[dpdk-users] error running two instances of pktgen

Stefano Salsano stefano.salsano at uniroma2.it
Thu Jun 28 10:12:22 CEST 2018

Il 2018-06-28 09:33, Muhammad Zain-ul-Abideen ha scritto:
> Dear Stefano,
> It clearly states in second para
> *"Setup if pktgen and your application you have to startup each one a 
> bit differently to make sure they share the resources like memory and 
> the ports. I will use two Pktgen running on the same machine, which just 
> means you have to setup your application as one of the applications.*"
> You can do that use these cli arguments
> --proc-type auto

Dear Muhammad,
thank you for your help!

I've now tried to run

sudo -E ./app/x86_64-native-linuxapp-gcc/pktgen -l 5-8 -n 3 
--file-prefix pg0 --proc-type auto -b 06:00.0 -- -P -m "1.0"

and then

sudo -E ./app/x86_64-native-linuxapp-gcc/pktgen -l 0-4 -n 3 
--file-prefix pg1 --proc-type auto -b 06:00.1 -- -P -m "1.0"

but I keep receiving the same error (see below)

in the output text I find for both cases:
EAL: Auto-detected process type: PRIMARY

so I tried to set --proc-type secondary in the second command
I first received an error suggesting "It is recommended to disable ASLR 
in the kernel", which I did with  "echo 0 | sudo tee 

now I receive the following error in the second command with --proc-type 

EAL: Detected 32 lcore(s)
EAL: Detected 2 NUMA nodes
EAL: Multi-process socket /var/run/dpdk/pg1/mp_socket_12222_2a4c8375d5acf8
EAL: failed to send to (/var/run/dpdk/pg1/mp_socket) due to Connection 
EAL: Fail to send request /var/run/dpdk/pg1/mp_socket:bus_vdev_mp
vdev_scan(): Failed to request vdev from primary
EAL: Probing VFIO support...
EAL: Could not map memory from primary process
EAL: FATAL: Cannot init memory

EAL: Cannot init memory

any further suggestion ?

thank you

error with --proc-type auto

Create: Default TX  0:0  - Memory used (MBUFs 16384 x (size 2176 + Hdr 
128)) + 192 =  36865 KB, headroom 128
!PANIC!: Cannot create mbuf pool (Default TX  0:0) port 0, queue 0, 
nb_mbufs 16384, socket_id 0: No such file or directory
PANIC in pktgen_mbuf_pool_create():
Cannot create mbuf pool (Default TX  0:0) port 0, queue 0, nb_mbufs 
16384, socket_id 0: No such file or directory6: 
[./app/x86_64-native-linuxapp-gcc/pktgen(_start+0x29) [0x466139]]
5: [/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf0) 
4: [./app/x86_64-native-linuxapp-gcc/pktgen(main+0x598) [0x460388]]
3: [./app/x86_64-native-linuxapp-gcc/pktgen(pktgen_config_ports+0x18ad) 
2: [./app/x86_64-native-linuxapp-gcc/pktgen(__rte_panic+0xc3) [0x45769b]]
1: [./app/x86_64-native-linuxapp-gcc/pktgen(rte_dump_stack+0x2b) [0x50aadb]]

Stefano Salsano
Professore Associato
Dipartimento Ingegneria Elettronica
Universita' di Roma Tor Vergata
Viale Politecnico, 1 - 00133 Roma - ITALY


E-mail  : stefano.salsano at uniroma2.it
Cell.   : +39 320 4307310
Office  : (Tel.) +39 06 72597770 (Fax.) +39 06 72597435

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