Hi Rajesh, Can you please provide more details:
- Which DPDK version are you using? - dpdk-pdump is a secondary process and must be launched along with any primary process. Which is the primary process you are running ? is it something that you developed on your own/took something from DPDK examples (with/without extending it), etc ? Regards, Rami Rosen -----Original Message----- From: users [mailto:users-boun...@dpdk.org] On Behalf Of RAJESH KUMAR S.R Sent: Monday, March 12, 2018 12:25 To: users@dpdk.org Subject: [dpdk-users] [DPDK-PDUMP] Issue: RING: Cannot reserve memory Hi, I am new to dpdk. I'm trying to use dpdk-pdump tool. I'm able to capture packets on dpdk ports. But, I'm facing the following issue I'm getting a error "RING:Cannot reserve memory" while trying to restart the pdump tool or running 2 instances of pdump. I have also used the rte_eal_cleanup while exiting pdump main function. Output: * sudo /opt/pep/active/bin/dpdk-pdump -- --pdump 'port=0,queue=*,rx-dev=/tmp/rx.pcap,tx-dev=/tmp/tx.pcap'* [sudo] password for admin: EAL: Detected 2 lcore(s) EAL: Multi-process socket /var/run/.rte_unix_1061_ce297dfe759 EAL: Probing VFIO support... EAL: WARNING: Address Space Layout Randomization (ASLR) is enabled in the kernel. EAL: This may cause issues with mapping memory into secondary processes EAL: WARNING: cpu flags constant_tsc=yes nonstop_tsc=no -> using unreliable clock cycles ! EAL: PCI device 0000:00:03.0 on NUMA socket -1 EAL: Invalid NUMA socket, default to 0 EAL: probe driver: 1af4:1000 net_virtio EAL: PCI device 0000:00:04.0 on NUMA socket -1 EAL: Invalid NUMA socket, default to 0 EAL: probe driver: 1af4:1000 net_virtio EAL: PCI device 0000:00:05.0 on NUMA socket -1 EAL: Invalid NUMA socket, default to 0 EAL: probe driver: 1af4:1000 net_virtio EAL: Requested device 0000:00:05.0 cannot be used PMD: Initializing pmd_pcap for net_pcap_rx_0 PMD: Creating pcap-backed ethdev on numa socket -1 Port 2 MAC: 00 00 00 01 02 03 PMD: Initializing pmd_pcap for net_pcap_tx_0 PMD: Creating pcap-backed ethdev on numa socket -1 Port 3 MAC: 00 00 00 01 02 03 ^C Signal 2 received, preparing to exit... ##### PDUMP DEBUG STATS ##### -packets dequeued: 4 -packets transmitted to vdev: 4 -packets freed: 0 Restarting........ *> sudo /opt/pep/active/bin/dpdk-pdump -- --pdump 'port=0,queue=*,rx-dev=/tmp/rx.pcap,tx-dev=/tmp/tx.pcap'* EAL: Detected 2 lcore(s) EAL: Multi-process socket /var/run/.rte_unix_1073_cea9cc51241 EAL: Probing VFIO support... EAL: WARNING: Address Space Layout Randomization (ASLR) is enabled in the kernel. EAL: This may cause issues with mapping memory into secondary processes EAL: WARNING: cpu flags constant_tsc=yes nonstop_tsc=no -> using unreliable clock cycles ! EAL: PCI device 0000:00:03.0 on NUMA socket -1 EAL: Invalid NUMA socket, default to 0 EAL: probe driver: 1af4:1000 net_virtio EAL: PCI device 0000:00:04.0 on NUMA socket -1 EAL: Invalid NUMA socket, default to 0 EAL: probe driver: 1af4:1000 net_virtio EAL: PCI device 0000:00:05.0 on NUMA socket -1 EAL: Invalid NUMA socket, default to 0 EAL: probe driver: 1af4:1000 net_virtio EAL: Requested device 0000:00:05.0 cannot be used PMD: Initializing pmd_pcap for net_pcap_rx_0 PMD: Creating pcap-backed ethdev on numa socket -1 PMD: Initializing pmd_pcap for net_pcap_tx_0 PMD: Creating pcap-backed ethdev on numa socket -1 Segmentation fault *> sudo /opt/pep/active/bin/dpdk-pdump -- --pdump 'port=0,queue=*,rx-dev=/tmp/rx.pcap,tx-dev=/tmp/tx.pcap'* EAL: Detected 2 lcore(s) EAL: Multi-process socket /var/run/.rte_unix_1087_cec3ab006b1 EAL: Probing VFIO support... EAL: WARNING: Address Space Layout Randomization (ASLR) is enabled in the kernel. EAL: This may cause issues with mapping memory into secondary processes EAL: WARNING: cpu flags constant_tsc=yes nonstop_tsc=no -> using unreliable clock cycles ! EAL: PCI device 0000:00:03.0 on NUMA socket -1 EAL: Invalid NUMA socket, default to 0 EAL: probe driver: 1af4:1000 net_virtio EAL: PCI device 0000:00:04.0 on NUMA socket -1 EAL: Invalid NUMA socket, default to 0 EAL: probe driver: 1af4:1000 net_virtio EAL: PCI device 0000:00:05.0 on NUMA socket -1 EAL: Invalid NUMA socket, default to 0 EAL: probe driver: 1af4:1000 net_virtio EAL: Requested device 0000:00:05.0 cannot be used RING: Cannot reserve memory EAL: Error - exiting with code: 1 Cause: File exists:create_mp_ring_vdev:634 Hugepage info: cat /proc/meminfo | grep Huge AnonHugePages: 6144 kB HugePages_Total: 300 HugePages_Free: 0 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 2048 kB Can you please help me in finding the issue. Thanks, Rajesh kumar S R