{"id":833283,"url":"http://patchwork.ozlabs.org/api/1.2/covers/833283/?format=json","web_url":"http://patchwork.ozlabs.org/project/netdev/cover/20171102103531.5514-1-vkuznets@redhat.com/","project":{"id":7,"url":"http://patchwork.ozlabs.org/api/1.2/projects/7/?format=json","name":"Linux network development","link_name":"netdev","list_id":"netdev.vger.kernel.org","list_email":"netdev@vger.kernel.org","web_url":null,"scm_url":null,"webscm_url":null,"list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"<20171102103531.5514-1-vkuznets@redhat.com>","list_archive_url":null,"date":"2017-11-02T10:35:29","name":"[net-next,v2,0/2] hv_netvsc: fix a hang on channel/mtu changes","submitter":{"id":65701,"url":"http://patchwork.ozlabs.org/api/1.2/people/65701/?format=json","name":"Vitaly Kuznetsov","email":"vkuznets@redhat.com"},"mbox":"http://patchwork.ozlabs.org/project/netdev/cover/20171102103531.5514-1-vkuznets@redhat.com/mbox/","series":[{"id":11472,"url":"http://patchwork.ozlabs.org/api/1.2/series/11472/?format=json","web_url":"http://patchwork.ozlabs.org/project/netdev/list/?series=11472","date":"2017-11-02T10:35:30","name":"hv_netvsc: fix a hang on channel/mtu changes","version":2,"mbox":"http://patchwork.ozlabs.org/series/11472/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/covers/833283/comments/","headers":{"Return-Path":"","X-Original-To":"patchwork-incoming@ozlabs.org","Delivered-To":"patchwork-incoming@ozlabs.org","Authentication-Results":["ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=vger.kernel.org\n\t(client-ip=209.132.180.67; helo=vger.kernel.org;\n\tenvelope-from=netdev-owner@vger.kernel.org;\n\treceiver=)","ext-mx08.extmail.prod.ext.phx2.redhat.com;\n\tdmarc=none (p=none dis=none) header.from=redhat.com","ext-mx08.extmail.prod.ext.phx2.redhat.com;\n\tspf=fail smtp.mailfrom=vkuznets@redhat.com"],"Received":["from vger.kernel.org (vger.kernel.org [209.132.180.67])\n\tby ozlabs.org (Postfix) with ESMTP id 3ySM2C1HtVz9t34\n\tfor ;\n\tThu, 2 Nov 2017 21:36:19 +1100 (AEDT)","(majordomo@vger.kernel.org) by vger.kernel.org via listexpand\n\tid S1755505AbdKBKff (ORCPT );\n\tThu, 2 Nov 2017 06:35:35 -0400","from mx1.redhat.com ([209.132.183.28]:53682 \"EHLO mx1.redhat.com\"\n\trhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP\n\tid S1752780AbdKBKfe (ORCPT );\n\tThu, 2 Nov 2017 06:35:34 -0400","from smtp.corp.redhat.com\n\t(int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13])\n\t(using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits))\n\t(No client certificate requested)\n\tby mx1.redhat.com (Postfix) with ESMTPS id 1569CC057FA6;\n\tThu, 2 Nov 2017 10:35:34 +0000 (UTC)","from vitty.brq.redhat.com (unknown [10.43.2.155])\n\tby smtp.corp.redhat.com (Postfix) with ESMTP id 69B9B60602;\n\tThu, 2 Nov 2017 10:35:32 +0000 (UTC)"],"DMARC-Filter":"OpenDMARC Filter v1.3.2 mx1.redhat.com 1569CC057FA6","From":"Vitaly Kuznetsov ","To":"netdev@vger.kernel.org","Cc":"linux-kernel@vger.kernel.org, devel@linuxdriverproject.org,\n\t\"K. Y. Srinivasan\" ,\n\tHaiyang Zhang ,\n\tStephen Hemminger ,\n\tEric Dumazet ","Subject":"[PATCH net-next v2 0/2] hv_netvsc: fix a hang on channel/mtu changes","Date":"Thu, 2 Nov 2017 11:35:29 +0100","Message-Id":"<20171102103531.5514-1-vkuznets@redhat.com>","X-Scanned-By":"MIMEDefang 2.79 on 10.5.11.13","X-Greylist":"Sender IP whitelisted, not delayed by milter-greylist-4.5.16\n\t(mx1.redhat.com [10.5.110.32]);\n\tThu, 02 Nov 2017 10:35:34 +0000 (UTC)","Sender":"netdev-owner@vger.kernel.org","Precedence":"bulk","List-ID":"","X-Mailing-List":"netdev@vger.kernel.org"},"content":"It was found that netvsc driver doesn't survive e.g.\n\n# while true; do ethtool -L eth0 combined 4; ethtool -L eth0 combined 8; done\"\n\ntest. I was able to identify a hang in guest/host communication, it is\nfixed by PATCH1 of this series. PATCH2 is a cosmetic change masking\nunneeded messages.\n\nChanges since v1:\n- Throw away patches 2 and 3 of the original series as one is unneeded and\n the other is not justified [Eric Dumazet, Stephen Hemminger] so I'm only\n fixing the hang now, the crash doesn't reproduce. Will keep an eye on it.\n\nVitaly Kuznetsov (2):\n hv_netvsc: netvsc_teardown_gpadl() split\n hv_netvsc: hide warnings about uninitialized/missing rndis device\n\n drivers/net/hyperv/netvsc.c | 69 ++++++++++++++++++++-------------------\n drivers/net/hyperv/rndis_filter.c | 4 +--\n 2 files changed, 38 insertions(+), 35 deletions(-)"}