Received: by 2002:a25:c205:0:0:0:0:0 with SMTP id s5csp1481754ybf; Thu, 27 Feb 2020 11:49:59 -0800 (PST) X-Google-Smtp-Source: APXvYqzh6zWL0KVOLVqRmWxu17sPgX1t4CuV0ZwbFaiETjwxFuAXMicr0cfgFXnOMbfdfYB3H/ce X-Received: by 2002:a05:6808:8fc:: with SMTP id d28mr531090oic.152.1582832998955; Thu, 27 Feb 2020 11:49:58 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1582832998; cv=none; d=google.com; s=arc-20160816; b=Ewk4hTbOySOF1Tp3eo8j8/bZSdsrS7SZ0NueAyz1ePaZx9G4Dner7PWdIHPlEBULTI OtFUWMQMHeDm3C6PbA8iZUMlmV9o7taFgjyz8Q6UQdI9k0P579emyAleLR+1TGTM4r/t rDiVjSaHNyaWEvzqgul0OizYHihFNCrlVy0v1GXaggfExwJczyEsecIfkKLgk4a+3+B7 n9JQ7Wg5pAP7xgzli20zCAUItwi7V2cIhh0Vz4/7DWxsPeYevMiDw5WMIRKVHrp7Ckzi SBpeGtoqKPIMT3ZcsonM83rC50yUktZhFTSHzKMQo9ivxW3cgvMmVwUezX4NDb4Eihil f/vA== 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:dkim-signature; bh=hFlsLDjrGILzRZvLWpLegtB6KF7JNimSyKmgEdxC3mU=; b=b1AZXTJYXxOTThyoPYthBFxTAH6cJoSU1KiEsFAHDG1jCOvFbSUTG1y9bTwVKKZb0r FngmxjsJApY/0tSe9dHAyChRmJBEOr/kss7YDMKb0xc+SDKT9uBAv0yun4Uihj+KSYQy wTTtdlF1auAkuBBqVlx+fIoBnpb1PEjgKJZxwKTRrXIMd/DiXJcYgquigMcmlWm/nUOo trVMx+4ZnavY1BkhaXaj2gICqaq59+rsKmGafROkpBd06R2/KYEva08/VPN8iKFI3knT oPU841DEtES951hadTERMvuKUQSC1xQh6qGLIvl2F0ilLpg2ge/iwMsJZ2FRPb/pph4O /A8w== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@alien8.de header.s=dkim header.b=TVyj2rNl; 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=pass (p=NONE sp=NONE dis=NONE) header.from=alien8.de Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id h21si144869otk.196.2020.02.27.11.49.45; Thu, 27 Feb 2020 11:49:58 -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; dkim=pass header.i=@alien8.de header.s=dkim header.b=TVyj2rNl; 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=pass (p=NONE sp=NONE dis=NONE) header.from=alien8.de Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730060AbgB0Ttf (ORCPT + 99 others); Thu, 27 Feb 2020 14:49:35 -0500 Received: from mail.skyhub.de ([5.9.137.197]:56692 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727159AbgB0Ttf (ORCPT ); Thu, 27 Feb 2020 14:49:35 -0500 Received: from zn.tnic (p200300EC2F0E0F0080237097B4C234BF.dip0.t-ipconnect.de [IPv6:2003:ec:2f0e:f00:8023:7097:b4c2:34bf]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.skyhub.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id C6B661EC0A0E; Thu, 27 Feb 2020 20:49:33 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=dkim; t=1582832974; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:in-reply-to:in-reply-to: references:references; bh=hFlsLDjrGILzRZvLWpLegtB6KF7JNimSyKmgEdxC3mU=; b=TVyj2rNlnvuz+5LcyrpITIwQPUe8mpZLKOidxe+rMQLquuHqpYLWmRYH3WuLF+OnBFFXnv PfxRw86VdeQkkp+3YVWX/hkXtp+UJQ0tRsq3km133+gGLhR8uy/8Ax5pl66+XZAMRIzcVn Cw/hFfeysf5vqthIc+1pDAyE9CSbh2U= Date: Thu, 27 Feb 2020 20:49:28 +0100 From: Borislav Petkov To: Thomas Gleixner Cc: LKML , x86@kernel.org, Steven Rostedt , Brian Gerst , Juergen Gross , Paolo Bonzini , Arnd Bergmann Subject: Re: [patch 1/8] x86/entry/64: Trace irqflags unconditionally on when returing to user space Message-ID: <20200227194928.GC18629@zn.tnic> References: <20200225220801.571835584@linutronix.de> <20200225221305.295289073@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20200225221305.295289073@linutronix.de> 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 Just formulations improvements: > Subject: [patch 1/8] x86/entry/64: Trace irqflags unconditionally on when returing to user space s/on // On Tue, Feb 25, 2020 at 11:08:02PM +0100, Thomas Gleixner wrote: > User space cannot longer disable interrupts so trace return to user space "Userspace cannot disable interrupts any longer... " > unconditionally as IRQS_ON. > > Signed-off-by: Thomas Gleixner ... -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette