From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by dpdk.org (Postfix) with ESMTP id 8831C4CA9 for ; Wed, 24 Oct 2018 09:17:57 +0200 (CEST) X-Amp-Result: UNSCANNABLE X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga105.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 24 Oct 2018 00:17:56 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.54,419,1534834800"; d="scan'208";a="101981677" Received: from btwcube1.sh.intel.com (HELO debian) ([10.67.104.158]) by fmsmga001.fm.intel.com with ESMTP; 24 Oct 2018 00:17:55 -0700 Date: Wed, 24 Oct 2018 15:16:32 +0800 From: Tiwei Bie To: Stephen Hemminger Cc: Maxime Coquelin , dev@dpdk.org Message-ID: <20181024071632.GA23210@debian> References: <20181023085658.10aa5301@xeon-e3> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20181023085658.10aa5301@xeon-e3> User-Agent: Mutt/1.10.1 (2018-07-13) Subject: Re: [dpdk-dev] errors from VHOST on shutdown. X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 24 Oct 2018 07:17:58 -0000 On Tue, Oct 23, 2018 at 08:56:58AM -0700, Stephen Hemminger wrote: > I get errors on shutdown of application using virtio-user. > For example, quitting testpmd: > > Detaching a port... > vhost_kernel_set_backend(): VHOST_NET_SET_BACKEND fails, Operation not permitted > vhost_kernel_set_backend(): VHOST_NET_SET_BACKEND fails, Operation not permitted > vhost_kernel_ioctl(): VHOST_RESET_OWNER failed: Operation not permitted > > Everything works fine, but not good to have this kind of thing visible to user. > These error messages should be fixed, or the error message removed. > > How do you want to handle it? I'll take a close look and try to fix it. Thanks