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 X-Spam-Level: X-Spam-Status: No, score=-5.4 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7EC72C3F2D0 for ; Fri, 28 Feb 2020 08:59:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 556A720578 for ; Fri, 28 Feb 2020 08:59:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="yBXqMB+4" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726700AbgB1I7b (ORCPT ); Fri, 28 Feb 2020 03:59:31 -0500 Received: from userp2130.oracle.com ([156.151.31.86]:59464 "EHLO userp2130.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726476AbgB1I7a (ORCPT ); Fri, 28 Feb 2020 03:59:30 -0500 Received: from pps.filterd (userp2130.oracle.com [127.0.0.1]) by userp2130.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 01S8rZNS168728; Fri, 28 Feb 2020 08:58:41 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=subject : to : cc : references : from : message-id : date : mime-version : in-reply-to : content-type : content-transfer-encoding; s=corp-2020-01-29; bh=m8ZK8pkfb4XwejHqrBGYrQiX+gig22p3Tw6PRBncsAE=; b=yBXqMB+45PYHsm0xtTJQRbstWEuVLiV32VQSareRf1y3rWJBPnIjTLyFW7IJdEKao15R BvzQm44fhIz93MJWpI71vARNDF2gXe4X39lLXlykDdER2QERrmuwU9VLc5apGYmppENz xPEXpLShxLUZTCvm8KnaZk2tHYd7PR+1U1cXDW2nCY2QLBflfkI/hnQkTkyXkjsHxoZW 14yNeDGxZdQuqctznB02hJByCtd77hFCpZlrXoqELKbc5OT3posfs/nKtKgtUbr56n8i crBjWlk7gF2wf2240IjlXxB6kXPe9lvWgD5X1TBzVjUJ/gvHpnI9oXF7gi4yC1b0hbFy gg== Received: from aserp3030.oracle.com (aserp3030.oracle.com [141.146.126.71]) by userp2130.oracle.com with ESMTP id 2ydcsnsgtg-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 28 Feb 2020 08:58:40 +0000 Received: from pps.filterd (aserp3030.oracle.com [127.0.0.1]) by aserp3030.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 01S8v7kO144923; Fri, 28 Feb 2020 08:58:40 GMT Received: from userv0121.oracle.com (userv0121.oracle.com [156.151.31.72]) by aserp3030.oracle.com with ESMTP id 2ydcsesd0j-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 28 Feb 2020 08:58:40 +0000 Received: from abhmp0001.oracle.com (abhmp0001.oracle.com [141.146.116.7]) by userv0121.oracle.com (8.14.4/8.13.8) with ESMTP id 01S8wacn001457; Fri, 28 Feb 2020 08:58:36 GMT Received: from [10.39.209.75] (/10.39.209.75) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Fri, 28 Feb 2020 00:58:36 -0800 Subject: Re: [patch 1/8] x86/entry/64: Trace irqflags unconditionally on when returing to user space To: Thomas Gleixner , LKML Cc: x86@kernel.org, Steven Rostedt , Brian Gerst , Juergen Gross , Paolo Bonzini , Arnd Bergmann References: <20200225220801.571835584@linutronix.de> <20200225221305.295289073@linutronix.de> From: Alexandre Chartre Organization: Oracle Corporation Message-ID: Date: Fri, 28 Feb 2020 09:58:39 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.5.0 MIME-Version: 1.0 In-Reply-To: <20200225221305.295289073@linutronix.de> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9544 signatures=668685 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 adultscore=0 phishscore=0 bulkscore=0 spamscore=0 mlxlogscore=901 mlxscore=0 suspectscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2001150001 definitions=main-2002280074 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9544 signatures=668685 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxscore=0 malwarescore=0 bulkscore=0 lowpriorityscore=0 mlxlogscore=958 phishscore=0 spamscore=0 adultscore=0 suspectscore=0 impostorscore=0 clxscore=1015 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2001150001 definitions=main-2002280073 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2/25/20 11:08 PM, Thomas Gleixner wrote: > User space cannot longer disable interrupts so trace return to user space > unconditionally as IRQS_ON. > > Signed-off-by: Thomas Gleixner > --- > arch/x86/entry/entry_64.S | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > Reviewed-by: Alexandre Chartre alex.