From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp-fr.alcatel-lucent.com (fr-hpida-esg-02.alcatel-lucent.com [135.245.210.21]) by dpdk.org (Postfix) with ESMTP id 2161F9E7 for ; Sat, 13 Jun 2015 00:54:01 +0200 (CEST) Received: from us70uusmtp3.zam.alcatel-lucent.com (unknown [135.5.2.65]) by Websense Email Security Gateway with ESMTPS id B523C6E2D31AA for ; Fri, 12 Jun 2015 22:53:55 +0000 (GMT) Received: from US70TWXCHHUB03.zam.alcatel-lucent.com (us70twxchhub03.zam.alcatel-lucent.com [135.5.2.35]) by us70uusmtp3.zam.alcatel-lucent.com (GMO) with ESMTP id t5CMrx45028215 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=FAIL) for ; Fri, 12 Jun 2015 22:53:59 GMT Received: from US70TWXCHMBA07.zam.alcatel-lucent.com ([169.254.1.180]) by US70TWXCHHUB03.zam.alcatel-lucent.com ([135.5.2.35]) with mapi id 14.03.0195.001; Fri, 12 Jun 2015 18:53:58 -0400 From: "Assaad, Sami (Sami)" To: "dev@dpdk.org" Thread-Topic: DPDK and ASLR Thread-Index: AdClYqnX6oX3wTP+R+y+yqpRpFgaAg== Date: Fri, 12 Jun 2015 22:53:58 +0000 Message-ID: <9478F0FB69DAA249AF0A9BDA1E6ED9521883632F@US70TWXCHMBA07.zam.alcatel-lucent.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: yes X-MS-TNEF-Correlator: x-originating-ip: [135.5.27.18] MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.15 Subject: [dpdk-dev] DPDK and ASLR X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 12 Jun 2015 22:54:01 -0000 When I operate a DPDK based application, the EAL always reports the followi= ng: EAL: WARNING: Address Space Layout Randomization (ASLR) is enabled in the k= ernel. EAL: This may cause issues with mapping memory into secondary processe= s. Our application is DPDK client/server based and runs properly. My questions are: * Is this warning of any importance? * Should ASLR be disabled? * Does ASLR affect DPDK performance? ___________________________________________________________________________= ______ Issue Update: 7. Re: How do you setup a VM in Promiscuous Mode using PCI Pass-Through (SR-IOV)? (Qiu, Michael) The problem I had was due to the fact that RMRR was used by the HOST for th= e HP 10G NIC card; which prevented me from performing a PCI Pass-Through. HP provided a BIOS and NIC Firmware update to resolve this. It is to note = that an Intel NIC having an 82599 Ethernet Controller did not generate the = RMRR issue! Best Regards, Sami Assaad.