[dpdk-users] error running two instances of pktgen

[Stefano Salsano <stefano.salsano@uniroma2.it>]

Hi,

we are trying to run two instances of pktgen-dpdk on the same host, each 
one working on one network interface

we use the following commands to run pktgen:

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

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

each one is working separately, but if we run the second one when the 
first one is running (or vice-versa), we receive this error :

     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) 
[0x7fb458c89830]]
4: [./app/x86_64-native-linuxapp-gcc/pktgen(main+0x598) [0x460388]]
3: [./app/x86_64-native-linuxapp-gcc/pktgen(pktgen_config_ports+0x18ad) 
[0x491aed]]
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]]

we are using
-- Pktgen Ver: 3.5.1 (DPDK 18.08.0-rc0)  Powered by DPDK
** Version: DPDK 18.08.0-rc0, Command Line Interface with timers

are we doing something wrong?

Stefano

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

http://netgroup.uniroma2.it/Stefano_Salsano/

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