Received: by 2002:a89:48b:0:b0:1f5:f2ab:c469 with SMTP id a11csp1319205lqd; Thu, 25 Apr 2024 11:44:31 -0700 (PDT) X-Forwarded-Encrypted: i=3; AJvYcCVPwkJRfc6m5MnlIQDhw+7ygmKK2xwfxXAvW10nFUX+wdyZ7qlsrFb0q9SPaGIIhm7EJEWKOJM5j9GcvVG3M7bToZJCP4zdOX6pVPKYZg== X-Google-Smtp-Source: AGHT+IGlu69RssdE+kYv8KuSD0KjuhKDslhyoQndPvJKN2R4SPqXvG1Ltwl3J41uwmJ7N963TOqQ X-Received: by 2002:a19:8c4a:0:b0:518:bd38:1ed3 with SMTP id i10-20020a198c4a000000b00518bd381ed3mr126879lfj.53.1714070671063; Thu, 25 Apr 2024 11:44:31 -0700 (PDT) ARC-Seal: i=2; a=rsa-sha256; t=1714070671; cv=pass; d=google.com; s=arc-20160816; b=DbEk6aacpXsjRRNtZSMkKY/5EbUIYsDs9oNlxkVu6U2dN2wp7Sm7phOtmrCma51gjD mKywXifmXoFuzWokj5U1JRXvcYwZOnF9qurotCyCQ1GvUcCjx259c8ZbV86mXy9b/4T2 KfknqMqt9YD92fxrJful53IW/QDEF7ZevBHHhpFAcIAwQJH8TGciWBlXazEQP9ywcG02 eePzR2kEsIfSDAVQVJdgKmWgsp/ov8x8TvcuQgBxKmSq/7C7eMvfAHyU9IQefxmgoxTy WS8fbqBc+oEBTcBdnWljZrYcIbZqmgfhTfvGVl224qBXfP89ww6CklAoTQwbphD3VKYG /SXg== 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=oR8lQMyNku3f3+yUZQv/jGhViksjPX7rNcjsC+n7htk=; fh=tf89UzXBg78sFCzx5+BodUVTOUlcu3n5cmXaC+8j0/s=; b=he6xepytuRD0owW37ipkCf/qlQYMuanDlb2anSZQrz3gxOGWD+gGc+K2UsK7iFr2B5 RjvOn1tJRzgolKfveLCVZhRAg2a1gFLPq27CtY1l0vqEShBAtjzV8DkrF+ojWsm10ajH dKqKeJpBco+RoYsQUi1pMTnb2U2TrEh69ztEDIBCWhi2XjxBJiFKpu00WOxCUCXpe3AJ VdG1B6aGekThzCbad3/kabMHvaTYIpkQOwxyiwXbE87Ue23RoJsmaLz+4D2oupjvzSSG SDxX50xCg2HcTaLcnXXYFdKMQSVvI4yxICBABlRGgv+pQJdbc0CaGk/68BCZafQMCfsN 0ZQA==; dara=google.com ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@intel.com header.s=Intel header.b=EU4Fq4X8; 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-159028-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:4601:e00::3 as permitted sender) smtp.mailfrom="linux-kernel+bounces-159028-linux.lists.archive=gmail.com@vger.kernel.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=intel.com Return-Path: Received: from am.mirrors.kernel.org (am.mirrors.kernel.org. [2604:1380:4601:e00::3]) by mx.google.com with ESMTPS id j21-20020aa7ca55000000b0056e09e70426si10483144edt.6.2024.04.25.11.44.30 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 25 Apr 2024 11:44:31 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel+bounces-159028-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:4601:e00::3 as permitted sender) client-ip=2604:1380:4601:e00::3; Authentication-Results: mx.google.com; dkim=pass header.i=@intel.com header.s=Intel header.b=EU4Fq4X8; 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-159028-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:4601:e00::3 as permitted sender) smtp.mailfrom="linux-kernel+bounces-159028-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 am.mirrors.kernel.org (Postfix) with ESMTPS id C56D91F221CF for ; Thu, 25 Apr 2024 18:44:30 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id D6A7D1514C9; Thu, 25 Apr 2024 18:44:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="EU4Fq4X8" Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.20]) (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 35F3212C559 for ; Thu, 25 Apr 2024 18:44:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.20 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714070650; cv=none; b=PFv62ZimHSU6qkbSw5FeO6ytqMwDz2u2HFMC1UasLGRjsMiYET53WILpTmsxntDqZW/PH80ynUzLrT9Aw00bNCIchYEjG2vesjau8v+mAzTDfCLr0h11KBrHT5AQ2aPrQtYLl9SApD5djfAjCw5fPNKxRarS62CkfRpnL6XPJVc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714070650; c=relaxed/simple; bh=hvHnt1FT74mol4uZKYOI2q2ee3nfz3jzcVxC0CHjVoY=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=dJ65XJ/vn/13oRvyFEuElPZtOv0uPdfNQszlT/uc9R0BdqfbNcM81CRdX5P+NTVL+LGp6FkKl9eTUmVZcx/1sZz3N65Ctf/zACPvK3a9ivcOowIUf4fd2ic+zXmLx3TWR0WMDf/B4tHBujs0OFLhp0WiUqaM+JlbUnmSZ3dKT6g= 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=EU4Fq4X8; arc=none smtp.client-ip=198.175.65.20 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=1714070648; x=1745606648; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to:content-transfer-encoding; bh=hvHnt1FT74mol4uZKYOI2q2ee3nfz3jzcVxC0CHjVoY=; b=EU4Fq4X8OCLXstS7rVrMK6//ThrBPeEDjHw/Lg3XV/belt5vUO6RibiQ p3wcS3PHgs4pMsqGJLj6D35wNgn+mbxDVm3uU8Sf6bUkMihhlTQ5dkrKU c8Y52XxwTwG59Vi8zvdYiwqSfeVEVeU9p8Ds4vcItK7PX56mXPTQHGQfY ksP0t3aFhiztCT5/C5/m4Ad8G43lOQaiClr7uLGswcNLg5hqab3ngCqqR sJ3/QskC7SHmApqEEcNvEFO8gbIasmyTbO120uymnHvfzXRj2cT+17CUh h1o/UiWsgksgnN+8MHeBkKvWgdvm2Gf1uFmsHKeEF5hRrTTyR6pYjCdSx w==; X-CSE-ConnectionGUID: sabPyKlORxiNRYI/utKpng== X-CSE-MsgGUID: AOxfvU5PTViSbjPzxHmPuA== X-IronPort-AV: E=McAfee;i="6600,9927,11055"; a="9608789" X-IronPort-AV: E=Sophos;i="6.07,230,1708416000"; d="scan'208";a="9608789" Received: from fmviesa009.fm.intel.com ([10.60.135.149]) by orvoesa112.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Apr 2024 11:44:08 -0700 X-CSE-ConnectionGUID: wdO16JPmSFGJYP9GKvFjvQ== X-CSE-MsgGUID: SdBmRTHIQOOHpcWN/WBdbA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.07,230,1708416000"; d="scan'208";a="25160293" Received: from pdkerr-mobl2.amr.corp.intel.com (HELO [10.255.228.33]) ([10.255.228.33]) by fmviesa009-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Apr 2024 11:44:07 -0700 Message-ID: Date: Thu, 25 Apr 2024 11:44:06 -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 FWIW, I'm running something as close to your qemu command-line as I can get with a 6.9-rc5 kernel and your .config. I'm over a thousand boots in with no hangs yet. This was just with my existing qemu.