From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.9]) (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 AD11D420867 for ; Tue, 7 Jul 2026 20:13:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.9 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783455190; cv=none; b=jaHtqCX0W4gAHVFBkiqvy/ma7qRsY8RxUtBYYlaW6fWVKD0wGxX+SfQa9mw+f3f1aVAjZ+iryS5WwyNGGcnBb2iUDVziAzNT+pgoGVUHjrYFPGIOjtTDM8gox+HQciaAeKgTnTy/UrPLtuCyvnE9j3sPPG2I8ZoEpOnXLJvvd5Y= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783455190; c=relaxed/simple; bh=pcDxCF1SqT7Y7hMkE3vBMbnBeYjhDZRWhNd3HwylBOg=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type: Content-Disposition; b=u4ye1bBv7jS7PMxz0gwNa7XKSoCbpittV0DGghHu8D4BiIDLCiXx5ILkCyhLtpW8+jjOYNWMkJeC1md3Nes+FH41ZdkzCu6xMLRgNEWkKo3HSaEIL7xiKuo/Vqw2mXsNx+dzNe12kcO1sMIB9tEHFQHd+dT8a6gtmI7X8kCvZ/g= 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=dxe2/Bru; arc=none smtp.client-ip=198.175.65.9 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="dxe2/Bru" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1783455187; x=1814991187; h=date:from:to:cc:subject:message-id:mime-version: content-transfer-encoding; bh=pcDxCF1SqT7Y7hMkE3vBMbnBeYjhDZRWhNd3HwylBOg=; b=dxe2/BruJwJIzNOfs9EeE+N/1L0NfIDp5FZVzcV/6ffS4TypWrKBYhmo VWMPQEblCgl7wwrc44gy+L4Kaeg5PBAqNEhQFApFeVwJBL3zxLPQWoSXU R8s6PXE2OthgDUHOhjNslDwuUrelqHZBhrVhpxTP2W0D6ksFHu0rnUdI6 CdUu6qz7bMxOPXchUK6AvcBOAFASFiGMszrlTO1TnNJ5W0UxJNEvotlZa RN9HAQ+SZU6X6tCtXUorupXIJVA4wjhkoDE/yEdDm0jehF8LZHy8Dzuum vuX2fZBmhfDk/JdijFhblFtGSy5LOZnDBPNQr1N6IyB+WiO/yyuOijucc Q==; X-CSE-ConnectionGUID: Y0o9fO1sSY+JedGFlBfr8g== X-CSE-MsgGUID: U5pPaKoUSAyzV1yS9CwqvA== X-IronPort-AV: E=McAfee;i="6800,10657,11840"; a="106911536" X-IronPort-AV: E=Sophos;i="6.25,153,1779174000"; d="scan'208";a="106911536" Received: from fmviesa009.fm.intel.com ([10.60.135.149]) by orvoesa101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Jul 2026 13:13:07 -0700 X-CSE-ConnectionGUID: stWf1+OgR8G0dF1VWnRFyg== X-CSE-MsgGUID: JQHyaTd6Tx2Qi7ukzEZR9g== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.25,153,1779174000"; d="scan'208";a="247702259" Received: from lkp-server02.sh.intel.com (HELO ea128546eb3d) ([10.239.97.151]) by fmviesa009.fm.intel.com with ESMTP; 07 Jul 2026 13:13:05 -0700 Received: from kbuild by ea128546eb3d with local (Exim 4.98.2) (envelope-from ) id 1whCAA-00000000FeV-2iSr; Tue, 07 Jul 2026 20:13:02 +0000 Date: Wed, 8 Jul 2026 04:12:53 +0800 From: kernel test robot To: oe-kbuild@lists.linux.dev Cc: lkp@intel.com Subject: Re: [PATCH net] vxlan: vnifilter: enforce exact length of GROUP/GROUP6 attributes Message-ID: <202607080424.KSXDsyz9-lkp@intel.com> 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-Disposition: inline Content-Transfer-Encoding: quoted-printable ::::::=20 :::::: Manual check reason: "clang compiler bug" ::::::=20 BCC: lkp@intel.com CC: oe-kbuild-all@lists.linux.dev In-Reply-To: <20260704222254.914567-1-xmei5@asu.edu> References: <20260704222254.914567-1-xmei5@asu.edu> TO: Xiang Mei TO: Andrew Lunn TO: "David S . Miller" TO: Eric Dumazet TO: Jakub Kicinski TO: Paolo Abeni TO: Roopa Prabhu CC: netdev@vger.kernel.org CC: linux-kernel@vger.kernel.org CC: Petr