linux-kernel - Re: [PATCH v3 2/2] KVM: x86/mmu: Recover TDP MMU NX huge pages using MMU read lock

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Message-ID: <202409090949.xuOxMsJ2-lkp@intel.com>
Date: Mon, 9 Sep 2024 07:29:55 +0800
From: kernel test robot <lkp@...el.com>
To: Vipin Sharma <vipinsh@...gle.com>, seanjc@...gle.com,
	pbonzini@...hat.com, dmatlack@...gle.com
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
	kvm@...r.kernel.org, linux-kernel@...r.kernel.org,
	Vipin Sharma <vipinsh@...gle.com>
Subject: Re: [PATCH v3 2/2] KVM: x86/mmu: Recover TDP MMU NX huge pages using
 MMU read lock

Hi Vipin,

kernel test robot noticed the following build errors:

[auto build test ERROR on 332d2c1d713e232e163386c35a3ba0c1b90df83f]

url:    https://github.com/intel-lab-lkp/linux/commits/Vipin-Sharma/KVM-x86-mmu-Track-TDP-MMU-NX-huge-pages-separately/20240907-044800
base:   332d2c1d713e232e163386c35a3ba0c1b90df83f
patch link:    https://lore.kernel.org/r/20240906204515.3276696-3-vipinsh%40google.com
patch subject: [PATCH v3 2/2] KVM: x86/mmu: Recover TDP MMU NX huge pages using MMU read lock
config: i386-randconfig-005-20240908 (https://download.01.org/0day-ci/archive/20240909/202409090949.xuOxMsJ2-lkp@intel.com/config)
compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240909/202409090949.xuOxMsJ2-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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202409090949.xuOxMsJ2-lkp@intel.com/

All errors (new ones prefixed by >>):

>> ld.lld: error: undefined symbol: kvm_tdp_mmu_zap_possible_nx_huge_page
   >>> referenced by mmu.c:7415 (arch/x86/kvm/mmu/mmu.c:7415)
   >>>               arch/x86/kvm/mmu/mmu.o:(kvm_recover_nx_huge_pages) in archive vmlinux.a

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki