1a8ef32fad3346e80b186)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260401/202604010846.etR5KmG9-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/202604010846.etR5KmG9-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/issues/ and include the crash backtrace, preprocessed source, and associated run script.
   Stack dump:
   0.	Program arguments: clang -Wp,-MMD,net/tls/.tls_main.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=0xffffffff80100000 -DLINKER_LOAD_ADDRESS=0x80100000 -DDATAOFFSET=0 -fmacro-prefix-map== -Wundef -DKBUILD_EXTRA_WARN1 -std=gnu11 -fshort-wchar -funsigned-char -fno-common -fno-PIE -fno-strict-aliasing -mno-check-zero-division -mabi=32 -G 0 -mno-abicalls -fno-pic -pipe -msoft-float -Wa,-msoft-float -ffreestanding -EL -fno-stack-check -march=mips3 -Wa,--trap -DTOOLCHAIN_SUPPORTS_VIRT -Iarch/mips/include/asm/mach-tx49xx -Iarch/mips/include/asm/mach-generic -fno-asynchronous-unwind-tables -fno-delete-null-pointer-checks -O2 -fstack-protector-strong -ftrivial-auto-var-init=zero -fexperimental-late-parse-attributes -pg -fstrict-flex-arrays=3 -fms-extensions -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-gnu -Wno-microsoft-anon-tag -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 -DRANDSTRUCT -frandomize-layout-seed-file=./scripts/basic/randstruct.seed -fno-crash-diagnostics -Wno-error=return-type -Wreturn-type -funsigned-char -Wundef -falign-functions=64 -fsanitize=array-bounds -fsanitize=shift -fsanitize=unreachable -fsanitize=bool -Inet/tls -Inet/tls -DKBUILD_MODFILE=\"net/tls/tls\" -DKBUILD_BASENAME=\"tls_main\" -DKBUILD_MODNAME=\"tls\" -D__KBUILD_MODNAME=tls -c -o net/tls/tls_main.o net/tls/tls_main.c
   1.	<eof> parser at end of file
   2.	Code generation
   3.	Running pass 'Function Pass Manager' on module 'net/tls/tls_main.c'.
   4.	Running pass 'Branch Probability Basic Block Placement' on function '@wait_on_pending_writer'
    #0 0x000055a558a4c0db llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (clang-23+0x41670db)
    #1 0x000055a558a49ca4 llvm::sys::CleanupOnSignal(unsigned long) (clang-23+0x4164ca4)
    #2 0x000055a55897dbe0 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
    #3 0x00007f25121a1df0 (/lib/x86_64-linux-gnu/libc.so.6+0x3fdf0)
    #4 0x000055a557fe7c2f llvm::TailDuplicator::shouldTailDuplicate(bool, llvm::MachineBasicBlock&) (.part.0) TailDuplicator.cpp:0:0
    #5 0x000055a557cf99f4 (anonymous namespace)::MachineBlockPlacement::buildCFGChains() MachineBlockPlacement.cpp:0:0
    #6 0x000055a557cfe2ed (anonymous namespace)::MachineBlockPlacement::run(llvm::MachineFunction&) MachineBlockPlacement.cpp:0:0
    #7 0x000055a557cff4f1 (anonymous namespace)::MachineBlockPlacementLegacy::runOnMachineFunction(llvm::MachineFunction&) (.part.0) MachineBlockPlacement.cpp:0:0
    #8 0x000055a557d4d1a8 llvm::MachineFunctionPass::runOnFunction(llvm::Function&) (clang-23+0x34681a8)
    #9 0x000055a5583243e9 llvm::FPPassManager::runOnFunction(llvm::Function&) (clang-23+0x3a3f3e9)
   #10 0x000055a55832458c llvm::FPPassManager::runOnModule(llvm::Module&) (clang-23+0x3a3f58c)
   #11 0x000055a5583237f8 llvm::legacy::PassManagerImpl::run(llvm::Module&) (clang-23+0x3a3e7f8)
   #12 0x000055a558e4bee1 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-23+0x4566ee1)
   #13 0x000055a559492807 clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&) (clang-23+0x4bad807)
   #14 0x000055a55ae7bddc clang::ParseAST(clang::Sema&, bool, bool) (clang-23+0x6596ddc)
   #15 0x000055a5597ec0fa clang::FrontendAction::Execute() (clang-23+0x4f070fa)
   #16 0x000055a559765ed6 clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (clang-23+0x4e80ed6)
   #17 0x000055a5598d5567 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (clang-23+0x4ff0567)
   #18 0x000055a555832895 cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (clang-23+0xf4d895)
   #19 0x000055a55582a5a3 ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&, llvm::IntrusiveRefCntPtr<llvm::vfs::FileSystem>) driver.cpp:0:0
   #20 0x000055a55582a5e3 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
   #21 0x000055a559504849 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
   #22 0x000055a55897df43 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (clang-23+0x4098f43)
   #23 0x000055a559504f74 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
   #24 0x000055a5594c37a8 clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (clang-23+0x4bde7a8)
   #25 0x000055a5594c4702 clang::driver::Compilation::ExecuteJobs(clang::driver::JobList const&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&, bool) const (clang-23+0x4bdf702)
   #26 0x000055a5594d59fc clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (clang-23+0x4bf09fc)
   #27 0x000055a55582f24f clang_main(int, char**, llvm::ToolContext const&) (clang-23+0xf4a24f)
   #28 0x000055a5556c6bc9 main (clang-23+0xde1bc9)
   #29 0x00007f251218bca8 (/lib/x86_64-linux-gnu/libc.so.6+0x29ca8)
   #30 0x00007f251218bd65 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29d65)
   #31 0x000055a555829fe1 _start (clang-23+0xf44fe1)
   clang: error: clang frontend command failed due to signal (use -v to see invocation)
>> /bin/bash: line 1: 2002681 Segmentation fault      clang -Wp,-MMD,net/tls/.tls_main.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=0xffffffff80100000 -DLINKER_LOAD_ADDRESS=0x80100000 -DDATAOFFSET=0 -fmacro-prefix-map== -Wundef -DKBUILD_EXTRA_WARN1 -std=gnu11 -fshort-wchar -funsigned-char -fno-common -fno-PIE -fno-strict-aliasing -mno-check-zero-division -mabi=32 -G 0 -mno-abicalls -fno-pic -pipe -msoft-float -Wa,-msoft-float -ffreestanding -EL -fno-stack-check -march=mips3 -Wa,--trap -DTOOLCHAIN_SUPPORTS_VIRT -Iarch/mips/include/asm/mach-tx49xx -Iarch/mips/include/asm/mach-generic -fno-asynchronous-unwind-tables -fno-delete-null-pointer-checks -O2 -fstack-protector-strong -ftrivial-auto-var-init=zero -fexperimental-late-parse-attributes -pg -fstrict-flex-arrays=3 -fms-extensions -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-gnu -Wno-microsoft-anon-tag -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 -DRANDSTRUCT -frandomize-layout-seed-file=./scripts/basic/randstruct.seed -fno-crash-diagnostics -Wno-error=return-type -Wreturn-type -funsigned-char -Wundef -falign-functions=64 -fsanitize=array-bounds -fsanitize=shift -fsanitize=unreachable -fsanitize=bool -Inet/tls -Inet/tls -DKBUILD_MODFILE='"net/tls/tls"' -DKBUILD_BASENAME='"tls_main"' -DKBUILD_MODNAME='"tls"' -D__KBUILD_MODNAME=tls -c -o net/tls/tls_main.o net/tls/tls_main.c

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