[dpdk-users] dpdk-pdump: pdump_create_client_socket fails to run along with kni app

[gowrishankar muthukrishnan]

Hi,
I am trying to run dpdk-pdump along with KNI app (in current master ie 
17.05
rc2). I find dpdk-pdump crashing as below.

KNI execution:

./examples/kni/build/kni -l 4,5,6,7 --socket-mem 1024 -- -P -p 0x3 
--config="(0,4,5),(1,6,7)"
EAL: Detected 32 lcore(s)
EAL: No free hugepages reported in hugepages-1048576kB
EAL: Probing VFIO support...
EAL: VFIO support initialized
EAL: PCI device 0000:0e:00.0 on NUMA socket 0
EAL:   probe driver: 8086:10fb net_ixgbe
EAL:   using IOMMU type 1 (Type 1)
EAL: Ignore mapping IO port bar(2) addr: 2fc1
EAL: PCI device 0000:0e:00.1 on NUMA socket 0
EAL:   probe driver: 8086:10fb net_ixgbe
EAL: Ignore mapping IO port bar(2) addr: 2fe1
APP: Initialising port 0 ...
KNI: pci: 0e:00:00      8086:10fb
APP: Initialising port 1 ...
KNI: pci: 0e:00:01      8086:10fb

Checking link status
.done
Port 0 Link Up - speed 10000 Mbps - full-duplex
Port 1 Link Up - speed 10000 Mbps - full-duplex
APP: Lcore 5 is writing to port 0
APP: Lcore 6 is reading from port 1
APP: Lcore 7 is writing to port 1
APP: Lcore 4 is reading from port 0

dpdk pdump execution:

dpdk-pdump -- --pdump 'port=0,queue=*,rx-dev=/tmp/rx.pcap'
EAL: Detected 32 lcore(s)
EAL: Probing VFIO support...
EAL: VFIO support initialized
EAL: WARNING: Address Space Layout Randomization (ASLR) is enabled in 
the kernel.
EAL:    This may cause issues with mapping memory into secondary processes
EAL: PCI device 0000:0e:00.0 on NUMA socket 0
EAL:   probe driver: 8086:10fb net_ixgbe
EAL: Ignore mapping IO port bar(2) addr: 2fc1
EAL: PCI device 0000:0e:00.1 on NUMA socket 0
EAL:   probe driver: 8086:10fb net_ixgbe
EAL: Ignore mapping IO port bar(2) addr: 2fe1
PMD: Initializing pmd_pcap for net_pcap_rx_0
PMD: Creating pcap-backed ethdev on numa socket 4294967295
Port 2 MAC: 00 00 00 01 02 03
PDUMP: failed to send to server:Connection refused, 
pdump_create_client_socket:702
PDUMP: client request for pdump enable/disable failed
PDUMP: failed to send to server:Connection refused, 
pdump_create_client_socket:702
PDUMP: client request for pdump enable/disable failed
EAL: Error - exiting with code: 1
   Cause: Unknown error -1

Has this worked before with KNI  or I am doing something not supported ?.
Before checking further, I just wanted to check with anyone 
trying/fixing it.

Thanks,
Gowrishankar