From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753476AbdKXNLC (ORCPT ); Fri, 24 Nov 2017 08:11:02 -0500 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:51482 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753254AbdKXNLB (ORCPT ); Fri, 24 Nov 2017 08:11:01 -0500 Subject: Re: 4.14: WARNING: CPU: 4 PID: 2895 at block/blk-mq.c:1144 with virtio-blk (also 4.12 stable) From: Christian Borntraeger To: Christoph Hellwig Cc: Jens Axboe , Bart Van Assche , "linux-block@vger.kernel.org" , "linux-kernel@vger.kernel.org" , Thomas Gleixner References: <276625a9-44fb-719d-9281-caacefdbb99f@de.ibm.com> <1ddd1cd4-2862-849e-7849-82544bcb86be@de.ibm.com> <08e6f35a-4f49-973e-99f7-6087b44337c4@kernel.dk> <20171122072857.GA19338@lst.de> <20171123143453.GA29715@lst.de> <20171123182542.GA2680@lst.de> <899f1638-cca4-28e6-3225-51505a053d45@de.ibm.com> <20171123183232.GA2845@lst.de> <92ef1aae-90b5-f14f-390e-bfab97899431@de.ibm.com> Date: Fri, 24 Nov 2017 14:09:50 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.4.0 MIME-Version: 1.0 In-Reply-To: <92ef1aae-90b5-f14f-390e-bfab97899431@de.ibm.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 x-cbid: 17112413-0040-0000-0000-0000041237F5 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 17112413-0041-0000-0000-000020B50D58 Message-Id: <419d8565-9cbe-16ac-3d5d-5945098694bc@de.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2017-11-24_05:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 impostorscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1709140000 definitions=main-1711240177 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 11/23/2017 07:59 PM, Christian Borntraeger wrote: > > > On 11/23/2017 07:32 PM, Christoph Hellwig wrote: >> On Thu, Nov 23, 2017 at 07:28:31PM +0100, Christian Borntraeger wrote: >>> zfcp on s390. >> >> Ok, so it can't be the interrupt code, but probably is the blk-mq-cpumap.c >> changes. Can you try to revert just those for a quick test? > > > Hmm, I get further in boot, but the system seems very sluggish and it does not > seem to be able to access the scsi disks (get data from them) > FWIW, just having the changes in irq_affinity.c is indeed fine.