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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 9A2DEC33CAF for ; Thu, 16 Jan 2020 18:05:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6E527214AF for ; Thu, 16 Jan 2020 18:05:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1579197939; bh=wU/9PA9pxNxoDXJ6lPoMf6WRbdEvS/5kHPeCbNbXJpU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=uEOtYxmRRWcz3UM9KavzXVCwq0PzmjMUb0DRR2HcIRJ/5dIowPsCTxHzVc+KwQQne DyIQ78ZE2kDs80lfLJDNwLa3CNtIuejsmA7wBZO48bn5Dwx7jiArBeh2oL+fsIQriK OW8+D6dDOMybfkyYhv2ak/qxfLtiITAhNa8jNJz4= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2394893AbgAPSFi (ORCPT ); Thu, 16 Jan 2020 13:05:38 -0500 Received: from mail.kernel.org ([198.145.29.99]:56600 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2393552AbgAPRjy (ORCPT ); Thu, 16 Jan 2020 12:39:54 -0500 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (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 B481C24720; Thu, 16 Jan 2020 17:39:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1579196394; bh=wU/9PA9pxNxoDXJ6lPoMf6WRbdEvS/5kHPeCbNbXJpU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=F8rYsW0MAtaKoY+mawP7VaIhoNOEifnv4nTRqjh8OG0xlbkg8z/IsggtNtBhLrPg0 MVRZ5FN2D0W0MGawUFEJKX+2bteNjsIHT+j48Z8P1jdvmu4BhZiSdEZpZntpLeGoaD KPwKoxMf9kGWI7ejyWFZIZ/VqHT3O4vsYJqG+AQg= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Thomas Gleixner , Peter Zijlstra , Sasha Levin Subject: [PATCH AUTOSEL 4.9 173/251] x86/kgbd: Use NMI_VECTOR not APIC_DM_NMI Date: Thu, 16 Jan 2020 12:35:22 -0500 Message-Id: <20200116173641.22137-133-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200116173641.22137-1-sashal@kernel.org> References: <20200116173641.22137-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Thomas Gleixner [ Upstream commit 2591bc4e8d70b4e1330d327fb7e3921f4e070a51 ] apic->send_IPI_allbutself() takes a vector number as argument. APIC_DM_NMI is clearly not a vector number. It's defined to 0x400 which is outside the vector space. Use NMI_VECTOR instead as that's what it is intended to be. Fixes: 82da3ff89dc2 ("x86: kgdb support") Signed-off-by: Thomas Gleixner Acked-by: Peter Zijlstra (Intel) Link: https://lkml.kernel.org/r/20190722105218.855189979@linutronix.de Signed-off-by: Sasha Levin --- arch/x86/kernel/kgdb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kernel/kgdb.c b/arch/x86/kernel/kgdb.c index 8e36f249646e..904e18bb38c5 100644 --- a/arch/x86/kernel/kgdb.c +++ b/arch/x86/kernel/kgdb.c @@ -438,7 +438,7 @@ static void kgdb_disable_hw_debug(struct pt_regs *regs) */ void kgdb_roundup_cpus(unsigned long flags) { - apic->send_IPI_allbutself(APIC_DM_NMI); + apic->send_IPI_allbutself(NMI_VECTOR); } #endif -- 2.20.1