Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DF5E9C636D7 for ; Wed, 22 Feb 2023 02:02:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230192AbjBVCC0 (ORCPT ); Tue, 21 Feb 2023 21:02:26 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38130 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229840AbjBVCCY (ORCPT ); Tue, 21 Feb 2023 21:02:24 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5C77930B2F for ; Tue, 21 Feb 2023 18:02:20 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id E646D6122F for ; Wed, 22 Feb 2023 02:02:19 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4CAC1C433EF; Wed, 22 Feb 2023 02:02:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1677031339; bh=wvHMIa+ob9baKmyFh8pKNyZ/gO7n0npNY5fD6niPVQw=; h=Date:From:To:Cc:Subject:Reply-To:From; b=B+mUTw590Bx+O4gxAAqE7Ec/bZmOouS3PADlJKykXWAduCx3YsHMRxGqu3jHK7NQm tZ/8PnGgKAca+zknoAHjpXdcQxVxsEU8ZbbQWFbbNvVTo/wy1FtFvqsxutQbShrXpE ZoI3CdG0xSuxp7UqrBEbCmcVsPCwCPihwQy8Gyhf1Jyq5PC+NItn9XUIUQrw4lHfvD EymkdwSpLtTaT/yIigX6X1c6fH+z21MStM/bCXRlQvOoODG1AnkurD8ITvUP/M4t9X dN+GjzsSqGTnwevBCPuqOhFNCbwvk/6Cpn3tX9ToPVz8Vom155ulhmr5wouikXNtxz 53TwcJZ/pU29g== Received: by paulmck-ThinkPad-P17-Gen-1.home (Postfix, from userid 1000) id EB21D5C10B5; Tue, 21 Feb 2023 18:02:18 -0800 (PST) Date: Tue, 21 Feb 2023 18:02:18 -0800 From: "Paul E. McKenney" To: torvalds@linux-foundation.org Cc: mingo@kernel.org, tglx@linutronix.de, bp@alien8.de, dave.hansen@linux.intel.com, hpa@zytor.com, x86@kernel.org, linux-kernel@vger.kernel.org, kernel-team@meta.com Subject: [GIT PULL] x86 NMI diagnostics for v6.3 Message-ID: <20230222020218.GA1345108@paulmck-ThinkPad-P17-Gen-1> Reply-To: paulmck@kernel.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, Linus, Please pull the x86 NMI diagnostics series from: git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git tags/nmi.2023.02.14a # HEAD: x86/nmi: Print reasons why backtrace NMIs are ignored (2023-01-19 15:55:12 -0800) This is of course not normally something that would come up through the -rcu tree, but these have Ingo Molnar's Reviewed-by tag. ---------------------------------------------------------------- NMI diagnostics for v6.3 Add diagnostics to the x86 NMI handler to help detect NMI-handler bugs on the one hand and failing hardware on the other. ---------------------------------------------------------------- Paul E. McKenney (2): x86/nmi: Accumulate NMI-progress evidence in exc_nmi() x86/nmi: Print reasons why backtrace NMIs are ignored arch/x86/kernel/nmi.c | 108 +++++++++++++++++++++++++++++++++++++++++++++++++- include/linux/nmi.h | 8 ++++ lib/Kconfig.debug | 11 +++++ lib/nmi_backtrace.c | 2 + 4 files changed, 128 insertions(+), 1 deletion(-)