From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stephen Hemminger <stephen@networkplumber.org>
Subject: Re: Mellanox PMD failure w/DPDK-2.1.0 and
 MLNX_OFED-3.1-1.0.3
Date: Fri, 16 Oct 2015 13:01:58 -0700
Message-ID: <20151016130158.02055ce1@xeon-e3>
References: <CABrJh-cL0gDVX0gousX6ze36qODUvbD00KsnoctuHADVbkzrYA@mail.gmail.com>
 <AM2PR05MB0995427F9B56B4D37D9AEFACD3350@AM2PR05MB0995.eurprd05.prod.outlook.com>
 <yopt102sxxyxwnaidxyxnr9g.1444294994368@email.android.com>
 <CABrJh-eNOw-_=aGu2CfCV-tJvk_3Kv2aYgPmLij1_XZfx+5j4A@mail.gmail.com>
 <CABrJh-dgtVya=FZv9zn7UpaJCt_zHw6T-r7Rjjd2Z3eNOpdN7w@mail.gmail.com>
 <HE1PR05MB10013DD38F10B9D87A918DD6D3350@HE1PR05MB1001.eurprd05.prod.outlook.com>
 <CABrJh-fKhVtSnPUQTQEfFkEp2ayKXUEcLH8ORSne4WWXg-1keA@mail.gmail.com>
 <AM2PR05MB09956A55B37CFD23727FCD77D33E0@AM2PR05MB0995.eurprd05.prod.outlook.com>
 <CABrJh-eyQPh2N3KSjFCLrA41Sii0ZyzvLRzLZoaVUpFsYsyy2w@mail.gmail.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
Cc: "dev@dpdk.org" <dev@dpdk.org>, Moshe Lazer <moshel@mellanox.com>
To: "Bill O'Hara" <billtohara@gmail.com>
Return-path: <dev-bounces@dpdk.org>
Received: from mail-pa0-f50.google.com (mail-pa0-f50.google.com
 [209.85.220.50]) by dpdk.org (Postfix) with ESMTP id 728985A53
 for <dev@dpdk.org>; Fri, 16 Oct 2015 22:01:49 +0200 (CEST)
Received: by pacfv9 with SMTP id fv9so31408797pac.3
 for <dev@dpdk.org>; Fri, 16 Oct 2015 13:01:48 -0700 (PDT)
In-Reply-To: <CABrJh-eyQPh2N3KSjFCLrA41Sii0ZyzvLRzLZoaVUpFsYsyy2w@mail.gmail.com>
List-Id: patches and discussions about DPDK <dev.dpdk.org>
List-Unsubscribe: <http://dpdk.org/ml/options/dev>,
 <mailto:dev-request@dpdk.org?subject=unsubscribe>
List-Archive: <http://dpdk.org/ml/archives/dev/>
List-Post: <mailto:dev@dpdk.org>
List-Help: <mailto:dev-request@dpdk.org?subject=help>
List-Subscribe: <http://dpdk.org/ml/listinfo/dev>,
 <mailto:dev-request@dpdk.org?subject=subscribe>
Errors-To: dev-bounces@dpdk.org
Sender: "dev" <dev-bounces@dpdk.org>

On Fri, 16 Oct 2015 12:11:14 -0700
"Bill O'Hara" <billtohara@gmail.com> wrote:

> Hi Olga,
> 
> Sorry for slow response. Initially, raw_ethernet_bw and raw_ethernet_lat
> were not working.
> 
> * we clean installed some boxes, rather than upgrading from previous ofed
> etc and now the raw_ethernet_bw and raw_ethernet_lat work. (This is on
> ubuntu14.04 with most recent mellanox ofed release).
> 
> * dpdk-2.1 still did not work. We clean installed the build box, to clear
> any possibility of mismatches due to upgrade process. Still not working.
> 
> * at the suggestion of one of our developers, we switched from statically
> linking dpdk and libibverbs to static dpdk and dynamic libibverbs. Now the
> dpdk test programs work.
> 
> * at this point, we've switched back to our own kernel build (with
> patches), our own dpdk programs, and everything appears to be correct.
> 
> Apologies for the firedrill -- we do not yet know the exact root cause, but
> it appears to be related to having done an upgrade of mellanox ofed on the
> ubuntu14.04 boxes AND building with static linking of libibverbs (though we
> double checked that the correct .a file was being linked). I will let you
> know if we have a more satisfactory answer -- we're also more highly
> prioritizing hermetic builds at this point.
> 
> thanks for your help and hints!
> bill

Sounds like a case where the application was not linked with proper
LDFLAGS to enable constructors.