linux-kernel - Re: [PATCH] x86/tsc: Disable clocksource watchdog for TSC on recent UV

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Message-ID: <202507311627.rt0PViwZ-lkp@intel.com>
Date: Thu, 31 Jul 2025 17:01:35 +0800
From: kernel test robot <lkp@...el.com>
To: Dimitri Sivanich <sivanich@....com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
	Thomas Gleixner <tglx@...utronix.de>,
	Jonathan Corbet <corbet@....net>, Steve Wahl <steve.wahl@....com>,
	Justin Ernst <justin.ernst@....com>,
	Kyle Meyer <kyle.meyer@....com>,
	Russ Anderson <russ.anderson@....com>,
	Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
	Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org,
	"H. Peter Anvin" <hpa@...or.com>
Subject: Re: [PATCH] x86/tsc: Disable clocksource watchdog for TSC on recent
 UV

Hi Dimitri,

kernel test robot noticed the following build errors:

[auto build test ERROR on tip/x86/core]
[also build test ERROR on tip/master linus/master v6.16 next-20250731]
[cannot apply to tip/auto-latest]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Dimitri-Sivanich/x86-tsc-Disable-clocksource-watchdog-for-TSC-on-recent-UV/20250731-053059
base:   tip/x86/core
patch link:    https://lore.kernel.org/r/aIqKYdvlKlBlSoQK%40hpe.com
patch subject: [PATCH] x86/tsc: Disable clocksource watchdog for TSC on recent UV
config: x86_64-allnoconfig (https://download.01.org/0day-ci/archive/20250731/202507311627.rt0PViwZ-lkp@intel.com/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250731/202507311627.rt0PViwZ-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/202507311627.rt0PViwZ-lkp@intel.com/

All errors (new ones prefixed by >>):

>> ld.lld: error: undefined symbol: __uv_cpu_info
   >>> referenced by tsc.c
   >>>               arch/x86/kernel/tsc.o:(check_system_tsc_reliable) in archive vmlinux.a

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