From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mout1.freenet.de ([195.4.92.91]:56401 "EHLO mout1.freenet.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752203AbbG1SYq (ORCPT ); Tue, 28 Jul 2015 14:24:46 -0400 Subject: Re: AMD-Vi IO_PAGE_FAULTs and ata3.00: failed command: READ FPDMA QUEUED errors since Linux 4.0 To: Mike Snitzer , Andreas Hartmann References: <55B7BEA2.30205@01019freenet.de> <20150728175054.GB24782@redhat.com> Cc: dm-devel@redhat.com, mpatocka@redhat.com, linux-pci From: Andreas Hartmann Message-ID: <55B7C800.2070702@maya.org> Date: Tue, 28 Jul 2015 20:20:48 +0200 MIME-Version: 1.0 In-Reply-To: <20150728175054.GB24782@redhat.com> Content-Type: text/plain; charset=windows-1252 Sender: linux-pci-owner@vger.kernel.org List-ID: On 07/28/2015 at 07:50 PM, Mike Snitzer wrote: [..] > Are your SATA devcies using NCQ? Yes. It's enabled: dmesg| grep -i ncq ahci 0000:00:11.0: flags: 64bit ncq sntf ilck pm led clo pmp pio slum part ata2.00: 5860533168 sectors, multi 0: LBA48 NCQ (depth 31/32), AA ata3.00: 5860533168 sectors, multi 0: LBA48 NCQ (depth 31/32), AA ata1.00: 468862128 sectors, multi 16: LBA48 NCQ (depth 31/32), AA As the errors already come up on boot (during mount of partitions or even before the password for the disk has been provided): How can I disable NCQ during boot of the kernel? Is there a kernel option? I'm trying to apply your mentioned patches to 3.19 and report back. > > Please see this dm-devl thread (and this post in particular): > https://www.redhat.com/archives/dm-devel/2015-June/msg00005.html > Thanks, Andreas