Machata CC: Andy Roulin CC: David Yang CC: Kees Cook CC: Weiming Shi CC: Xiang Mei Hi Xiang, kernel test robot noticed the following build errors: [auto build test ERROR on net/main] url: https://github.com/intel-lab-lkp/linux/commits/Xiang-Mei/vxlan-vnif= ilter-enforce-exact-length-of-GROUP-GROUP6-attributes/20260705-062358 base: net/main patch link: https://lore.kernel.org/r/20260704222254.914567-1-xmei5%40as= u.edu patch subject: [PATCH net] vxlan: vnifilter: enforce exact length of GROUP/= GROUP6 attributes :::::: branch date: 3 days ago :::::: commit date: 3 days ago config: mips-randconfig-r123-20260705 (https://download.01.org/0day-ci/arch= ive/20260708/202607080424.KSXDsyz9-lkp@intel.com/config) compiler: clang version 23.0.0git (https://github.com/llvm/llvm-project 0a2= fb2a2269da0e2a3e230beb6cad39ca314db33) sparse: v0.6.5-rc1 reproduce (this is a W=3D1 build): (https://download.01.org/0day-ci/archive= /20260708/202607080424.KSXDsyz9-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/202607080424.KSXDsyz9-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,mm/.page_alloc.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./i= nclude/generated/uapi -include include/linux/compiler-version.h -include in= clude/linux/kconfig.h -include include/linux/compiler_types.h -D__KERNEL__ = --target=3Dmipsel-linux-gnu -fintegrated-as -Werror=3Dunknown-warning-optio= n -Werror=3Dignored-optimization-argument -Werror=3Doption-ignored -Werror= =3Dunused-command-line-argument -DVMLINUX_LOAD_ADDRESS=3D0xffffffff80040000= -DLINKER_LOAD_ADDRESS=3D0x80040000 -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=3Dmips3 -Wa,--trap -DTOOLCHAIN_SUPPORTS_VIRT -Iarch/mips/i= nclude/asm/mach-dec -Iarch/mips/include/asm/mach-generic -fno-asynchronous-= unwind-tables -fno-delete-null-pointer-checks -O2 -fstack-protector-strong = -fomit-frame-pointer -ftrivial-auto-var-init=3Dzero -falloc-token-max=3D16 = -fexperimental-late-parse-attributes -fdiagnostics-show-inlining-chain -fst= rict-flex-arrays=3D3 -fno-strict-overflow -fno-stack-check -fno-builtin-wcs= len -Wall -Wextra -Wundef -Werror=3Dimplicit-function-declaration -Werror= =3Dimplicit-int -Werror=3Dreturn-type -Werror=3Dstrict-prototypes -Wno-form= at-security -Wno-trigraphs -Wno-frame-address -Wno-address-of-packed-member= -Wmissing-declarations -Wmissing-prototypes -Wno-format-overflow-non-kprin= tf -Wno-format-truncation-non-kprintf -Wno-default-const-init-unsafe -Wno-t= ype-limits -Wno-pointer-sign -Wcast-function-type -Wno-unterminated-string-= initialization -Wimplicit-fallthrough -Werror=3Ddate-time -Werror=3Dincompa= tible-pointer-types -Wenum-conversion -Wunused -Wmissing-format-attribute -= Wmissing-include-dirs -Wunused-const-variable -Wno-missing-field-initialize= rs -Wno-shift-negative-value -Wno-enum-enum-conversion -Wno-sign-compare -W= no-unused-parameter -DRANDSTRUCT -frandomize-layout-seed-file=3D./scripts/b= asic/randstruct.seed -fno-crash-diagnostics -Wno-error=3Dreturn-type -Wretu= rn-type -funsigned-char -Wundef -falign-functions=3D64 -Imm -Imm -DKBUILD_M= ODFILE=3D\"mm/page-alloc\" -DKBUILD_BASENAME=3D\"page_alloc\" -DKBUILD_MODN= AME=3D\"page_alloc\" -D__KBUILD_MODNAME=3Dpage_alloc -c -o mm/page_alloc.o = mm/page_alloc.c 1. parser at end of file 2. Code generation 3. Running pass 'Function Pass Manager' on module 'mm/page_alloc.c'. 