From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_2 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 77382C3F2C6 for ; Tue, 3 Mar 2020 14:13:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 57E482086A for ; Tue, 3 Mar 2020 14:13:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728848AbgCCONC (ORCPT ); Tue, 3 Mar 2020 09:13:02 -0500 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:39538 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1725932AbgCCONB (ORCPT ); Tue, 3 Mar 2020 09:13:01 -0500 Received: from pps.filterd (m0098419.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 023Dt2N5123054 for ; Tue, 3 Mar 2020 09:13:00 -0500 Received: from e06smtp05.uk.ibm.com (e06smtp05.uk.ibm.com [195.75.94.101]) by mx0b-001b2d01.pphosted.com with ESMTP id 2yfhs53g6c-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Tue, 03 Mar 2020 09:13:00 -0500 Received: from localhost by e06smtp05.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Tue, 3 Mar 2020 14:12:58 -0000 Received: from b06cxnps4074.portsmouth.uk.ibm.com (9.149.109.196) by e06smtp05.uk.ibm.com (192.168.101.135) with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Tue, 3 Mar 2020 14:12:55 -0000 Received: from d06av24.portsmouth.uk.ibm.com (mk.ibm.com [9.149.105.60]) by b06cxnps4074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 023ECrkS50069520 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 3 Mar 2020 14:12:54 GMT Received: from d06av24.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id D75FC4204B; Tue, 3 Mar 2020 14:12:53 +0000 (GMT) Received: from d06av24.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 6C2484203F; Tue, 3 Mar 2020 14:12:53 +0000 (GMT) Received: from oc2783563651 (unknown [9.152.224.80]) by d06av24.portsmouth.uk.ibm.com (Postfix) with ESMTP; Tue, 3 Mar 2020 14:12:53 +0000 (GMT) Date: Tue, 3 Mar 2020 15:12:52 +0100 From: Halil Pasic To: "Michael S. Tsirkin" , Jason Wang Cc: Paolo Bonzini , Stefan Hajnoczi , Jens Axboe , virtualization@lists.linux-foundation.org, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org, Christian Borntraeger , Viktor Mihajlovski , Cornelia Huck , Ram Pai , Thiago Jung Bauermann , "Lendacky, Thomas" Subject: Re: [PATCH 0/2] virtio-blk: improve handling of DMA mapping failures In-Reply-To: <20200213123728.61216-1-pasic@linux.ibm.com> References: <20200213123728.61216-1-pasic@linux.ibm.com> Organization: IBM X-Mailer: Claws Mail 3.11.1 (GTK+ 2.24.31; x86_64-redhat-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 x-cbid: 20030314-0020-0000-0000-000003B0199C X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 20030314-0021-0000-0000-000022084913 Message-Id: <20200303151252.59d45e86.pasic@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138,18.0.572 definitions=2020-03-03_04:2020-03-03,2020-03-03 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 lowpriorityscore=0 mlxlogscore=999 malwarescore=0 impostorscore=0 suspectscore=0 clxscore=1015 bulkscore=0 adultscore=0 mlxscore=0 priorityscore=1501 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2001150001 definitions=main-2003030107 Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org On Thu, 13 Feb 2020 13:37:26 +0100 Halil Pasic wrote: > Two patches are handling new edge cases introduced by doing DMA mappings > (which can fail) in virtio core. > > I stumbled upon this while stress testing I/O for Protected Virtual > Machines. I deliberately chose a tiny swiotlb size and have generated > load with fio. With more than one virtio-blk disk in use I experienced > hangs. > > The goal of this series is to fix those hangs. > > Halil Pasic (2): > virtio-blk: fix hw_queue stopped on arbitrary error > virtio-blk: improve virtqueue error to BLK_STS > > drivers/block/virtio_blk.c | 17 ++++++++++++----- > 1 file changed, 12 insertions(+), 5 deletions(-) > > > base-commit: 39bed42de2e7d74686a2d5a45638d6a5d7e7d473 ping Hi Michael, hi Jason, I got some favorable reviews for this, but AFAIK I got nothing form the maintainers yet. Is some of you going to pick these? Regards, Halil