From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <mhall@mhcomputing.net>
Received: from mail.mhcomputing.net (master.mhcomputing.net [74.208.228.170])
 by dpdk.org (Postfix) with ESMTP id 8BCFD8E59
 for <dev@dpdk.org>; Thu, 21 Jan 2016 07:19:58 +0100 (CET)
Received: from mhall-osx-home.local
 (99-34-229-174.lightspeed.sntcca.sbcglobal.net [99.34.229.174])
 by mail.mhcomputing.net (Postfix) with ESMTPSA id DC7FABF
 for <dev@dpdk.org>; Thu, 21 Jan 2016 01:19:57 -0500 (EST)
To: dev@dpdk.org
References: <1453296322-1210-1-git-send-email-harry.van.haaren@intel.com>
 <533710CFB86FA344BFBF2D6802E6028622F1E7EA@SHSMSX101.ccr.corp.intel.com>
From: Matthew Hall <mhall@mhcomputing.net>
Message-ID: <56A0788D.9000802@mhcomputing.net>
Date: Wed, 20 Jan 2016 22:19:57 -0800
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:38.0)
 Gecko/20100101 Thunderbird/38.5.0
MIME-Version: 1.0
In-Reply-To: <533710CFB86FA344BFBF2D6802E6028622F1E7EA@SHSMSX101.ccr.corp.intel.com>
Content-Type: text/plain; charset=windows-1252; format=flowed
Content-Transfer-Encoding: 7bit
Subject: Re: [dpdk-dev] [PATCH] eal: add function to check if primary proc
 alive
X-BeenThere: dev@dpdk.org
X-Mailman-Version: 2.1.15
Precedence: list
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>
X-List-Received-Date: Thu, 21 Jan 2016 06:19:58 -0000

On 1/20/16 10:14 PM, Qiu, Michael wrote:
> As we could start up many primaries, how does your secondary process
> work with them?

I just worked on this tonight myself. When doing > 1 primary (for 
example pktgen and app), I had to specify:

--no-shconf
--file-prefix pktgen
--file-prefix app

Or you get a panic and RTE fails to init, but the file-prefix seems to 
get applied both to the hugepage mmap() files and also to the lockfiles 
in /var/run:

$ ls -a /var/run | egrep -i '^\.'
.
..
.pktgen_hugepage_info
.rte_config
.rte_hugepage_info
.sdn_sensor_hugepage_info

So I think you have to keep the different primary-secondary sets 
separate using --file-prefix .

Matthew.