From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.15]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2BB71307492 for ; Sat, 11 Jul 2026 20:52:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.15 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783803175; cv=none; b=Oth0C5dbZHTi+6vuCtqowCKxHIfSlQ94Ip9T0Z0gJSTMbuKoNYZEqV2elWPLj3zGxRIg8QqCiIFiX9dmx4EcBfogRgwedbeXHcX/bOxm78/OGuj8ABCXK+LWdhHLyDklv3VNSJqoy9T7VZ5y6ygm9mTBMaYTzkyIkhgizLV9nVw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783803175; c=relaxed/simple; bh=kmKGYBCI+s5jiECyF8RtefHLMwrEw0Z0SCQODbVXGw0=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type; b=FvLGvkRi5yY7Atj1m26HfIA18sPRCWoi6P2o1wj86TTrJxFeX9J4Uw9EzIRw++kDKBNzhHB/CFZFWhmw1gVluDFcQ3+8DWMBGK8FCTysWQm7idreWM7pubiOg8+hTPqtiaiwBb/TKsFuOga9myEHJWhMqBNvFK2lpYZGq3ysIZk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=F8GFxcoQ; arc=none smtp.client-ip=198.175.65.15 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="F8GFxcoQ" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1783803172; x=1815339172; h=date:from:to:cc:subject:message-id:mime-version: content-transfer-encoding; bh=kmKGYBCI+s5jiECyF8RtefHLMwrEw0Z0SCQODbVXGw0=; b=F8GFxcoQKEmCEhClIw0jSp/CIrCTBJjUuwfOx9CkvaciEVP7iL/bGOQ8 sW1dSCiHAGneZAG12CRNzcuFOB7upqd5RJcsxMVcgx1ECq6hlkwOyx2c8 39PkIq+Ps2m8iHJsXL7zlnNWklMztvSdHSfmJKtyvilZVbKqq2TVRqNYO LFjdt/Z9ifNyVhyr7l1WgpdoUUKahucIDDmV9kySeNOaah7ElVry15aOx QNfI9q0D7/Dl4iLX5W8f2wZAML3hb4FnX2jYqZGBxCA4ls0ui0Cpyitdq M63lYDBYGySv/Ej8CEJ7YxCFBMru+zEeiNRKRQArEGwvnnRWe7lyTJDRf Q==; X-CSE-ConnectionGUID: P7L5kU03TR+GSoFXXWY2mQ== X-CSE-MsgGUID: XPo704A8RUSBqobe0SI5BA== X-IronPort-AV: E=McAfee;i="6800,10657,11841"; a="88155597" X-IronPort-AV: E=Sophos;i="6.25,154,1779174000"; d="scan'208";a="88155597" Received: from orviesa004.jf.intel.com ([10.64.159.144]) by orvoesa107.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Jul 2026 13:52:50 -0700 X-CSE-ConnectionGUID: Q8FcAusKRH+sulvYjfd3QA== X-CSE-MsgGUID: CHTnjTQvTIioOrjDn6yTvg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.25,154,1779174000"; d="scan'208";a="259058007" Received: from lkp-server02.sh.intel.com (HELO ea128546eb3d) ([10.239.97.151]) by orviesa004.jf.intel.com with ESMTP; 11 Jul 2026 13:52:48 -0700 Received: from kbuild by ea128546eb3d with local (Exim 4.98.2) (envelope-from ) id 1wiegn-00000000KO0-37NG; Sat, 11 Jul 2026 20:52:45 +0000 Date: Sun, 12 Jul 2026 04:52:23 +0800 From: kernel test robot To: oe-kbuild@lists.linux.dev Cc: lkp@intel.com Subject: /bin/bash: line 1: 1095456 Segmentation fault clang -Wp,-MMD,net/ipv6/.sit.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./includ... Message-ID: <202607120443.9PdOP0WC-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: Mateusz Guzik CC: Christian Brauner CC: Jan Kara Hi Mateusz, 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: dd3210c47e8d3ac6b4e9141fc68acc03b38c0ba3 commit: ac8bcfc07d0ba68721a4ff750e7df12d203ae6ac fs: relocate and tidy up i= hold() date: 9 weeks ago :::::: branch date: 18 hours ago :::::: commit date: 9 weeks ago config: mips-randconfig-r062-20260707 (https://download.01.org/0day-ci/arch= ive/20260712/202607120443.9PdOP0WC-lkp@intel.com/config) compiler: clang version 23.0.0git (https://github.com/llvm/llvm-project 0a2= fb2a2269da0e2a3e230beb6cad39ca314db33) reproduce (this is a W=3D1 build): (https://download.01.org/0day-ci/archive= /20260712/202607120443.9PdOP0WC-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 | Fixes: ac8bcfc07d0b ("fs: relocate and tidy up ihold()") | Reported-by: kernel test robot | Closes: https://lore.kernel.org/r/202607120443.9PdOP0WC-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 and dumped files. Stack dump: 0. Program arguments: clang -Wp,-MMD,net/ipv6/.sit.o.d -nostdinc -Iarch/= mips/include -I./arch/mips/include/generated -Iinclude -I./include -Iarch/m= ips/include/uapi -I./arch/mips/include/generated/uapi -Iinclude/uapi -I./in= clude/generated/uapi -include include/linux/compiler-version.h -include inc= lude/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-ignored -Werror= =3Dunused-command-line-argument -DVMLINUX_LOAD_ADDRESS=3D0xffffffff84000000= -DLINKER_LOAD_ADDRESS=3D0x84000000 -DDATAOFFSET=3D0 -fmacro-prefix-map=3D= =3D -Wundef -DKBUILD_EXTRA_WARN1 -fshort-wchar -funsigned-char -fno-common = -fno-PIE -fno-strict-aliasing -std=3Dgnu11 -fms-anonymous-structs -Wno-gnu = -Wno-microsoft-anon-tag -mno-check-zero-division -mabi=3D32 -G 0 -mno-abica= lls -fno-pic -pipe -msoft-float -Wa,-msoft-float -ffreestanding -EL -fno-st= ack-check -march=3Dmips4 -Wa,--trap -DTOOLCHAIN_SUPPORTS_VIRT -Iarch/mips/i= nclude/asm/mach-rm -Iarch/mips/include/asm/mach-generic -fno-asynchronous-u= nwind-tables -fno-delete-null-pointer-checks -Os -fstack-protector-strong -= ftrivial-auto-var-init=3Dpattern -fexperimental-late-parse-attributes -fdia= gnostics-show-inlining-chain -pg -fstrict-flex-arrays=3D3 -fno-strict-overf= low -fno-stack-check -fno-builtin-wcslen -Wall -Wextra -Wundef -Werror=3Dim= plicit-function-declaration -Werror=3Dimplicit-int -Werror=3Dreturn-type -W= error=3Dstrict-prototypes -Wno-format-security -Wno-trigraphs -Wno-frame-ad= dress -Wno-address-of-packed-member -Wmissing-declarations -Wmissing-protot= ypes -Wno-format-overflow-non-kprintf -Wno-format-truncation-non-kprintf -W= no-default-const-init-unsafe -Wno-type-limits -Wno-pointer-sign -Wcast-func= tion-type -Wno-unterminated-string-initialization -Wimplicit-fallthrough -W= error=3Ddate-time -Werror=3Dincompatible-pointer-types -Wenum-conversion -W= unused -Wmissing-format-attribute -Wmissing-include-dirs -Wunused-const-var= iable -Wno-missing-field-initializers -Wno-shift-negative-value -Wno-enum-e= num-conversion -Wno-sign-compare -Wno-unused-parameter -g -gdwarf-5 -DRANDS= TRUCT -frandomize-layout-seed-file=3D./scripts/basic/randstruct.seed -fno-c= rash-diagnostics -Wno-error=3Dreturn-type -Wreturn-type -funsigned-char -Wu= ndef -falign-functions=3D64 -fsanitize=3Darray-bounds -fsanitize=3Dshift -f= sanitize=3Dunreachable -fsanitize=3Dbool -Inet/ipv6 -Inet/ipv6 -DKBUILD_MOD= FILE=3D\"net/ipv6/sit\" -DKBUILD_BASENAME=3D\"sit\" -DKBUILD_MODNAME=3D\"si= t\" -D__KBUILD_MODNAME=3Dsit -c -o net/ipv6/sit.o net/ipv6/sit.c 1. parser at end of file 2. Code generation 3. Running pass 'Function Pass Manager' on module 'net/ipv6/sit.c'. 