From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.7]) (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 585FA38F624 for ; Fri, 17 Apr 2026 11:29:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.7 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776425376; cv=none; b=nC6ekVGObUReF52svatDjyAvvYv09x6fqVq0lMq8v0NSH4oYGXKVrEqF+uHGp3tENmE1xDJOP4cNJeGBhNTB3ZhniO4Yw/tJA1Nolzm6BVxr8UNDZ9+7OG0xCpE7l/y3nNDZeFAjHmPcx/so1b+TCy36ChvnHxI958GrRJ2ywLU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776425376; c=relaxed/simple; bh=wyuVYcjmg91Rn13yCrOJS5SHwozCRsw+vORjRS6sRuc=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type: Content-Disposition; b=QxEdroBXexK58/k0f9qabDKNbHaZ2oBrZ7eOzArJHKmz/K/LEZSJUiXrzUQ2gGxGmxv1w3z0BYa+rZrfh5FBHrHeICuxRvD5Ff6cnRkonWMqW20H9xs4bnxFdnShL/SR70aWMNLSLM2bPoT3+cXLo3E1b8qU0UA7F8+IHjGJOKg= 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=AoFa59zf; arc=none smtp.client-ip=192.198.163.7 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="AoFa59zf" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1776425374; x=1807961374; h=date:from:to:cc:subject:message-id:mime-version: content-transfer-encoding; bh=wyuVYcjmg91Rn13yCrOJS5SHwozCRsw+vORjRS6sRuc=; b=AoFa59zfJ2EmNHo6TxjE2LivTBvlfAwRKzBUDu/adE8uNVqFjNFn8JWW WaPj10ol29eD3yVPAp7oJHZcZyxthPzzwp9z1FFCwKaK5uM90VRSXWoFM 7bJwoxlkpjLg6He9QqEQ8ajlNOdSF9Y+49cUpOxU3ESwH4a94HgvBJ4b/ R8yTiFRiU2bEDycwRxvi/eKoDrIbZckgFe+PoJPPnI97dlBd6+C4sa4Sb CJtpU8P9WQVjWkTfvBbWZf62+WX5tTeCLtc4/w1qABfWaDqyqy5+8VA1s lsYkTuyAaN/1cpXtq07VK6ySnLy4mm/y9UwxfXusXkNTbhMpIFGYZvdi/ g==; X-CSE-ConnectionGUID: dvMeHQZ8T0yFUs7WvYnI5Q== X-CSE-MsgGUID: GfrmxOdVS3SAc1nYCdgKPg== X-IronPort-AV: E=McAfee;i="6800,10657,11761"; a="102901214" X-IronPort-AV: E=Sophos;i="6.23,184,1770624000"; d="scan'208";a="102901214" Received: from fmviesa002.fm.intel.com ([10.60.135.142]) by fmvoesa101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Apr 2026 04:29:34 -0700 X-CSE-ConnectionGUID: u3h8uaTyQ26jP69kf+w37Q== X-CSE-MsgGUID: PrWOP4I3S9a0zOSZkT3P6g== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,184,1770624000"; d="scan'208";a="254235059" Received: from lkp-server01.sh.intel.com (HELO 7e48d0ff8e22) ([10.239.97.150]) by fmviesa002.fm.intel.com with ESMTP; 17 Apr 2026 04:29:33 -0700 Received: from kbuild by 7e48d0ff8e22 with local (Exim 4.98.2) (envelope-from ) id 1wDhO6-000000000ID-3WK8; Fri, 17 Apr 2026 11:29:30 +0000 Date: Fri, 17 Apr 2026 19:28:39 +0800 From: kernel test robot To: oe-kbuild@lists.linux.dev Cc: lkp@intel.com Subject: Re: [PATCH] gcov: use atomic counter updates to fix concurrent access crashes Message-ID: <202604171926.AK0Gl5MD-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=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit :::::: :::::: Manual check reason: "only suspicious fbc files changed" :::::: BCC: lkp@intel.com CC: oe-kbuild-all@lists.linux.dev In-Reply-To: <20260402141831.1437357-2-khorenko@virtuozzo.com> References: <20260402141831.1437357-2-khorenko@virtuozzo.com> TO: Konstantin Khorenko TO: Peter Oberparleiter TO: Mikhail Zaslonko TO: Nathan Chancellor TO: Nicolas Schier CC: Masahiro Yamada CC: "Thomas Weißschuh" CC: Arnd Bergmann CC: Steffen Klassert CC: Herbert Xu CC: linux-kbuild@vger.kernel.org CC: linux-kernel@vger.kernel.org CC: netdev@vger.kernel.org CC: Konstantin Khorenko CC: Pavel Tikhomirov CC: Vasileios Almpanis CC: Jakub Kicinski Hi Konstantin, kernel test robot noticed the following build errors: [auto build test ERROR on soc/for-next] [also build test ERROR on v7.0 next-20260416] [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/Konstantin-Khorenko/gcov-use-atomic-counter-updates-to-fix-concurrent-access-crashes/20260411-133428 base: https://git.kernel.org/pub/scm/linux/kernel/git/soc/soc.git for-next patch link: https://lore.kernel.org/r/20260402141831.1437357-2-khorenko%40virtuozzo.com patch subject: [PATCH] gcov: use atomic counter updates to fix concurrent access crashes :::::: branch date: 6 days ago :::::: commit date: 6 days ago config: i386-buildonly-randconfig-005-20260417 (https://download.01.org/0day-ci/archive/20260417/202604171926.AK0Gl5MD-lkp@intel.com/config) compiler: gcc-14 (Debian 14.2.0-19) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260417/202604171926.AK0Gl5MD-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 | Closes: https://lore.kernel.org/r/202604171926.AK0Gl5MD-lkp@intel.com/ All errors (new ones prefixed by >>): ld: kernel/trace/ftrace.o: in function `symbols_cmp': >> kernel/trace/ftrace.c:9213:(.text+0x18): undefined reference to `__atomic_fetch_add_8' >> ld: kernel/trace/ftrace.c:9217:(.text+0x36): undefined reference to `__atomic_fetch_add_8' ld: kernel/trace/ftrace.o: in function `ftrace_pid_release': kernel/trace/ftrace.c:8961:(.text+0x5c): undefined reference to `__atomic_fetch_add_8' ld: kernel/trace/ftrace.c:8964:(.text+0x7a): undefined reference to `__atomic_fetch_add_8' ld: kernel/trace/ftrace.c:8966:(.text+0x98): undefined reference to `__atomic_fetch_add_8' ld: kernel/trace/ftrace.o:kernel/trace/ftrace.c:8852: more undefined references to `__atomic_fetch_add_8' follow vim +9213 kernel/trace/ftrace.c b0fc494fae96a7 Steven Rostedt 2008-05-12 9211 bed0d9a50dacee Jiri Olsa 2022-05-10 9212 static int symbols_cmp(const void *a, const void *b) bed0d9a50dacee Jiri Olsa 2022-05-10 @9213 { bed0d9a50dacee Jiri Olsa 2022-05-10 9214 const char **str_a = (const char **) a; bed0d9a50dacee Jiri Olsa 2022-05-10 9215 const char **str_b = (const char **) b; bed0d9a50dacee Jiri Olsa 2022-05-10 9216 bed0d9a50dacee Jiri Olsa 2022-05-10 @9217 return strcmp(*str_a, *str_b); bed0d9a50dacee Jiri Olsa 2022-05-10 9218 } bed0d9a50dacee Jiri Olsa 2022-05-10 9219 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki