From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id AAC1BC77B61 for ; Mon, 27 Mar 2023 06:18:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232027AbjC0GSR (ORCPT ); Mon, 27 Mar 2023 02:18:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39488 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231950AbjC0GSL (ORCPT ); Mon, 27 Mar 2023 02:18:11 -0400 Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9659C46A4 for ; Sun, 26 Mar 2023 23:18:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1679897886; x=1711433886; h=date:from:to:cc:subject:message-id:mime-version; bh=6o0fKQmvkTDxMY4zxOWWNTnYAsFjBoC1E2c2rziwavI=; b=CGrxKUbN83X80XZyVNX6qfQcT5k4XW4eLdPwE/5yNcdyGErw3siuWZp6 dOKM+/9UEQRN1HXqTMIUM3nX53+xKQszNR7rfmJ8DXjLmty3fjPovun1T 3lNliE56nbspWWgjRGY3egyuVK7sNES8q0HknLPTFkeUTJdC7L8xBsRru YBiOGpeoJmP7DSwhoIyQgsQJLP5klnRja6iIAS8XjZ4BGZ6jKGDox9qQG xsPKKOqEArjQeknYKuF7t29U+hp2rQfTvIAcQNy2smSInGgK9g8eoZRiQ ryWXacu3Rz56n8hLnda9d7vhTCljXWPnd1OeuAOqWVIGN11L8x5uoJZcT A==; X-IronPort-AV: E=McAfee;i="6600,9927,10661"; a="342589953" X-IronPort-AV: E=Sophos;i="5.98,293,1673942400"; d="scan'208";a="342589953" Received: from orsmga006.jf.intel.com ([10.7.209.51]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Mar 2023 23:18:05 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10661"; a="660732137" X-IronPort-AV: E=Sophos;i="5.98,293,1673942400"; d="scan'208";a="660732137" Received: from lkp-server01.sh.intel.com (HELO b613635ddfff) ([10.239.97.150]) by orsmga006.jf.intel.com with ESMTP; 26 Mar 2023 23:18:05 -0700 Received: from kbuild by b613635ddfff with local (Exim 4.96) (envelope-from ) id 1pggBB-000HaN-0h; Mon, 27 Mar 2023 06:18:05 +0000 Date: Mon, 27 Mar 2023 14:17:25 +0800 From: kernel test robot To: Peter Zijlstra Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org Subject: vmlinux.o: warning: objtool: xenpv_exc_double_fault+0xd: unreachable instruction Message-ID: <202303271446.1FSJkyat-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Peter, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 197b6b60ae7bc51dd0814953c562833143b292aa commit: 443ed4c302fff6a26af980300463343a7adc9ee8 objtool: mem*() are not uaccess safe date: 6 weeks ago config: x86_64-randconfig-r035-20230327 (https://download.01.org/0day-ci/archive/20230327/202303271446.1FSJkyat-lkp@intel.com/config) compiler: gcc-11 (Debian 11.3.0-8) 11.3.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=443ed4c302fff6a26af980300463343a7adc9ee8 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 443ed4c302fff6a26af980300463343a7adc9ee8 # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=x86_64 olddefconfig make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot | Link: https://lore.kernel.org/oe-kbuild-all/202303271446.1FSJkyat-lkp@intel.com/ All warnings (new ones prefixed by >>): >> vmlinux.o: warning: objtool: xenpv_exc_double_fault+0xd: unreachable instruction objdump-func vmlinux.o xenpv_exc_double_fault: 0000 0000000000001680 : 0000 1680: f3 0f 1e fa endbr64 0004 1684: 55 push %rbp 0005 1685: 48 89 e5 mov %rsp,%rbp 0008 1688: e8 00 00 00 00 call 168d 1689: R_X86_64_PLT32 exc_double_fault-0x4 000d 168d: 5d pop %rbp 000e 168e: c3 ret 000f 168f: 66 66 2e 0f 1f 84 00 00 00 00 00 data16 cs nopw 0x0(%rax,%rax,1) 001a 169a: 66 66 2e 0f 1f 84 00 00 00 00 00 data16 cs nopw 0x0(%rax,%rax,1) 0025 16a5: 66 66 2e 0f 1f 84 00 00 00 00 00 data16 cs nopw 0x0(%rax,%rax,1) 0030 16b0: 66 66 2e 0f 1f 84 00 00 00 00 00 data16 cs nopw 0x0(%rax,%rax,1) 003b 16bb: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests