From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755212AbcI2L0J (ORCPT ); Thu, 29 Sep 2016 07:26:09 -0400 Received: from out2-smtp.messagingengine.com ([66.111.4.26]:57695 "EHLO out2-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754708AbcI2L0E (ORCPT ); Thu, 29 Sep 2016 07:26:04 -0400 X-Sasl-enc: v9jWvHrYxioXd4/2fKxf8IPSFqWuIqogtplrK8j9kA4V 1475148361 Date: Thu, 29 Sep 2016 08:25:58 -0300 From: Henrique de Moraes Holschuh To: "tj@kernel.org" Cc: "Shah, Nehal-bakulchandra" , Bharat Kumar Gogada , "Deucher, Alexander" , "linux-pci@vger.kernel.org" , "holler@ahsoftware.de" , "linux-ide@vger.kernel.org" , "linux-kernel@vger.kernel.org" Subject: Re: ATA failure regression Message-ID: <20160929112558.GA24350@khazad-dum.debian.net> References: <8520D5D51A55D047800579B094147198258E4869@XAP-PVEXMBX01.xlnx.xilinx.com> <20160929082229.GA11087@mtj.duckdns.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20160929082229.GA11087@mtj.duckdns.org> X-GPG-Fingerprint1: 4096R/0x0BD9E81139CB4807: C467 A717 507B BAFE D3C1 6092 0BD9 E811 39CB 4807 User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 29 Sep 2016, tj@kernel.org wrote: > On Wed, Sep 28, 2016 at 05:45:08AM +0000, Shah, Nehal-bakulchandra wrote: > > Can someone please help me to debug this issue? > > The only thing I can do from libata side is disbling msi on the > affected platform, but the problem doesn't seem confined to ahci, so > probably the right thing to do for now is disabling msi on the > platform? Actually, according to Shah's post from the 26th to this thread, everything works just fine even with the IOMMU enabled, as long as the system is configured to NOT auto-shutdown unused SATA ports. That seems to give some extra avenues at fixing/working around the issue, maybe? -- Henrique Holschuh