4. Running pass 'Branch Probability Basic Block Placement' on function '= @ipip6_rcv' #0 0x000055c1f34f76da llvm::sys::PrintStackTrace(llvm::raw_ostream&, in= t) (clang-23+0x3e266da) #1 0x000055c1f34f52a4 llvm::sys::CleanupOnSignal(unsigned long) (clang-= 23+0x3e242a4) #2 0x000055c1f342aa00 CrashRecoverySignalHandler(int) CrashRecoveryCont= ext.cpp:0:0 #3 0x00007fc0f9d3edf0 (/lib/x86_64-linux-gnu/libc.so.6+0x3fdf0) #4 0x000055c1f2b1b24f llvm::TailDuplicator::shouldTailDuplicate(bool, l= lvm::MachineBasicBlock&) (.part.0) TailDuplicator.cpp:0:0 #5 0x000055c1f286228e (anonymous namespace)::MachineBlockPlacement::pre= computeTriangleChains() MachineBlockPlacement.cpp:0:0 #6 0x000055c1f286febb (anonymous namespace)::MachineBlockPlacement::run= (llvm::MachineFunction&) MachineBlockPlacement.cpp:0:0 #7 0x000055c1f28732cc (anonymous namespace)::MachineBlockPlacementLegac= y::runOnMachineFunction(llvm::MachineFunction&) (.part.0) MachineBlockPlace= ment.cpp:0:0 #8 0x000055c1f28b56b3 llvm::MachineFunctionPass::runOnFunction(llvm::Fu= nction&) (clang-23+0x31e46b3) #9 0x000055c1f2e04979 llvm::FPPassManager::runOnFunction(llvm::Function= &) (clang-23+0x3733979) #10 0x000055c1f2e04dac llvm::FPPassManager::runOnModule(llvm::Module&) (= clang-23+0x3733dac) #11 0x000055c1f2e0594a (anonymous namespace)::MPPassManager::runOnModule= (llvm::Module&) LegacyPassManager.cpp:0:0 #12 0x000055c1f2e0601c llvm::legacy::PassManagerImpl::run(llvm::Module&)= (clang-23+0x373501c) #13 0x000055c1f38a11af (anonymous namespace)::EmitAssemblyHelper::TimeCo= degenPasses(llvm::function_ref) BackendUtil.cpp:0:0 #14 0x000055c1f38b29f2 (anonymous namespace)::EmitAssemblyHelper::emitAs= sembly(clang::BackendAction, std::unique_ptr>, clang::BackendConsumer*) (.constp= rop.0) BackendUtil.cpp:0:0 #15 0x000055c1f38b2c2f clang::emitBackendOutput(clang::CompilerInstance&= , clang::CodeGenOptions&, llvm::StringRef, llvm::Module*, clang::BackendAct= ion, llvm::IntrusiveRefCntPtr, std::unique_ptr>, clang::B= ackendConsumer*) (clang-23+0x41e1c2f) #16 0x000055c1f3ee8907 clang::BackendConsumer::HandleTranslationUnit(cla= ng::ASTContext&) (clang-23+0x4817907) #17 0x000055c1f58f2a8c clang::ParseAST(clang::Sema&, bool, bool) (clang-= 23+0x6221a8c) #18 0x000055c1f424b35e clang::FrontendAction::Execute() (clang-23+0x4b7a= 35e) #19 0x000055c1f41d675e clang::CompilerInstance::ExecuteAction(clang::Fro= ntendAction&) (clang-23+0x4b0575e) #20 0x000055c1f4334a07 clang::ExecuteCompilerInvocation(clang::CompilerI= nstance*) (clang-23+0x4c63a07) #21 0x000055c1f053f4c8 cc1_main(llvm::ArrayRef, char const*= , void*) (clang-23+0xe6e4c8) #22 0x000055c1f0537193 ExecuteCC1Tool(llvm::SmallVectorImpl= &, llvm::ToolContext const&, llvm::IntrusiveRefCntPtr) driver.cpp:0:0 #23 0x000055c1f05371d3 int llvm::function_ref&)>::callback_fn&)>(long, llvm::SmallVecto= rImpl&) driver.cpp:0:0 #24 0x000055c1f3f61ff9 void llvm::function_ref::callback_fn>, std::__cxx11::basic_string, std::allocato= r>*, bool*) const::'lambda'()>(long) Job.cpp:0:0 #25 0x000055c1f342ad63 llvm::CrashRecoveryContext::RunSafely(llvm::funct= ion_ref) (clang-23+0x3d59d63) #26 0x000055c1f3f6354c clang::driver::CC1Command::Execute(llvm::ArrayRef= >, std::__cxx11::basic_string, std::allocator>*, bool*) const (.part.0) Job.cpp:0:0 #27 0x000055c1f3f1e848 clang::driver::Compilation::ExecuteCommand(clang:= :driver::Command const&, clang::driver::Command const*&, bool) const (clang= -23+0x484d848) #28 0x000055c1f3f1f7e2 clang::driver::Compilation::ExecuteJobs(clang::dr= iver::JobList const&, llvm::SmallVectorImpl>&, bool) const (clang-23+0x484e7e2) #29 0x000055c1f3f3303c clang::driver::Driver::ExecuteCompilation(clang::= driver::Compilation&, llvm::SmallVectorImpl>&) (clang-23+0x486203c) #30 0x000055c1f053be52 clang_main(int, char**, llvm::ToolContext const&)= (clang-23+0xe6ae52) #31 0x000055c1f04573f9 main (clang-23+0xd863f9) #32 0x00007fc0f9d28ca8 (/lib/x86_64-linux-gnu/libc.so.6+0x29ca8) #33 0x00007fc0f9d28d65 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.