From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-yw0-f177.google.com (mail-yw0-f177.google.com [209.85.161.177]) by dpdk.org (Postfix) with ESMTP id E96692B96 for ; Mon, 5 Sep 2016 07:33:15 +0200 (CEST) Received: by mail-yw0-f177.google.com with SMTP id s85so3730377ywg.3 for ; Sun, 04 Sep 2016 22:33:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:from:date:message-id:subject:to; bh=6bwlZ1ltdilbsw5OIOY7QuCRvbuSjDUomR5emtOx148=; b=zUh8ovWnA/jQbfKL20s3XeMbQsIwtunRhRwUoNYMKz62G+1tVHxUH8MLP4dVEqYMjf CG9ARcp1r5hsUUHVTzSC+1FTA/rOaqRB1lY8CxcUyJJd/6JfPEZbOV/qTq6HnPBIixuP RxmEAvcpNmrjNka837Ue/Y+32zEnOZmXYfCuueHjmHCPdJphAwh9j52i5PZ7EUfJFfKY Mv8q60kdgnS4MT+wafymCcLXY/xs5QZ6dHuYta6AvkW8bljl84m2mw8Kp8ZsZaOVjIqA DTAPqVonzTxOmBIZlqizivMXZCgegUWHcAwCrstU56uFf8F7OQFUvQMddnmnXjdyehFg uGJQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=6bwlZ1ltdilbsw5OIOY7QuCRvbuSjDUomR5emtOx148=; b=hgYlNU7OFaf5s/WdHuY0NAdaJDeq+Cg6JuDQnICJV/vdD58iS1NCXofhI+Z7eXWwG3 JqPObl8hCIJw0271LjTtv3/ovLq4TISzn6xYXhFDnlbFa56UsHC1lVRXavfMqDC3GKhv p5z1DljMAjbG2l30+kAXSV1rC47PbdUt3X0TMp++9+V/XWP4RSNKXYPigPcLU8SyLUY7 27JJLpYKHnYqejXok1Y4T+k2UengKfBu+6FvdcHOLwTGov3PPtzKEHZd0qqr+FR8ONa0 XDM/ND4Rc6nq0pMMO4/zZ1Q3pouWz0ApHAUYn19TNgCXmDMpB6MoPm+w7Ezbwc+UO9qx fM/A== X-Gm-Message-State: AE9vXwOBMKzSM350UJTmI/I0pZhmyhE1gvCge4JSzDuks/1n+wglk9u89BdxgjiGS1xfqQmNh/g2cAP6POHKug== X-Received: by 10.129.46.77 with SMTP id u74mr16747126ywu.46.1473053595271; Sun, 04 Sep 2016 22:33:15 -0700 (PDT) MIME-Version: 1.0 Received: by 10.37.220.3 with HTTP; Sun, 4 Sep 2016 22:33:14 -0700 (PDT) From: Moon-Sang Lee Date: Mon, 5 Sep 2016 14:33:14 +0900 Message-ID: To: dev@dpdk.org Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.15 Subject: [dpdk-dev] sysfs permission problem when running dpdk app in lxc 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: Mon, 05 Sep 2016 05:33:16 -0000 I'm using ubuntu 16.04 LTS as my host and installed lxd on it. When I try to run my dpdk(2.2.0) app in the container, I got following error message. EAL: lcore 9 is ready (tid=17fd700;cpuset=[9]) EAL: lcore 3 is ready (tid=c915700;cpuset=[3]) EAL: lcore 11 is ready (tid=ffc700;cpuset=[11]) EAL: lcore 5 is ready (tid=27ff700;cpuset=[5]) EAL: lcore 7 is ready (tid=1ffe700;cpuset=[7]) EAL: lcore 13 is ready (tid=7fb700;cpuset=[13]) EAL: PCI device 0000:06:00.0 on NUMA socket -1 EAL: probe driver: 8086:10e8 rte_igb_pmd EAL: Not managed by a supported kernel driver, skipped EAL: PCI device 0000:06:00.1 on NUMA socket -1 EAL: probe driver: 8086:10e8 rte_igb_pmd EAL: Not managed by a supported kernel driver, skipped EAL: PCI device 0000:07:00.0 on NUMA socket -1 EAL: probe driver: 8086:10e8 rte_igb_pmd EAL: Cannot open /sys/class/uio/uio0/device/config: Permission denied EAL: Error - exiting with code: 1 Cause: Requested device 0000:07:00.0 cannot be used However, it seems ok of the permission when I list those files. I appreciate any comments. root@test4:~# cat /proc/mounts |grep sysfs sysfs /sys sysfs rw,relatime 0 0 root@test4:~# ls -al /sys/class/uio/uio0/device/config -rw-r--r-- 1 root root 4096 Sep 5 04:56 /sys/class/uio/uio0/device/config root@test4:~# ls -al /dev/uio0 crw-rw-rw- 1 root root 243, 0 Sep 5 04:16 /dev/uio0 root@test4:~# -- Moon-Sang Lee, SW Engineer Email: sang0627@gmail.com Wisdom begins in wonder. *Socrates*