4. Running pass 'Branch Probability Basic Block Placement' on function '= @post_alloc_hook' #0 0x000055c02e08613a llvm::sys::PrintStackTrace(llvm::raw_ostream&, in= t) (clang-23+0x3e6913a) #1 0x000055c02e083ce4 llvm::sys::CleanupOnSignal(unsigned long) (clang-= 23+0x3e66ce4) #2 0x000055c02dfb8cc0 CrashRecoverySignalHandler(int) CrashRecoveryCont= ext.cpp:0:0 #3 0x00007f746a3cddf0 (/lib/x86_64-linux-gnu/libc.so.6+0x3fdf0) #4 0x000055c02d6ace8f llvm::TailDuplicator::shouldTailDuplicate(bool, l= lvm::MachineBasicBlock&) (.part.0) TailDuplicator.cpp:0:0 #5 0x000055c02d3f33ce (anonymous namespace)::MachineBlockPlacement::pre= computeTriangleChains() MachineBlockPlacement.cpp:0:0 #6 0x000055c02d400ffb (anonymous namespace)::MachineBlockPlacement::run= (llvm::MachineFunction&) MachineBlockPlacement.cpp:0:0 #7 0x000055c02d40440c (anonymous namespace)::MachineBlockPlacementLegac= y::runOnMachineFunction(llvm::MachineFunction&) (.part.0) MachineBlockPlace= ment.cpp:0:0 #8 0x000055c02d4466b3 llvm::MachineFunctionPass::runOnFunction(llvm::Fu= nction&) (clang-23+0x32296b3) #9 0x000055c02d994c79 llvm::FPPassManager::runOnFunction(llvm::Function= &) (clang-23+0x3777c79) #10 0x000055c02d9950ac llvm::FPPassManager::runOnModule(llvm::Module&) (= clang-23+0x37780ac) #11 0x000055c02d995c4a (anonymous namespace)::MPPassManager::runOnModule= (llvm::Module&) LegacyPassManager.cpp:0:0 #12 0x000055c02d99631c llvm::legacy::PassManagerImpl::run(llvm::Module&)= (clang-23+0x377931c) #13 0x000055c02e42e1bf (anonymous namespace)::EmitAssemblyHelper::TimeCo= degenPasses(llvm::function_ref) BackendUtil.cpp:0:0 #14 0x000055c02e43f5a4 (anonymous namespace)::EmitAssemblyHelper::emitAs= sembly(clang::BackendAction, std::unique_ptr>, clang::BackendConsumer*) (.constp= rop.0) BackendUtil.cpp:0:0 #15 0x000055c02e43f7f7 clang::emitBackendOutput(clang::CompilerInstance&= , clang::CodeGenOptions&, llvm::StringRef, llvm::Module*, clang::BackendAct= ion, llvm::IntrusiveRefCntPtr, std::unique_ptr>, clang::B= ackendConsumer*) (clang-23+0x42227f7) #16 0x000055c02ea74047 clang::BackendConsumer::HandleTranslationUnit(cla= ng::ASTContext&) (clang-23+0x4857047) #17 0x000055c03046f99c clang::ParseAST(clang::Sema&, bool, bool) (clang-= 23+0x625299c) #18 0x000055c02edd781e clang::FrontendAction::Execute() (clang-23+0x4bba= 81e) #19 0x000055c02ed60b9e clang::CompilerInstance::ExecuteAction(clang::Fro= ntendAction&) (clang-23+0x4b43b9e) #20 0x000055c02eec0dc7 clang::ExecuteCompilerInvocation(clang::CompilerI= nstance*) (clang-23+0x4ca3dc7) #21 0x000055c02b0f4738 cc1_main(llvm::ArrayRef, char const*= , void*) (clang-23+0xed7738) #22 0x000055c02b0ec413 ExecuteCC1Tool(llvm::SmallVectorImpl= &, llvm::ToolContext const&, llvm::IntrusiveRefCntPtr) driver.cpp:0:0 #23 0x000055c02b0ec453 int llvm::function_ref&)>::callback_fn&)>(long, llvm::SmallVecto= rImpl&) driver.cpp:0:0 #24 0x000055c02eaed5f9 void llvm::function_ref::callback_fn>, std::__cxx11::basic_string, std::allocato= r>*, bool*) const::'lambda'()>(long) Job.cpp:0:0 #25 0x000055c02dfb9023 