From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by dpdk.org (Postfix) with ESMTP id 6517C1B4F7 for ; Mon, 26 Nov 2018 10:49:21 +0100 (CET) Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 6E2D53164678; Mon, 26 Nov 2018 09:49:20 +0000 (UTC) Received: from ktraynor.remote.csb (ovpn-117-230.ams2.redhat.com [10.36.117.230]) by smtp.corp.redhat.com (Postfix) with ESMTP id 964261054FDB; Mon, 26 Nov 2018 09:49:06 +0000 (UTC) To: Thomas Monjalon , Ilya Maximets Cc: dev@dpdk.org, Maxime Coquelin , David Marchand , Tiwei Bie , Zhihong Wang , Ferruh Yigit , Ian Stokes , Bruce Richardson References: <20181123143620.10480-1-i.maximets@samsung.com> <2f95ce88-8f61-10c0-9131-49e2a5d10048@redhat.com> <2699010.cjLPUA7OeM@xps> <5128156.OEWx9KzbiF@xps> From: Kevin Traynor Organization: Red Hat Message-ID: <869d302d-74f0-6946-b105-70eb93ee79fe@redhat.com> Date: Mon, 26 Nov 2018 09:49:05 +0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.2.0 MIME-Version: 1.0 In-Reply-To: <5128156.OEWx9KzbiF@xps> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.41]); Mon, 26 Nov 2018 09:49:20 +0000 (UTC) Subject: Re: [dpdk-dev] [PATCH v3 0/2] IOPL related fixes 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: Mon, 26 Nov 2018 09:49:21 -0000 On 11/25/2018 10:42 AM, Thomas Monjalon wrote: > 23/11/2018 23:29, Thomas Monjalon: >> 23/11/2018 21:07, Kevin Traynor: >>> On 11/23/2018 04:25 PM, Maxime Coquelin wrote: >>>> On 11/23/18 4:53 PM, Ilya Maximets wrote: >>>>> On 23.11.2018 18:41, Maxime Coquelin wrote: >>>>>> On 11/23/18 4:39 PM, Ilya Maximets wrote: >>>>>>> Patches primary targeted to fix OVS unit test failures with >>>>>>> DPDK 18.11 due to following error: >>>>>>> 'IOPL call failed - cannot use virtio PMD'. >>>>>> >>>>>> You mention v18.11, do you mean this is a regression? >>>>> >>>>> Kind of. But not really a bug. It's just a message that shows up >>>>> every time you starting the app as a non-root user. >>>>> >>>>> The message itself was introduced long time ago, but it wasn't >>>>> printed for unclear reasons. It's probably some change in logging >>>>> subsystem uncovered it. >>>>> >>>>> I just checked and found that message appears starting from v18.02. >>>>> But OVS stuck with 17.11 LTS where this message exists, but not >>>>> printed for some reason. That's why this wasn't an issue previously. >>>> >>>> Thanks for the clarification. >>>> In that case, we may want it in v18.11 LTS, but I think it can wait or >>>> v18.11.1. >>> >>> It would be better if it can be in 18.11. Upstream OVS will point at a >>> release tarball, and at present an 18.11.1 release is not due until >>> mid-January. If it's too late for 18.11, alternatively we could do an >>> earlier 18.11.1 release. >> >> I won't take any risk at this stage. >> The memory of the headaches we had in the past with iopl is too much strong. >> The real change of this patch is to register the PMD even without successful iopl. >> I would like to be sure it won't cause any regression. > > After more thinking, I decide to take the risk. > Take it as a gift to OVS :-) > ok, thanks :-) If there's any subsequent changes needed, I will get them on an 18.11 stable branch straight away. > Series applied > >