From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by dpdk.space (Postfix) with ESMTP id C57C0A0AC5 for ; Fri, 3 May 2019 17:18:57 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 274C55F1D; Fri, 3 May 2019 17:18:57 +0200 (CEST) Received: from mail-wm1-f51.google.com (mail-wm1-f51.google.com [209.85.128.51]) by dpdk.org (Postfix) with ESMTP id 7A29D3256 for ; Fri, 3 May 2019 17:18:56 +0200 (CEST) Received: by mail-wm1-f51.google.com with SMTP id t76so7586233wmt.1 for ; Fri, 03 May 2019 08:18:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=DR5ZbjOtXvgE1MnV6QNjmjaoaSbNuHDECJdU9FpIfi4=; b=E6p1S5Yb2ZFpxpyClffjzCwtd2crXChzjnaFZ9x2hjPhJznB9n+8o+3eQ4otGpCSAC 6/2hyZuJEGHaLWyoDl9a1wSUNe2ldwbQCpa6icZ4gOKyLUXyTnExobSdNy6UIz/sO4zJ mTtTmj5/tDXGU8A+GQgWB4eoq47AeqPw+L+bALVLz8Y1D4xdN26xVDG147Az+tq75ryq 6AVkiNEIYiRVBSoi/ILS1nZnS0Ao70jVS5bQpgkeWkCaMQLpcsPd0x/9XvNSC5BhHIRX WegvE4r1OGILXkq+K8usWs6qZjctjMP+YZeS8FtTa8m16jef9cR9Ah/KFFbXne85dO4X ITMw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=DR5ZbjOtXvgE1MnV6QNjmjaoaSbNuHDECJdU9FpIfi4=; b=V7u+xyCc0qFAN6vH1Ms0HczGkjqDmoLkLDRMO+6yIb1aZJioFcdR+2FoZPAvVAVgiv /UosBCsFCD1JEEyHKkFSnrGPApXPiWdxfYnkuQfINgFzinV1nNfG+dj43n+6gAzZr/ma NWY6Mr7np/dwY533WTNaojavKFY0Wy4W7zCjIgMwUHYbts1lYjjNZ/vabEYfI+KoQrjK URx2mO1AFFJ9xJpdKMRCCO2IBUTJrrzoyKR01Fk+bedAXPW7dWCI2uiu3IPnWSOQSvfI bZz6O39N+rwgssJSNsm5HhYTopTN/VY4KtwPRtc/kpB3NDNVhPog645yBBNK81+Kx8kM hW8w== X-Gm-Message-State: APjAAAWM6P1VqzsJwNZpIyQFQwCmmwL+Rnp7Wx3diQSg9baXRhOCcVbz 1BJ2ushG5r5kDKYd1upfv71ll3V9V6JuF6PY9rt4L3r9 X-Google-Smtp-Source: APXvYqxNpm+QJ3FeuiSHFvNz2xvifDUdNXzOx5toKep95hIWiX6fitl+zRbsyQ8ZCrHVq4yY5sjk1O0EY2GXRUL/Q80= X-Received: by 2002:a7b:c00e:: with SMTP id c14mr6523579wmb.110.1556896735813; Fri, 03 May 2019 08:18:55 -0700 (PDT) MIME-Version: 1.0 From: Sruthi Yellamraju Date: Fri, 3 May 2019 11:18:44 -0400 Message-ID: To: users@dpdk.org Content-Type: text/plain; charset="UTF-8" X-Content-Filtered-By: Mailman/MimeDel 2.1.15 Subject: [dpdk-users] Non-privileged access with DPDK - Info X-BeenThere: users@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK usage discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: users-bounces@dpdk.org Sender: "users" Hi, I am using DPDK 19.02/Linux kernel 4.4.0 and I understand that non-root users cannot run DPDK on Linux Kernel 4.0+. I did come across this note in GSG: https://doc.dpdk.org/guides/linux_gsg/enable_func.html#running-dpdk-applications-without-root-privileges I'd like to understand more on what feature/limitation in Linux Kernel 4.0+ prevents non-privileged root access to physical memory. Any background/links would be really appreciated. Thanks, Sruthi