Received: by 2002:ad5:474a:0:0:0:0:0 with SMTP id i10csp2104521imu; Sun, 18 Nov 2018 16:03:15 -0800 (PST) X-Google-Smtp-Source: AJdET5eUCAzRtP00E22Ez3D/Vbb6O3Kh1xS3BcvYDDEIcJ0sJtzWnWp8Cx+cIkAa96gjbcKI+gjq X-Received: by 2002:a62:6801:: with SMTP id d1-v6mr20562101pfc.7.1542585795498; Sun, 18 Nov 2018 16:03:15 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1542585795; cv=none; d=google.com; s=arc-20160816; b=y/mDgNnLVPu2ZjJ7dfW0OuyXLxVdpaWHYByJC4vGJkidzijRN2WCKTBR/zGVG4pN5b 6u+0l7jiCHzxU3KmC2ARGP8aaVEKSoCXoz7tS3zjZ1olcipPA3ZFMdtuuVHXD6WbtY8h /cmlzkG67414/0FN8X/L4wStZ37ARVK5WVdFSR5S6Vi4re5o85ivafcBBGQr6bE3uIsp P2OXWkle3BjJahVpHVCGzBE7r34GKArmyAYEOSU4CwQ/n5qz1UldN3i1DDVY3zkM5CsF h6HlVXtKZjSOFRXEYjOoPJLTyZC8z3cz1vXIrCfglwOgvTSPC0rzlvOn4PpWPtwrEFU1 Yr8g== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date; bh=XcXWttwm/KowkIgSCLqc2Kz8h/BQ5h4dZmPZcCahnRQ=; b=fYBpiMEBIjEBXEpilyjkcBNC5rFEufZl9hU8r15lMntxz7Fabg55GyRDBe7EvF1Sry YupWN8v6CzaTPEBwIHoPdPbJD+hY4JSUK5uxV2diNYS4w+9rQnDYmnc5WIwuTAtt++7U I0czOQ4Cyqq6BfnIlM76yUeV40lzA2bqtF74UmIR9gY/aM0qOpDqEep1ZuZogRERUbWv gWV7ySin0INcGkZ79tJOL2pfT+yEBwm0uPm1IpOCBjrNmMV6YqI6GG8soIpGg7jYw9KH rM1DXCuOpIqN/Xv+9EZbLE34pf80r3zSnK8Nksl1fGTPBQpDkwffjA7ZktpdOHvp0E2a mI6w== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=intel.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id y17si2278871pll.10.2018.11.18.16.03.00; Sun, 18 Nov 2018 16:03:15 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 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 S1728174AbeKSKUS (ORCPT + 99 others); Mon, 19 Nov 2018 05:20:18 -0500 Received: from mga05.intel.com ([192.55.52.43]:47221 "EHLO mga05.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726950AbeKSKUS (ORCPT ); Mon, 19 Nov 2018 05:20:18 -0500 X-Amp-Result: UNKNOWN X-Amp-Original-Verdict: FILE UNKNOWN X-Amp-File-Uploaded: False Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga105.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 18 Nov 2018 15:58:33 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,250,1539673200"; d="scan'208";a="87445254" Received: from tassilo.jf.intel.com (HELO tassilo.localdomain) ([10.7.201.126]) by fmsmga008.fm.intel.com with ESMTP; 18 Nov 2018 15:58:32 -0800 Received: by tassilo.localdomain (Postfix, from userid 1000) id C6115301015; Sun, 18 Nov 2018 15:58:32 -0800 (PST) Date: Sun, 18 Nov 2018 15:58:32 -0800 From: Andi Kleen To: Tim Chen Cc: Jiri Kosina , Linus Torvalds , Thomas Gleixner , Peter Zijlstra , Josh Poimboeuf , Andrea Arcangeli , David Woodhouse , Casey Schaufler , Linux List Kernel Mailing , the arch/x86 maintainers , stable@vger.kernel.org Subject: Re: STIBP by default.. Revert? Message-ID: <20181118235832.GA13936@tassilo.jf.intel.com> References: <32d00fb2-7187-ed6f-ab1e-287151e82b3a@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <32d00fb2-7187-ed6f-ab1e-287151e82b3a@linux.intel.com> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > So my patchset and Jiri's patchset should probably be merged together, so the > users have a choice of the behavior. ... or delay Jiri's patchkit until the scheduler can actually check properly for the cases when it is really needed. -Andi