Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932944AbbHIKPG (ORCPT ); Sun, 9 Aug 2015 06:15:06 -0400 Received: from h1446028.stratoserver.net ([85.214.92.142]:48731 "EHLO mail.ahsoftware.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754487AbbHIKPD (ORCPT ); Sun, 9 Aug 2015 06:15:03 -0400 Subject: Re: [Bugfix] x86, irq: Fix a regression caused by commit b5dc8e6c21e7 To: Jiang Liu , Thomas Gleixner , Mark Rustad , Alex Deucher , Ingo Molnar , "H. Peter Anvin" , x86@kernel.org References: <1439108128-18441-1-git-send-email-jiang.liu@linux.intel.com> Cc: Tony Luck , linux-kernel@vger.kernel.org From: Alexander Holler Message-ID: <55C72814.9010404@ahsoftware.de> Date: Sun, 9 Aug 2015 12:14:44 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.1.0 MIME-Version: 1.0 In-Reply-To: <1439108128-18441-1-git-send-email-jiang.liu@linux.intel.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1368 Lines: 32 Am 09.08.2015 um 10:15 schrieb Jiang Liu: > Alex Deucher, Mark Rustad and Alexander Holler reported a regression > with the latest v4.2-rc4 kernel, which breaks some SATA controllers. > With multi-MSI capable SATA controllers, only the first port works, > all other ports times out when executing SATA commands. This regression > bisects to 52f518a3a7c2 ("x86/MSI: Use hierarchical irqdomains to manage > MSI interrupts"), but it's not the root cause, it just triggers a bug > caused by b5dc8e6c21e7 ("x86/irq: Use hierarchical irqdomain to manage > CPU interrupt vectors"). > > With this patch applied, the affected SATA controllers work as expected. > > Signed-off-by: Jiang Liu > Reported-by: Alex Deucher > Reported-by: Mark Rustad > Reported-by: Alexander Holler > --- > Hi Alex, Mark and Alexandler, > Sorry for the long delay to root cause this regression, it's > really annoying. Could you please help test this patch against the > latest v4.2-rcx? Works. Thanks. Tested-by: Alexander Holler -- 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/