From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932332AbcHOUsY (ORCPT ); Mon, 15 Aug 2016 16:48:24 -0400 Received: from shards.monkeyblade.net ([184.105.139.130]:45279 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932115AbcHOUsX (ORCPT ); Mon, 15 Aug 2016 16:48:23 -0400 Date: Mon, 15 Aug 2016 13:48:22 -0700 (PDT) Message-Id: <20160815.134822.386218604294575604.davem@davemloft.net> To: vkuznets@redhat.com Cc: netdev@vger.kernel.org, devel@linuxdriverproject.org, linux-kernel@vger.kernel.org, haiyangz@microsoft.com, kys@microsoft.com, stephen@networkplumber.org Subject: Re: [PATCH net v2 0/5] hv_netvsc: fixes for VF removal path From: David Miller In-Reply-To: <1471276123-24264-1-git-send-email-vkuznets@redhat.com> References: <1471276123-24264-1-git-send-email-vkuznets@redhat.com> X-Mailer: Mew version 6.7 on Emacs 24.5 / Mule 6.0 (HANACHIRUSATO) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.5.12 (shards.monkeyblade.net [149.20.54.216]); Mon, 15 Aug 2016 13:48:23 -0700 (PDT) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Vitaly Kuznetsov Date: Mon, 15 Aug 2016 17:48:38 +0200 > Kernel crash is reported after VF is removed and detached from netvsc > device. Turns out we have multiple different (but related) issues on the > VF removal path which I'm trying to address with PATCHes 2-5 of this > series. PATCH1 is required to support the change. > > Changes since v1: > - Re-arrange patches in the series to not introduce new issues [David Miller] > - Add PATCH5 which fixes a new issue I discovered while testing. > - Add Haiyang' A-b tags to PATCH1-4 > > With regards to Stephen's suggestion: I believe that switching to using RCU > and eliminating vf_use_cnt/vf_inject is the right thing to do long-term, we > can either put this on top of this series or do it later in net-next. Series applied, thanks.