Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933464AbaFIO7y (ORCPT ); Mon, 9 Jun 2014 10:59:54 -0400 Received: from bombadil.infradead.org ([198.137.202.9]:45312 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752994AbaFIO7v (ORCPT ); Mon, 9 Jun 2014 10:59:51 -0400 Date: Mon, 9 Jun 2014 07:59:44 -0700 From: Christoph Hellwig To: Jens Axboe Cc: Ming Lei , Matias Bj??rling , willy@linux.intel.com, keith.busch@intel.com, sbradshaw@micron.com, Linux Kernel Mailing List , linux-nvme@lists.infradead.org Subject: Re: [PATCH v6] NVMe: conversion to blk-mq Message-ID: <20140609145944.GA30626@infradead.org> References: <1402057225-7312-1-git-send-email-m@bjorling.me> <1402057225-7312-2-git-send-email-m@bjorling.me> <5395BFF2.2080402@fb.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5395BFF2.2080402@fb.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jun 09, 2014 at 08:08:50AM -0600, Jens Axboe wrote: > >[ 487.704074] nvme 0000:00:07.0: Cancelling I/O 202 QID 1 > >[ 487.717881] nvme 0000:00:07.0: Aborting I/O 202 QID 1 > >[ 487.736093] end_request: I/O error, dev nvme0n1, sector 91532352 > >[ 487.747378] nvme 0000:00:07.0: completed id 0 twice on queue 0 > > > > > >when running fio randread(libaio, iodepth:64) with more than 3 jobs. > > > >And looks no such failure when jobs is 1 or 2. > > It's a known issue, make sure you have this patch: > > http://git.kernel.dk/?p=linux-block.git;a=commit;h=f6be4fb4bcb396fc3b1c134b7863351972de081f So without this patch we can get duplicate completions? That could explain the issues that Robert sees with scsi-mq and hpsa.. -- 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/