[dpdk-users] [DPDK-PDUMP] Issue: RING: Cannot reserve memory
Rosen, Rami
rami.rosen at intel.com
Sat Mar 17 16:58:58 CET 2018
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-bounces at dpdk.org] On Behalf Of RAJESH KUMAR S.R
Sent: Monday, March 12, 2018 12:25
To: users at 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
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