= 6+0x29d65) #34 0x000055c1f0536bf1 _start (clang-23+0xe65bf1) clang: error: clang frontend command failed due to signal (use -v to see= invocation) >> /bin/bash: line 1: 1095456 Segmentation fault clang -Wp,-MMD,net/ip= v6/.sit.o.d -nostdinc -Iarch/mips/include -I./arch/mips/include/generated -= Iinclude -I./include -Iarch/mips/include/uapi -I./arch/mips/include/generat= ed/uapi -Iinclude/uapi -I./include/generated/uapi -include include/linux/co= mpiler-version.h -include include/linux/kconfig.h -include include/linux/co= mpiler_types.h -D__KERNEL__ --target=3Dmipsel-linux-gnu -fintegrated-as -We= rror=3Dunknown-warning-option -Werror=3Dignored-optimization-argument -Werr= or=3Doption-ignored -Werror=3Dunused-command-line-argument -DVMLINUX_LOAD_A= DDRESS=3D0xffffffff84000000 -DLINKER_LOAD_ADDRESS=3D0x84000000 -DDATAOFFSET= =3D0 -fmacro-prefix-map=3D=3D -Wundef -DKBUILD_EXTRA_WARN1 -fshort-wchar -f= unsigned-char -fno-common -fno-PIE -fno-strict-aliasing -std=3Dgnu11 -fms-a= nonymous-structs -Wno-gnu -Wno-microsoft-anon-tag -mno-check-zero-division = -mabi=3D32 -G 0 -mno-abicalls -fno-pic -pipe -msoft-float -Wa,-msoft-float = -ffreestanding -EL -fno-stack-check -march=3Dmips4 -Wa,--trap -DTOOLCHAIN_S= UPPORTS_VIRT -Iarch/mips/include/asm/mach-rm -Iarch/mips/include/asm/mach-g= eneric -fno-asynchronous-unwind-tables -fno-delete-null-pointer-checks -Os = -fstack-protector-strong -ftrivial-auto-var-init=3Dpattern -fexperimental-l= ate-parse-attributes -fdiagnostics-show-inlining-chain -pg -fstrict-flex-ar= rays=3D3 -fno-strict-overflow -fno-stack-check -fno-builtin-wcslen -Wall -W= extra -Wundef -Werror=3Dimplicit-function-declaration -Werror=3Dimplicit-in= t -Werror=3Dreturn-type -Werror=3Dstrict-prototypes -Wno-format-security -W= no-trigraphs -Wno-frame-address -Wno-address-of-packed-member -Wmissing-dec= larations -Wmissing-prototypes -Wno-format-overflow-non-kprintf -Wno-format= -truncation-non-kprintf -Wno-default-const-init-unsafe -Wno-type-limits -Wn= o-pointer-sign -Wcast-function-type -Wno-unterminated-string-initialization= -Wimplicit-fallthrough -Werror=3Ddate-time -Werror=3Dincompatible-pointer-= types -Wenum-conversion -Wunused -Wmissing-format-attribute -Wmissing-inclu= de-dirs -Wunused-const-variable -Wno-missing-field-initializers -Wno-shift-= negative-value -Wno-enum-enum-conversion -Wno-sign-compare -Wno-unused-para= meter -g -gdwarf-5 -DRANDSTRUCT -frandomize-layout-seed-file=3D./scripts/ba= sic/randstruct.seed -fno-crash-diagnostics -Wno-error=3Dreturn-type -Wretur= n-type -funsigned-char -Wundef -falign-functions=3D64 -fsanitize=3Darray-bo= unds -fsanitize=3Dshift -fsanitize=3Dunreachable -fsanitize=3Dbool -Inet/ip= v6 -Inet/ipv6 -DKBUILD_MODFILE=3D'"net/ipv6/sit"' -DKBUILD_BASENAME=3D'"sit= "' -DKBUILD_MODNAME=3D'"sit"' -D__KBUILD_MODNAME=3Dsit -c -o net/ipv6/sit.o= net/ipv6/sit.c -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki