Received: by 2002:a89:48b:0:b0:1f5:f2ab:c469 with SMTP id a11csp682586lqd; Wed, 24 Apr 2024 13:41:41 -0700 (PDT) X-Forwarded-Encrypted: i=3; AJvYcCUu4DYQZRrPXWTFof4yqSo0uHbq6miq58CSDyJOW0YGzJPcAgp9z+HDQOfBKLp8+eBEoE02M9WVbXlnT/SHd4II29uBG5tWZKDrnyg4eg== X-Google-Smtp-Source: AGHT+IEAIFO9/hGpkOuAv/9S+PKZpX4QBsJuCNKzNtFHheioWKTkCcBnjBgj+ZSFFCAml4pxMY2G X-Received: by 2002:a17:90a:bc89:b0:2a2:e56a:ca8f with SMTP id x9-20020a17090abc8900b002a2e56aca8fmr3977309pjr.42.1713991300961; Wed, 24 Apr 2024 13:41:40 -0700 (PDT) ARC-Seal: i=2; a=rsa-sha256; t=1713991300; cv=pass; d=google.com; s=arc-20160816; b=YQ2rezEg9y2pxF5RIpXfeWzJmvjJQ1Ss5HdT30MraBJxedbdc/H76iS1ocLkSpyZwK z0MTTf13nqRYoI7VGPuu10qFeZFHYg8paot2scKj1eYarahrQG06BHOFf6cL/0Vx6tQ2 aMnBO6ZnxzPcGVbZ1/YgWL0NzzOs06khOIqZyWXG8saPqlkupe53L1B7oFAkb2EofUwg CCVEMYBEGxqZ1Pi2fkTNXbxkIH6ijYgFY1+/hFiTI4CH+LnSR7vGy/ZoVBtHCxscoyti FQBrQ4MGDBHP3QXxSt3GlJg+EMzdL1UjG6dZXSDrSLbQbIPqFDhV7rt/G/dorT4uDcmv 3I+A== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=content-transfer-encoding:in-reply-to:autocrypt:from :content-language:references:cc:to:subject:user-agent:mime-version :list-unsubscribe:list-subscribe:list-id:precedence:date:message-id :dkim-signature; bh=ULuk3Ap5R9A2e57uf/v0M/WNA4x77X4/Sfp7gFkkeWI=; fh=tf89UzXBg78sFCzx5+BodUVTOUlcu3n5cmXaC+8j0/s=; b=QE3XOCGSlusEqFRP2xBzDH6ZmW4BGJLBrfZaq9CuAv3oE85j3XX7s5K8Q4NAmZMx1x 9cYeH0ek1MU2wj7K/fWNGiImpjHyTmagrnA0mAzw757w8Fy1tP+/C4UNUe+qHzFyyiEN KBfLeZ8yUIntrxoycY4Lp4nCKEPq3hunKb5Qck/l0kcmbQU+5vxSXb21YJBKLLm577Zd M+/tH0z9p5Uf0w9W5BqH5yNJPgh3yCqtjpxokAkmiIiY8Qea97oXQDRb5GN4KZT3YBzo gTN+085O5cOp8GfG3+UkzR8d3kqg2sjR87dXk+tinWjTK1GYOTsrebuU5+x4cA+pUJpn KM9A==; dara=google.com ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@intel.com header.s=Intel header.b=YO0w8ysn; arc=pass (i=1 spf=pass spfdomain=intel.com dkim=pass dkdomain=intel.com dmarc=pass fromdomain=intel.com); spf=pass (google.com: domain of linux-kernel+bounces-157677-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.48.161 as permitted sender) smtp.mailfrom="linux-kernel+bounces-157677-linux.lists.archive=gmail.com@vger.kernel.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=intel.com Return-Path: Received: from sy.mirrors.kernel.org (sy.mirrors.kernel.org. [147.75.48.161]) by mx.google.com with ESMTPS id mq18-20020a17090b381200b002ae0bb781bbsi5441926pjb.9.2024.04.24.13.41.40 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 24 Apr 2024 13:41:40 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel+bounces-157677-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.48.161 as permitted sender) client-ip=147.75.48.161; Authentication-Results: mx.google.com; dkim=pass header.i=@intel.com header.s=Intel header.b=YO0w8ysn; arc=pass (i=1 spf=pass spfdomain=intel.com dkim=pass dkdomain=intel.com dmarc=pass fromdomain=intel.com); spf=pass (google.com: domain of linux-kernel+bounces-157677-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.48.161 as permitted sender) smtp.mailfrom="linux-kernel+bounces-157677-linux.lists.archive=gmail.com@vger.kernel.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sy.mirrors.kernel.org (Postfix) with ESMTPS id A540FB26716 for ; Wed, 24 Apr 2024 20:19:25 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id B6BF813BC19; Wed, 24 Apr 2024 20:19:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="YO0w8ysn" Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.16]) (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 E8B6B757FD for ; Wed, 24 Apr 2024 20:19:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.16 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713989949; cv=none; b=pzNBNgXSNjFgIukoUFu+XvssasGicVrrnjOArYZ7k4VmmkSoOmcB+XPBw+GYAQH45iQqXk7PG1D0zV7uEGZqA6fxK3iFjo22JL42f1m4zc9uCDweSGbPt0dXCh/W0tMDjXqGuD/lvOew5rZkPwVZet7ALnRbGaWJsNAwTGJdvAA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713989949; c=relaxed/simple; bh=fENe2p86CVTfhHSogOlhjChEyezkm6BwM9WGHl+2LPo=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=GwBdRjjLUE/jOw6xAyUoGDiNgzT9YLBhuBCsK+gF9KJgW/oQzAZW9GSaaIRAfEAc3GmLQIstDZZB3XClZVqCSL5fPx6uR5jP+UG3bMx/FfsakIKzssArkbr1+mdTnF0Q3fxumy1/cPJTTSQRVTO38zHMiHvkn2zqcJQN7xuXFSI= 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=YO0w8ysn; arc=none smtp.client-ip=198.175.65.16 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 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1713989948; x=1745525948; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to:content-transfer-encoding; bh=fENe2p86CVTfhHSogOlhjChEyezkm6BwM9WGHl+2LPo=; b=YO0w8ysnQUsBSrenZ4v+J3aJNvtUvBXFKgeFPKLseIBDOs2z1SUcgYjW DDyucz9tJT0Gne8YjEUDl3VUKJh+FdyA0QjT5Gw4C2sj+7bU95eMvAmmM Dqs6T4ij0nBWxE3WGVB0aFq92OC00Qfn+8bdbzx1bYCnKZ/TCLfH6aoJE BTQQPgRQj5jyE8Zyyl2B0XAFXg1NfZmwqkmEbIlaRw5vKZJPQk7fpxWjB /Sv8lISCR31hXD7OUOyJnVqpG64J7m2CGI7/UTgvna+kbpyk4NrsJ6sxZ 5ClhDgfemLqUrObikUA8oH/wU8MV1zhNXN3MfDq7jSY3BFn+7pWDCjxJm Q==; X-CSE-ConnectionGUID: jL1vPxm4TLCf2BHFENyCGQ== X-CSE-MsgGUID: TBq9bySbSiqyBBnEhlWG5g== X-IronPort-AV: E=McAfee;i="6600,9927,11054"; a="9768005" X-IronPort-AV: E=Sophos;i="6.07,227,1708416000"; d="scan'208";a="9768005" Received: from fmviesa009.fm.intel.com ([10.60.135.149]) by orvoesa108.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Apr 2024 13:19:07 -0700 X-CSE-ConnectionGUID: 73Xg5pLxR1qUPEu66sQA9g== X-CSE-MsgGUID: BhR63ib8Rvmb/uLiSomujw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.07,227,1708416000"; d="scan'208";a="24832587" Received: from ttiasha-mobl1.amr.corp.intel.com (HELO [10.209.122.5]) ([10.209.122.5]) by fmviesa009-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Apr 2024 13:19:06 -0700 Message-ID: <2e8685d9-d13d-43cd-bacb-4a60893b1d47@intel.com> Date: Wed, 24 Apr 2024 13:19:05 -0700 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: Intermittent Qemu boot hang/regression traced back to INT 0x80 changes To: Paul Gortmaker , Thomas Gleixner , "Kirill A. Shutemov" , Dave Hansen , Borislav Petkov Cc: x86@kernel.org, linux-kernel@vger.kernel.org, Richard Purdie References: <20240424185806.GB101235@kernel.org> Content-Language: en-US From: Dave Hansen Autocrypt: addr=dave.hansen@intel.com; keydata= xsFNBE6HMP0BEADIMA3XYkQfF3dwHlj58Yjsc4E5y5G67cfbt8dvaUq2fx1lR0K9h1bOI6fC oAiUXvGAOxPDsB/P6UEOISPpLl5IuYsSwAeZGkdQ5g6m1xq7AlDJQZddhr/1DC/nMVa/2BoY 2UnKuZuSBu7lgOE193+7Uks3416N2hTkyKUSNkduyoZ9F5twiBhxPJwPtn/wnch6n5RsoXsb ygOEDxLEsSk/7eyFycjE+btUtAWZtx+HseyaGfqkZK0Z9bT1lsaHecmB203xShwCPT49Blxz VOab8668QpaEOdLGhtvrVYVK7x4skyT3nGWcgDCl5/Vp3TWA4K+IofwvXzX2ON/Mj7aQwf5W iC+3nWC7q0uxKwwsddJ0Nu+dpA/UORQWa1NiAftEoSpk5+nUUi0WE+5DRm0H+TXKBWMGNCFn c6+EKg5zQaa8KqymHcOrSXNPmzJuXvDQ8uj2J8XuzCZfK4uy1+YdIr0yyEMI7mdh4KX50LO1 pmowEqDh7dLShTOif/7UtQYrzYq9cPnjU2ZW4qd5Qz2joSGTG9eCXLz5PRe5SqHxv6ljk8mb ApNuY7bOXO/A7T2j5RwXIlcmssqIjBcxsRRoIbpCwWWGjkYjzYCjgsNFL6rt4OL11OUF37wL QcTl7fbCGv53KfKPdYD5hcbguLKi/aCccJK18ZwNjFhqr4MliQARAQABzUVEYXZpZCBDaHJp c3RvcGhlciBIYW5zZW4gKEludGVsIFdvcmsgQWRkcmVzcykgPGRhdmUuaGFuc2VuQGludGVs LmNvbT7CwXgEEwECACIFAlQ+9J0CGwMGCwkIBwMCBhUIAgkKCwQWAgMBAh4BAheAAAoJEGg1 lTBwyZKwLZUP/0dnbhDc229u2u6WtK1s1cSd9WsflGXGagkR6liJ4um3XCfYWDHvIdkHYC1t