From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from out20-2.mail.aliyun.com (out20-2.mail.aliyun.com [115.124.20.2]) by dpdk.org (Postfix) with ESMTP id C84C51B3FB for ; Fri, 4 Jan 2019 04:47:03 +0100 (CET) X-Alimail-AntiSpam: AC=CONTINUE; BC=0.04436296|-1; CH=green; FP=0|0|0|0|0|-1|-1|-1; HT=e01a16378; MF=hfli@netitest.com; NM=1; PH=DS; RN=3; RT=3; SR=0; TI=SMTPD_---.DhBMTtk_1546573607; Received: from PC20180210SSYA(mailfrom:hfli@netitest.com fp:SMTPD_---.DhBMTtk_1546573607) by smtp.aliyun-inc.com(10.147.40.44); Fri, 04 Jan 2019 11:46:47 +0800 From: To: Cc: , References: In-Reply-To: Date: Fri, 4 Jan 2019 11:46:48 +0800 Message-ID: <000f01d4a3e0$1f6bb060$5e431120$@netitest.com> MIME-Version: 1.0 X-Mailer: Microsoft Outlook 16.0 Thread-Index: AdSgNnVYbnh0EyECSIOUYUPN52hk1QDqUijA Content-Language: zh-cn X-Mailman-Approved-At: Wed, 09 Jan 2019 17:55:28 +0100 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Content-Filtered-By: Mailman/MimeDel 2.1.15 Subject: [dpdk-users] DPDK procedure start Error: "PMD: Could not add multiq qdisc (17): File exists" 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: , X-List-Received-Date: Fri, 04 Jan 2019 03:51:51 -0000 Hi Matan, Could you help us for below error? PMD: Could not add multiq qdisc (17): File exists PMD: dtap0: failed to create multiq qdisc. PMD: Disabling rte flow support: File exists(17) PMD: Remote feature requires flow support. PMD: TAP Unable to initialize net_tap_net_vdev_netvsc0_id0 EAL: Driver cannot attach the device (net_tap_net_vdev_netvsc0_id0) PMD: net_failsafe: sub_device 1 probe failed (No such file or directory) PMD: net_failsafe: MAC address is 06:5f:a6:0a:b4:f9 vdev_probe(): failed to initialize : PMD: net_failsafe: MAC address is 06:5f:a6:0a:b4:f9 device EAL: Bus (vdev) probe failed. Our DPDK procedure want to deploy on Hyper-v and Azure Cloud, so we try it on Hyper-v firstly. It need start 2 processes, a client process use port1, a server process use port2, port1 and port2 in one internal subnet on a virtual switch, But only one process can be started successfully, the other said error, "PMD: Could not add multiq qdisc (17): File exists", our procedure is running well on Vmware/KVM/ASW, is there any help for this? Below is our env: OS: Windows 10 and Hyper-V on it Guest OS: CentOS7.6(Upgrade kernel to 4.20.0) DPDK version: 18.02.2 # uname -a Linux localhost.localdomain 4.20.0-1.el7.elrepo.x86_64 #1 SMP Sun Dec 23 20:11:51 EST 2018 x86_64 x86_64 x86_64 GNU/Linux root:/# ifconfig -a bond0: flags=5122 mtu 1500 ether 46:28:ec:c8:7a:74 txqueuelen 1000 (Ethernet) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 0 bytes 0 (0.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 lo: flags=73 mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10 loop txqueuelen 1000 (Local Loopback) RX packets 75 bytes 6284 (6.1 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 75 bytes 6284 (6.1 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 mgmt1: flags=4163 mtu 1500 inet 192.168.16.130 netmask 255.255.255.0 broadcast 192.168.16.255 inet6 fe80::78e3:1af8:3333:ff45 prefixlen 64 scopeid 0x20 ether 00:15:5d:10:85:14 txqueuelen 1000 (Ethernet) RX packets 5494 bytes 706042 (689.4 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 2163 bytes 438205 (427.9 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 mgmt2: flags=4163 mtu 1500 ether 00:15:5d:10:85:15 txqueuelen 1000 (Ethernet) RX packets 3131 bytes 518243 (506.0 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 0 bytes 0 (0.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 port1: flags=4675 mtu 1500 ether 00:15:5d:10:85:16 txqueuelen 1000 (Ethernet) RX packets 1707 bytes 163778 (159.9 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 693 bytes 70666 (69.0 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 port2: flags=4675 mtu 1500 ether 00:15:5d:10:85:17 txqueuelen 1000 (Ethernet) RX packets 900 bytes 112256 (109.6 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 1504 bytes 122428 (119.5 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 root:/# ethtool -i port1 driver: hv_netvsc version: firmware-version: N/A expansion-rom-version: bus-info: supports-statistics: yes supports-test: no supports-eeprom-access: no supports-register-dump: no supports-priv-flags: no root:/# ethtool -i port2 driver: hv_netvsc version: firmware-version: N/A expansion-rom-version: bus-info: supports-statistics: yes supports-test: no supports-eeprom-access: no supports-register-dump: no supports-priv-flags: no root:/# Start server process successfully # ./VM_DPDK -l 3 -n 4 --vdev="net_vdev_netvsc1,iface=port2" --socket-mem 1500 --file-prefix server EAL: Detected 4 lcore(s) EAL: No free hugepages reported in hugepages-1048576kB EAL: Multi-process socket /var/log/.server_unix EAL: Probing VFIO support... EAL: WARNING: cpu flags constant_tsc=yes nonstop_tsc=no -> using unreliable clock cycles ! PMD: net_failsafe: Initializing Fail-safe PMD for net_failsafe_net_vdev_netvsc1_id0 PMD: net_failsafe: Creating fail-safe device on NUMA socket 0 PMD: Initializing pmd_tap for net_tap_net_vdev_netvsc1_id0 as dtap0 PMD: net_failsafe: MAC address is 00:15:5d:10:85:17 Concorrently start client process failed # ./VM_DPDK -l 2 -n 4 --vdev="net_vdev_netvsc0,iface=port1" --socket-mem 1500 --file-prefix client EAL: Detected 4 lcore(s) EAL: No free hugepages reported in hugepages-1048576kB EAL: Multi-process socket /var/log/.client_unix EAL: Probing VFIO support... EAL: WARNING: cpu flags constant_tsc=yes nonstop_tsc=no -> using unreliable clock cycles ! PMD: net_failsafe: Initializing Fail-safe PMD for net_failsafe_net_vdev_netvsc0_id0 PMD: net_failsafe: Creating fail-safe device on NUMA socket 0 PMD: Initializing pmd_tap for net_tap_net_vdev_netvsc0_id0 as dtap0 PMD: Could not add multiq qdisc (17): File exists PMD: dtap0: failed to create multiq qdisc. PMD: Disabling rte flow support: File exists(17) PMD: Remote feature requires flow support. PMD: TAP Unable to initialize net_tap_net_vdev_netvsc0_id0 EAL: Driver cannot attach the device (net_tap_net_vdev_netvsc0_id0) PMD: net_failsafe: sub_device 1 probe failed (No such file or directory) PMD: net_failsafe: MAC address is 06:5f:a6:0a:b4:f9 vdev_probe(): failed to initialize : PMD: net_failsafe: MAC address is 06:5f:a6:0a:b4:f9 device EAL: Bus (vdev) probe failed. Thanks and Regards, Jack