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=-1.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=no 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 88CCFC433DF for ; Wed, 20 May 2020 00:46:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 48BD520756 for ; Wed, 20 May 2020 00:46:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1589935607; bh=FR/66lhQPGU3oYhtsyGKqgKaTvciTidOvN3l0A7PLms=; h=References:In-Reply-To:From:Date:Subject:To:Cc:List-ID:From; b=RUVeECj3FtvuTcoG0voLha+UJEpueIq37BHe0UBw34vCwwfM3ec64vSIZMFkPgJCc XFwrG0BUD/dWbWK6UcTSVz0uq4+zgtbQGzBkZQimR2m7IY9M4MTCUibi/5iF/lUWp5 rNmtkZp4RJ6+ebfnxohLablNbv6bOtTrYDLmIZJ0= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728172AbgETAqq (ORCPT ); Tue, 19 May 2020 20:46:46 -0400 Received: from mail.kernel.org ([198.145.29.99]:51968 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726178AbgETAqq (ORCPT ); Tue, 19 May 2020 20:46:46 -0400 Received: from mail-wr1-f46.google.com (mail-wr1-f46.google.com [209.85.221.46]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 6B12520835 for ; Wed, 20 May 2020 00:46:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1589935605; bh=FR/66lhQPGU3oYhtsyGKqgKaTvciTidOvN3l0A7PLms=; h=References:In-Reply-To:From:Date:Subject:To:Cc:From; b=d8OHrcJd8P9AdwPxP4lvYdJ2t3uZECdTDL4u0BNKsLn++tb2tmoyfoS8GXBPoXYmg MHttQlJWd0Jjf+xthnfX/ULinplORCqKkhue/s6lPJ32Ipdd77Qcml5bpXzTCsPsng 4BeAO9G07SpXU5ehEq7IWiTdZZ+pCBLa/YSFHilA= Received: by mail-wr1-f46.google.com with SMTP id j5so1394824wrq.2 for ; Tue, 19 May 2020 17:46:45 -0700 (PDT) X-Gm-Message-State: AOAM530Ur1zEjbAvwEhg5kqf7x9ZAbgzaX+h2vawWfJZWmP2XvMX3Nzr 7zJZC3qD60hMf+QTQTne2gpf25ZbZTqLoLHKk7ySxQ== X-Google-Smtp-Source: ABdhPJyfMgOeytcrUm9PfPDept0RQcPG19FyC6sON8zKhdWdeBnYKm0VtkBXoVWcERXAbepFlWnSabrRna/labDrBYg= X-Received: by 2002:adf:a389:: with SMTP id l9mr1572429wrb.18.1589935603905; Tue, 19 May 2020 17:46:43 -0700 (PDT) MIME-Version: 1.0 References: <20200515234547.710474468@linutronix.de> <20200515235127.903812024@linutronix.de> In-Reply-To: <20200515235127.903812024@linutronix.de> From: Andy Lutomirski Date: Tue, 19 May 2020 17:46:32 -0700 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [patch V6 35/37] x86/entry/64: Remove TRACE_IRQS_*_DEBUG To: Thomas Gleixner Cc: LKML , X86 ML , "Paul E. McKenney" , Andy Lutomirski , Alexandre Chartre , Frederic Weisbecker , Paolo Bonzini , Sean Christopherson , Masami Hiramatsu , Petr Mladek , Steven Rostedt , Joel Fernandes , Boris Ostrovsky , Juergen Gross , Brian Gerst , Mathieu Desnoyers , Josh Poimboeuf , Will Deacon , Tom Lendacky , Wei Liu , Michael Kelley , Jason Chen CJ , Zhao Yakui , "Peter Zijlstra (Intel)" Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, May 15, 2020 at 5:10 PM Thomas Gleixner wrote: > > > Since INT3/#BP no longer runs on an IST, this workaround is no longer > required. > > Tested by running lockdep+ftrace as described in the initial commit: > > 5963e317b1e9 ("ftrace/x86: Do not change stacks in DEBUG when calling lockdep") Acked-by: Andy Lutomirski