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=-5.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,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 4C608C3404B for ; Tue, 18 Feb 2020 22:40:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2495A24658 for ; Tue, 18 Feb 2020 22:40:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1582065625; bh=p7rSRm9UPH0+2uZT8yWNgKBnY+oWwj14kDnc9nBF6zQ=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=zfvFOkjeYenXQW3VKpBVHVxbn4ARIpGFQV2qdNZTpzIeTQoJ2z2FXZLv1e0UpBenR DvbCDA7Ieid3UUg5IlaMRG/exJCjWWuNbLhq9BRikLb14DRaFeSmalhHz7SqcBmAyp czHDt8DRHacysMglFZXL8imD/raHE68Cvp+JOFPo= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726691AbgBRWkX (ORCPT ); Tue, 18 Feb 2020 17:40:23 -0500 Received: from mail.kernel.org ([198.145.29.99]:59888 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726415AbgBRWkX (ORCPT ); Tue, 18 Feb 2020 17:40:23 -0500 Received: from localhost (lfbn-ncy-1-985-231.w90-101.abo.wanadoo.fr [90.101.63.231]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id A90B12173E; Tue, 18 Feb 2020 22:40:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1582065623; bh=p7rSRm9UPH0+2uZT8yWNgKBnY+oWwj14kDnc9nBF6zQ=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=UBx/zh3fmezbuYuPWdANnkExjb3/eMfo2G7n40lFWiWAlH9WG3zJiD3S3HESWB4+d ruyyxzHLgEvINJw31KdZMLWsIHOHL+YkuhtmSa4dVADKmbGONYvIpW/5wl9C/mWQ5Q JZBnGUhQCJ/KGlCEQkb6DJq/grRb7DGd8mP3nteg= Date: Tue, 18 Feb 2020 23:40:20 +0100 From: Frederic Weisbecker To: Peter Zijlstra Cc: "Luck, Tony" , Borislav Petkov , Steven Rostedt , Andy Lutomirski , x86-ml , lkml , paulmck@kernel.org Subject: Re: [RFC] #MC mess Message-ID: <20200218224019.GA13978@lenoir> References: <20200218173150.GK14449@zn.tnic> <3908561D78D1C84285E8C5FCA982C28F7F57B937@ORSMSX115.amr.corp.intel.com> <20200218200200.GE11457@worktop.programming.kicks-ass.net> <3908561D78D1C84285E8C5FCA982C28F7F57BDFB@ORSMSX115.amr.corp.intel.com> <20200218203404.GI11457@worktop.programming.kicks-ass.net> <20200218214904.GD11802@worktop.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200218214904.GD11802@worktop.programming.kicks-ass.net> User-Agent: Mutt/1.9.4 (2018-02-28) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Feb 18, 2020 at 10:49:04PM +0100, Peter Zijlstra wrote: > On Tue, Feb 18, 2020 at 09:34:04PM +0100, Peter Zijlstra wrote: > diff --git a/include/linux/hardirq.h b/include/linux/hardirq.h > index da0af631ded5..146332764673 100644 > --- a/include/linux/hardirq.h > +++ b/include/linux/hardirq.h > @@ -71,7 +71,7 @@ extern void irq_exit(void); > printk_nmi_enter(); \ > lockdep_off(); \ > ftrace_nmi_enter(); \ > - BUG_ON(in_nmi()); \ > + BUG_ON(in_nmi() == 0xf); \ I guess you meant: BUG_ON(in_nmi() == NMI_MASK); Thanks.