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=-5.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 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 D3F50C433B4 for ; Mon, 17 May 2021 21:51:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B599361059 for ; Mon, 17 May 2021 21:51:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S245656AbhEQVxB (ORCPT ); Mon, 17 May 2021 17:53:01 -0400 Received: from blyat.fensystems.co.uk ([54.246.183.96]:60686 "EHLO blyat.fensystems.co.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230508AbhEQVxB (ORCPT ); Mon, 17 May 2021 17:53:01 -0400 Received: from dolphin.home (unknown [IPv6:2a00:23c6:5495:5e00:72b3:d5ff:feb1:e101]) by blyat.fensystems.co.uk (Postfix) with ESMTPSA id 4DA8144319; Mon, 17 May 2021 21:51:39 +0000 (UTC) Subject: Re: [PATCH] xen-netback: Check for hotplug-status existence before watching To: =?UTF-8?Q?Marek_Marczykowski-G=c3=b3recki?= , "Durrant, Paul" Cc: "paul@xen.org" , "xen-devel@lists.xenproject.org" , "netdev@vger.kernel.org" , "wei.liu@kernel.org" , Ian Jackson , Wei Liu , Anthony PERARD References: <20210413152512.903750-1-mbrown@fensystems.co.uk> <404130e4-210d-2214-47a8-833c0463d997@fensystems.co.uk> <21f38a92-c8ae-12a7-f1d8-50810c5eb088@fensystems.co.uk> <9edd6873034f474baafd70b1df693001@EX13D32EUC003.ant.amazon.com> From: Michael Brown Message-ID: Date: Mon, 17 May 2021 22:51:38 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.7.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On 17/05/2021 22:43, Marek Marczykowski-Górecki wrote: > In any case, the issue is not calling the hotplug script, responsible > for configuring newly created vif interface. Not kernel waiting for it. > So, I think both commits should still be reverted. Did you also test the ability for a domU to have the netfront driver reloaded? (That should be roughly equivalent to my original test scenario comprising the iPXE netfront driver used to boot a kernel that then loads the Linux netfront driver.) Michael