MNcVHFBwmQkawxsYvgO8kXT3SaFZe4ISfB4K4CL2qp4JO+nJdlFUbZI7cz/Td9z8nHjMcWYF IQuTsWOLs/LBMTs+ANumibtw6UkiGVD3dfHJAOPNApjVr+M0P/lVmTeP8w0uVcd2syiaU5jB aht9CYATn+ytFGWZnBEEQFnqcibIaOrmoBLu2b3fKJEd8Jp7NHDSIdrvrMjYynmc6sZKUqH2 I1qOevaa8jUg7wlLJAWGfIqnu85kkqrVOkbNbk4TPub7VOqA6qG5GCNEIv6ZY7HLYd/vAkVY E8Plzq/NwLAuOWxvGrOl7OPuwVeR4hBDfcrNb990MFPpjGgACzAZyjdmYoMu8j3/MAEW4P0z F5+EYJAOZ+z212y1pchNNauehORXgjrNKsZwxwKpPY9qb84E3O9KYpwfATsqOoQ6tTgr+1BR CCwP712H+E9U5HJ0iibN/CDZFVPL1bRerHziuwuQuvE0qWg0+0SChFe9oq0KAwEkVs6ZDMB2 P16MieEEQ6StQRlvy2YBv80L1TMl3T90Bo1UUn6ARXEpcbFE0/aORH/jEXcRteb+vuik5UGY 5TsyLYdPur3TXm7XDBdmmyQVJjnJKYK9AQxj95KlXLVO38lczsFNBFRjzmoBEACyAxbvUEhd GDGNg0JhDdezyTdN8C9BFsdxyTLnSH31NRiyp1QtuxvcqGZjb2trDVuCbIzRrgMZLVgo3upr MIOx1CXEgmn23Zhh0EpdVHM8IKx9Z7V0r+rrpRWFE8/wQZngKYVi49PGoZj50ZEifEJ5qn/H Nsp2+Y+bTUjDdgWMATg9DiFMyv8fvoqgNsNyrrZTnSgoLzdxr89FGHZCoSoAK8gfgFHuO54B lI8QOfPDG9WDPJ66HCodjTlBEr/Cwq6GruxS5i2Y33YVqxvFvDa1tUtl+iJ2SWKS9kCai2DR 3BwVONJEYSDQaven/EHMlY1q8Vln3lGPsS11vSUK3QcNJjmrgYxH5KsVsf6PNRj9mp8Z1kIG qjRx08+nnyStWC0gZH6NrYyS9rpqH3j+hA2WcI7De51L4Rv9pFwzp161mvtc6eC/GxaiUGuH BNAVP0PY0fqvIC68p3rLIAW3f97uv4ce2RSQ7LbsPsimOeCo/5vgS6YQsj83E+AipPr09Caj 0hloj+hFoqiticNpmsxdWKoOsV0PftcQvBCCYuhKbZV9s5hjt9qn8CE86A5g5KqDf83Fxqm/ vXKgHNFHE5zgXGZnrmaf6resQzbvJHO0Fb0CcIohzrpPaL3YepcLDoCCgElGMGQjdCcSQ+Ci FCRl0Bvyj1YZUql+ZkptgGjikQARAQABwsFfBBgBAgAJBQJUY85qAhsMAAoJEGg1lTBwyZKw l4IQAIKHs/9po4spZDFyfDjunimEhVHqlUt7ggR1Hsl/tkvTSze8pI1P6dGp2XW6AnH1iayn yRcoyT0ZJ+Zmm4xAH1zqKjWplzqdb/dO28qk0bPso8+1oPO8oDhLm1+tY+cOvufXkBTm+whm +AyNTjaCRt6aSMnA/QHVGSJ8grrTJCoACVNhnXg/R0g90g8iV8Q+IBZyDkG0tBThaDdw1B2l asInUTeb9EiVfL/Zjdg5VWiF9LL7iS+9hTeVdR09vThQ/DhVbCNxVk+DtyBHsjOKifrVsYep WpRGBIAu3bK8eXtyvrw1igWTNs2wazJ71+0z2jMzbclKAyRHKU9JdN6Hkkgr2nPb561yjcB8 sIq1pFXKyO+nKy6SZYxOvHxCcjk2fkw6UmPU6/j/nQlj2lfOAgNVKuDLothIxzi8pndB8Jju KktE5HJqUUMXePkAYIxEQ0mMc8Po7tuXdejgPMwgP7x65xtfEqI0RuzbUioFltsp1jUaRwQZ MTsCeQDdjpgHsj+P2ZDeEKCbma4m6Ez/YWs4+zDm1X8uZDkZcfQlD9NldbKDJEXLIjYWo1PH hYepSffIWPyvBMBTW2W5FRjJ4vLRrJSUoEfJuPQ3vW9Y73foyo/qFoURHO48AinGPZ7PC7TF vUaNOTjKedrqHkaOcqB185ahG2had0xnFsDPlx5y In-Reply-To: <20240424185806.GB101235@kernel.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit One other thing... Is this using QEMU's TCG code generator? We have seen some weird bugs with it in the past. Or are you running under KVM? Your qemu command-line made me think it's TCG and not KVM.