From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755625AbbAHCFG (ORCPT ); Wed, 7 Jan 2015 21:05:06 -0500 Received: from mga02.intel.com ([134.134.136.20]:35176 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752509AbbAHCFE (ORCPT ); Wed, 7 Jan 2015 21:05:04 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.97,862,1389772800"; d="scan'208";a="437812684" Message-ID: <1420682701.6201.79.camel@intel.com> Subject: Re: [LKP] [null_blk] f2298c0403b: From: Huang Ying To: Ming Lei Cc: Jens Axboe , LKML , LKP ML Date: Thu, 08 Jan 2015 10:05:01 +0800 In-Reply-To: References: <1420598028.6201.70.camel@intel.com> <54AD4F98.6070702@kernel.dk> <1420678371.6201.78.camel@intel.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.12.9-1 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 2015-01-08 at 09:52 +0800, Ming Lei wrote: > On Thu, Jan 8, 2015 at 8:52 AM, Huang Ying wrote: > > On Wed, 2015-01-07 at 08:24 -0700, Jens Axboe wrote: > >> On 01/06/2015 07:33 PM, Huang Ying wrote: > >> > FYI, we noticed the below changes on > >> > > >> > commit f2298c0403b0dfcaef637eba0c02c4a06d7a25ab ("null_blk: multi queue aware block test driver") > >> > > >> > > >> > testbox/testcase/testparams: vm-kbuild-yocto-i386/boot/1 > >> > > >> > 320ae51feed5c2f1 f2298c0403b0dfcaef637eba0c > >> > ---------------- -------------------------- > >> > fail:runs %reproduction fail:runs > >> > | | | > >> > :10 100% 10:10 kmsg.VFS:could_not_find_a_valid_V7_on_nullb1 > >> > :10 100% 10:10 kmsg.VFS:could_not_find_a_valid_V7_on_nullb0 > >> > 1:10 -10% :10 kmsg.vm86_32:could_not_access_userspace_vm86_info > >> > > >> > vm-kbuild-yocto-i386: qemu-system-i386 -enable-kvm > >> > Memory: 320M > >> > > >> > [ 1.971241] mtip32xx Version 1.2.6os3 > >> > [ 1.971311] blk-mq: CPU -> queue map > >> > [ 1.971312] CPU 0 -> Queue 0 > >> > [ 1.971314] CPU 1 -> Queue 0 > >> > [ 1.971628] nullb0: unknown partition table > >> > [ 1.971748] blk-mq: CPU -> queue map > >> > [ 1.971749] CPU 0 -> Queue 0 > >> > [ 1.971751] CPU 1 -> Queue 0 > >> > [ 1.972023] nullb1: unknown partition table > >> > [ 1.972096] null: module loaded > >> > [ 1.972131] ibmasm: IBM ASM Service Processor Driver version 1.0 loaded > >> > > >> > I think this is at least confusing for the end user. > >> > >> Sorry, not sure I follow at all. If you're expecting the null block > >> driver to actually store data, then yes, you are going to have a bad > >> time. It's a test tool for storage stack development. > > > > I understand that null block is just for testing. > > > > I just think the message like: > > > > [ 1.971628] nullb0: unknown partition table > > > > may confuse the end user. They may think there are something wrong. > > But it is not. Is there any way to suppress this? > > It can be logged for any normal block devices which have not be > partitioned, and users should have understood that, IMO. Then it is OK. Thanks for explanation. Best Regards, Huang, Ying