From mboxrd@z Thu Jan 1 00:00:00 1970 From: Olivier Deme Subject: freeze with dpdk-2.0.0 Date: Tue, 14 Apr 2015 18:15:34 +0100 Message-ID: <552D4B36.4030209@druidsoftware.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: quoted-printable To: "dev-VfR2kkLFssw@public.gmane.org" Return-path: List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces-VfR2kkLFssw@public.gmane.org Sender: "dev" Hi, I am trying to use DPDK-2.0.0 on Fedora 20 running in a qemu virtual=20 machine. After loading the uio and igb_uio module and setting up hugepages, I try=20 to run the helloworld demo application. As soon as the helloworld displays the "hello from core 1, hello from=20 core 0" messages, I loose all network connectivity to the VM. If I try to run the helloworld application remotely the output freezes=20 after the following: # ./build/helloworld -c 3 -n 2 EAL: Detected lcore 0 as core 0 on socket 0 EAL: Detected lcore 1 as core 0 on socket 0 EAL: Detected lcore 2 as core 0 on socket 0 EAL: Detected lcore 3 as core 0 on socket 0 EAL: Support maximum 128 logical core(s) by configuration. EAL: Detected 4 lcore(s) EAL: VFIO modules not all loaded, skip VFIO support... EAL: Setting up memory... EAL: Ask a virtual area of 0x7000000 bytes EAL: Virtual area found at 0x7f273be00000 (size =3D 0x7000000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7f273ba00000 (size =3D 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7f273b600000 (size =3D 0x200000) EAL: Ask a virtual area of 0xc00000 bytes EAL: Virtual area found at 0x7f273a800000 (size =3D 0xc00000) EAL: Requesting 64 pages of size 2MB from socket 0 EAL: TSC frequency is ~1995193 KHz EAL: WARNING: cpu flags constant_tsc=3Dyes nonstop_tsc=3Dno -> using=20 unreliable clock cycles ! EAL: Master lcore 0 is ready (tid=3D449e9900;cpuset=3D[0]) PMD: ENICPMD trace: rte_enic_pmd_init EAL: lcore 1 is ready (tid=3D3a7ff700;cpuset=3D[1]) If I try to restart the network services, I get the error from syslog: BUG: soft lockup - CPU#2 stuck for 22s! The network devices exposed to the VM are 2 BCM5719 interfaces + 2=20 82599ES interfaces: 02:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5719=20 Gigabit Ethernet PCIe (rev 01) 02:00.1 Ethernet controller: Broadcom Corporation NetXtreme BCM5719=20 Gigabit Ethernet PCIe (rev 01) 0d:00.0 Ethernet controller: Intel Corporation 82599ES 10-Gigabit=20 SFI/SFP+ Network Connection (rev 01) 0d:00.1 Ethernet controller: Intel Corporation 82599ES 10-Gigabit=20 SFI/SFP+ Network Connection (rev 01) Within the VM, lspci shows: 00:03.0 Ethernet controller: Red Hat, Inc Virtio network device 00:04.0 Ethernet controller: Red Hat, Inc Virtio network device 00:05.0 Ethernet controller: Red Hat, Inc Virtio network device 00:06.0 Ethernet controller: Red Hat, Inc Virtio network device After loading the kernel modules, I bind the interfaces to DPDK with: /root/dpdk-2.0.0/tools/dpdk_nic_bind.py --bind=3Digb_uio 00:05.0 /root/dpdk-2.0.0/tools/dpdk_nic_bind.py --bind=3Digb_uio 00:06.0 Would you know what is causing this? I haven't been able to try DPDK 1.8.0 because it doesn't compile on the=20 latest Fedora Server 20. Thanks for your help, Olivier. --=20 *Olivier Dem=C3=A9* *Druid Software Ltd.* *Tel: +353 1 202 1831* *Email: odeme-UsMDwKmwmRBx67MzidHQgQC/G2K4zDHf@public.gmane.org * *URL: http://www.druidsoftware.com* Druid Software: Monetising enterprise small cells solutions. Druid_Footer_Logo