Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753389AbbLXFPk (ORCPT ); Thu, 24 Dec 2015 00:15:40 -0500 Received: from mail-pf0-f173.google.com ([209.85.192.173]:34189 "EHLO mail-pf0-f173.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751410AbbLXFPi (ORCPT ); Thu, 24 Dec 2015 00:15:38 -0500 Date: Wed, 23 Dec 2015 21:15:39 -0800 From: Jeremiah Mahler To: Jiang Liu Cc: Thomas Gleixner , Joe Lawrence , Ingo Molnar , "H. Peter Anvin" , x86@kernel.org, Borislav Petkov , andy.shevchenko@gmail.com, Guenter Roeck , linux-kernel@vger.kernel.org Subject: Re: [Bugfix v2 1/5] x86/irq: Do not reuse struct apic_chip_data.old_domain as temporary buffer Message-ID: <20151224051539.GB1845@hudson.localdomain> Mail-Followup-To: Jeremiah Mahler , Jiang Liu , Thomas Gleixner , Joe Lawrence , Ingo Molnar , "H. Peter Anvin" , x86@kernel.org, Borislav Petkov , andy.shevchenko@gmail.com, Guenter Roeck , linux-kernel@vger.kernel.org References: <1450880014-11741-1-git-send-email-jiang.liu@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1450880014-11741-1-git-send-email-jiang.liu@linux.intel.com> User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1560 Lines: 39 Jiang, On Wed, Dec 23, 2015 at 10:13:26PM +0800, Jiang Liu wrote: > Function __assign_irq_vector() makes use of apic_chip_data.old_domain > as a temporary buffer, which causes trouble to rollback logic in case of > failure. So use a dedicated temporary buffer for __assign_irq_vector(). > > Signed-off-by: Jiang Liu > --- > arch/x86/kernel/apic/vector.c | 9 +++++---- > 1 file changed, 5 insertions(+), 4 deletions(-) [...] I tried this patch and the rest in the series but unfortunately the bug is still present. [ 10.184649] wlan0: authenticated [ 10.187883] wlan0: associate with 02:1a:11:fb:90:1c (try 1/3) [ 10.191574] do_IRQ: 0.35 No irq handler for vector [ 10.191589] do_IRQ: 0.35 No irq handler for vector [ 10.198159] do_IRQ: 0.35 No irq handler for vector [ 10.198165] do_IRQ: 0.35 No irq handler for vector [ 10.200534] wlan0: RX AssocResp from 02:1a:11:fb:90:1c (capab=0x431 status=0 aid=1) [ 10.204611] wlan0: associated [ 10.238883] do_IRQ: 0.35 No irq handler for vector [ 10.238892] do_IRQ: 0.35 No irq handler for vector [ 10.280716] do_IRQ: 0.35 No irq handler for vector [ 10.281083] do_IRQ: 0.35 No irq handler for vector [ 10.286484] do_IRQ: 0.35 No irq handler for vector ... -- - Jeremiah Mahler -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/