Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755735AbcJUOFM (ORCPT ); Fri, 21 Oct 2016 10:05:12 -0400 Received: from mga09.intel.com ([134.134.136.24]:37834 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755237AbcJUOFK (ORCPT ); Fri, 21 Oct 2016 10:05:10 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.31,376,1473145200"; d="scan'208";a="182320711" Subject: Re: Regression with 0b9e2988ab22 ("ahci: use pci_alloc_irq_vectors") To: Christoph Hellwig References: <9d293889-3215-403b-bdf9-c24b684f18f0@linux.intel.com> <20161021132709.GA18825@lst.de> Cc: linux-ide@vger.kernel.org, linux-kernel From: Jarkko Nikula Message-ID: Date: Fri, 21 Oct 2016 17:05:06 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Icedove/45.4.0 MIME-Version: 1.0 In-Reply-To: <20161021132709.GA18825@lst.de> Content-Type: text/plain; charset=windows-1252; 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: 615 Lines: 17 On 10/21/2016 04:27 PM, Christoph Hellwig wrote: > Hi Jarkko, > > please try the two fixes queue up in the libata tree for this: > > https://git.kernel.org/cgit/linux/kernel/git/tj/libata.git/log/?h=for-4.9-fixes > Great! Commit 17a51f12cfbd ("ahci: only try to use multi-MSI mode if there is more than 1 port") fixed the non-working SATA on a machine with single port and it continues using MSI. Another machine with more ports still uses IO-APIC (was using MSI before 0b9e2988ab22 ("ahci: use pci_alloc_irq_vectors")). Then I applied a478b097474c ("ahci: fix nvec check") but didn't see changes. -- Jarkko