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[23.128.96.18]) by mx.google.com with ESMTP id l18si20166627jak.5.2021.06.21.04.52.20; Mon, 21 Jun 2021 04:52:33 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229804AbhFULwv convert rfc822-to-8bit (ORCPT + 99 others); Mon, 21 Jun 2021 07:52:51 -0400 Received: from mga06.intel.com ([134.134.136.31]:11441 "EHLO mga06.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229640AbhFULwv (ORCPT ); Mon, 21 Jun 2021 07:52:51 -0400 IronPort-SDR: nOubQCdixf+UuiFa9dFdQfK7dg2JVt6UFXzje2LuVbRbtlkzwdFNIlFd9XVRWUkDAHi83KHG0B VboIU0csMs/Q== X-IronPort-AV: E=McAfee;i="6200,9189,10021"; a="267966300" X-IronPort-AV: E=Sophos;i="5.83,289,1616482800"; d="scan'208";a="267966300" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Jun 2021 04:50:37 -0700 IronPort-SDR: NYL4P8Nmut2ZfafhCs9t0/cueIMeXHLUvGX7qR+dr/+vYiI1enn7cvSV/rY40ijOmiIb/x6LVK yKjNGlIVS7vw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.83,289,1616482800"; d="scan'208";a="453855175" Received: from fmsmsx606.amr.corp.intel.com ([10.18.126.86]) by fmsmga008.fm.intel.com with ESMTP; 21 Jun 2021 04:50:37 -0700 Received: from shsmsx601.ccr.corp.intel.com (10.109.6.141) by fmsmsx606.amr.corp.intel.com (10.18.126.86) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2242.4; Mon, 21 Jun 2021 04:50:35 -0700 Received: from shsmsx601.ccr.corp.intel.com (10.109.6.141) by SHSMSX601.ccr.corp.intel.com (10.109.6.141) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2242.4; Mon, 21 Jun 2021 19:50:33 +0800 Received: from shsmsx601.ccr.corp.intel.com ([10.109.6.141]) by SHSMSX601.ccr.corp.intel.com ([10.109.6.141]) with mapi id 15.01.2242.008; Mon, 21 Jun 2021 19:50:33 +0800 From: "Xu, Pengfei" To: Thomas Gleixner CC: "linux-kernel@vger.kernel.org" , "Hansen, Dave" , "Yu, Yu-cheng" , "Su, Heng" , "Du, Julie" , "Shankar, Ravi V" , "Brown, Len" , "Li, Philip" , "Xu, Pengfei" Subject: Re: Tested x86 FPU fixes and found "Bad FPU state" issue Thread-Topic: Tested x86 FPU fixes and found "Bad FPU state" issue Thread-Index: AddmOqPgT2Ohj/1gSo2GGOOxmvEmHQACF8iAABSENgA= Date: Mon, 21 Jun 2021 11:50:33 +0000 Message-ID: <72e37a644f474a3888ff96833213558d@intel.com> References: <9e6f363f138e4d05b368f4428399466b@intel.com> <87pmwffruk.ffs@nanos.tec.linutronix.de> In-Reply-To: <87pmwffruk.ffs@nanos.tec.linutronix.de> Accept-Language: zh-CN, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: dlp-product: dlpe-windows dlp-reaction: no-action dlp-version: 11.5.1.3 x-ms-exchange-imapappendstamp: SHSMSX601.ccr.corp.intel.com (15.01.2242.005) x-ms-exchange-messagesentrepresentingtype: 1 x-originating-ip: [10.239.127.36] Content-Type: text/plain; charset="us-ascii" Content-ID: Content-Transfer-Encoding: 8BIT MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Thomas, Thanks for your update! And I tried new fpu branch with last commit: b4c5dbb182058b2bd176fce77a4aea64494bf781 I verified this issue was fixed. I will keep testing new FPU branch kernel. Thanks! BR. On 2021-06-21 at 12:13:23 +0200, Thomas Gleixner wrote: > Pengfei! > > On Mon, Jun 21 2021 at 01:31, Pengfei Xu wrote: > > This "Bad FPU state" issue was found in 20210619 FPU branch kernel: > > https://git.kernel.org/pub/scm/linux/kernel/git/tglx/devel.git > > branch: origin/x86/fpu > > last commit: > > " > > commit 2299e66e766a7cdca8aafc36b59ada8782d26233 > > ... > > x86/fpu/signal: Let xrstor handle the features to init > > " > > Thanks for testing and reporting! > > I found the issue and updated the branch. New head commit is > > b4c5dbb18205 ("x86/fpu/signal: Let xrstor handle the features to init") > > Thanks, > > tglx