llvm::CrashRecoveryContext::RunSafely(llvm::funct= ion_ref) (clang-23+0x3d9c023) #26 0x000055c02eaeeb4c clang::driver::CC1Command::Execute(llvm::ArrayRef= >, std::__cxx11::basic_string, std::allocator>*, bool*) const (.part.0) Job.cpp:0:0 #27 0x000055c02eaaa228 clang::driver::Compilation::ExecuteCommand(clang:= :driver::Command const&, clang::driver::Command const*&, bool) const (clang= -23+0x488d228) #28 0x000055c02eaab1c2 clang::driver::Compilation::ExecuteJobs(clang::dr= iver::JobList const&, llvm::SmallVectorImpl>&, bool) const (clang-23+0x488e1c2) #29 0x000055c02eabea0c clang::driver::Driver::ExecuteCompilation(clang::= driver::Compilation&, llvm::SmallVectorImpl>&) (clang-23+0x48a1a0c) #30 0x000055c02b0f10d2 clang_main(int, char**, llvm::ToolContext const&)= (clang-23+0xed40d2) #31 0x000055c02b005df9 main (clang-23+0xde8df9) #32 0x00007f746a3b7ca8 (/lib/x86_64-linux-gnu/libc.so.6+0x29ca8) #33 0x00007f746a3b7d65 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.= 6+0x29d65) #34 0x000055c02b0ebe71 _start (clang-23+0xecee71) clang: error: clang frontend command failed due to signal (use -v to see= invocation) >> /bin/bash: line 1: 2718805 Segmentation fault clang -Wp,-MMD,mm/.pa= ge_alloc.o.d -nostdinc -Iarch/mips/include -I./arch/mips/include/generated = -Iinclude -I./include -Iarch/mips/include/uapi -I./arch/mips/include/genera= ted/uapi -Iinclude/uapi -I./include/generated/uapi -include include/linux/c= ompiler-version.h -include include/linux/kconfig.h -include include/linux/c= ompiler_types.h -D__KERNEL__ --target=3Dmipsel-linux-gnu -fintegrated-as -W= error=3Dunknown-warning-option -Werror=3Dignored-optimization-argument -Wer= ror=3Doption-ignored -Werror=3Dunused-command-line-argument -DVMLINUX_LOAD_= ADDRESS=3D0xffffffff80040000 -DLINKER_LOAD_ADDRESS=3D0x80040000 -DDATAOFFSE= T=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-abicalls -fno-pic -pipe -msoft-float -Wa,-msoft-float= -ffreestanding -EL -fno-stack-check -march=3Dmips3 -Wa,--trap -DTOOLCHAIN_= SUPPORTS_VIRT -Iarch/mips/include/asm/mach-dec -Iarch/mips/include/asm/mach= -generic -fno-asynchronous-unwind-tables -fno-delete-null-pointer-checks -O= 2 -fstack-protector-strong -fomit-frame-pointer -ftrivial-auto-var-init=3Dz= ero -falloc-token-max=3D16 -fexperimental-late-parse-attributes -fdiagnosti= cs-show-inlining-chain -fstrict-flex-arrays=3D3 -fno-strict-overflow -fno-s= tack-check -fno-builtin-wcslen -Wall -Wextra -Wundef -Werror=3Dimplicit-fun= ction-declaration -Werror=3Dimplicit-int -Werror=3Dreturn-type -Werror=3Dst= rict-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=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-shift-negative-value -Wno-enum-enum-conver= sion -Wno-sign-compare -Wno-unused-parameter -DRANDSTRUCT -frandomize-layou= t-seed-file=3D./scripts/basic/randstruct.seed -fno-crash-diagnostics -Wno-e= rror=3Dreturn-type -Wreturn-type -funsigned-char -Wundef -falign-functions= =3D64 -Imm -Imm -DKBUILD_MODFILE=3D'"mm/page-alloc"' -DKBUILD_BASENAME=3D'"= page_alloc"' -DKBUILD_MODNAME=3D'"page_alloc"' -D__KBUILD_MODNAME=3Dpage_al= loc -c -o mm/page_alloc.o mm/page_alloc.c -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki