Re: [dpdk-users] error running l3fwd on kvm

[Mario Carrillo <mario.alfredo.c.arevalo@intel.com>]

This is the configuration that I'm using for running the l3fwd example
./build/l3fwd -c 0x3 -n 1 -d librte_pmd_virtio.so -- -p 0x3 
--config="(0,0,0),(1,0,1)"

and about environment
  Hugepagesize:       2048 kB

echo 1024 > /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages

echo 1024 > 
/sys/devices/system/node/node0/hugepages/hugepages-2048kB/nr_hugepages

what do you think?

Thanks.
Mario.


On 11/12/2015 10:48 AM, Arseniy Zaostrovnykh wrote:
> Another possible cause just come to my mind:
> some drivers do not support more than 1 queues in each direction. You 
> have 2 transmission queues (nb_txq=2) here.
>
> On 12.11.2015 17:46, Arseniy Zaostrovnykh wrote:
>> You may lack memory. Make sure you are allocating enough hugepages 
>> (at least 1Gb)
>>
>> On 12.11.2015 17:13, Arevalo, Mario Alfredo C wrote:
>>> From: Arevalo, Mario Alfredo C
>>> Sent: Thursday, November 12, 2015 7:54 AM
>>> To: users@dpdk.org
>>> Subject: error running l3fwd on kvm
>>>
>>>      Hello guys, I'm trying to run l3fwd, it works very well when I 
>>> run it in bare-metal, however
>>> when I try to run in a Virtual Machine I get the next error:
>>>
>>> EAL: Detected lcore 0 as core 0 on socket 0
>>> EAL: Detected lcore 1 as core 0 on socket 0
>>> EAL: Detected lcore 2 as core 1 on socket 0
>>> EAL: Detected lcore 3 as core 1 on socket 0
>>> EAL: Detected lcore 4 as core 2 on socket 0
>>> EAL: Detected lcore 5 as core 2 on socket 0
>>> EAL: Detected lcore 6 as core 3 on socket 0
>>> EAL: Detected lcore 7 as core 3 on socket 0
>>> EAL: Support maximum 128 logical core(s) by configuration.
>>> EAL: Detected 8 lcore(s)
>>> EAL: VFIO modules not all loaded, skip VFIO support...
>>> EAL: Setting up physically contiguous memory...
>>> EAL: Ask a virtual area of 0x600000 bytes
>>> EAL: Virtual area found at 0x7f9905000000 (size = 0x600000)
>>> EAL: Ask a virtual area of 0x200000 bytes
>>> EAL: Virtual area found at 0x7f9904c00000 (size = 0x200000)
>>> EAL: Ask a virtual area of 0x35400000 bytes
>>> EAL: Virtual area found at 0x7f98cf600000 (size = 0x35400000)
>>> EAL: Requesting 430 pages of size 2MB from socket 0
>>> EAL: TSC frequency is ~2294687 KHz
>>> EAL: WARNING: cpu flags constant_tsc=yes nonstop_tsc=no -> using 
>>> unreliable clock cycles !
>>> EAL: open shared lib librte_pmd_virtio.so
>>> EAL: Master lcore 0 is ready (tid=634d1c0;cpuset=[0])
>>> EAL: lcore 1 is ready (tid=cf3f6700;cpuset=[1])
>>> EAL: PCI device 0000:00:02.0 on NUMA socket -1
>>> EAL:   probe driver: 1af4:1000 rte_virtio_pmd
>>> EAL: PCI device 0000:00:03.0 on NUMA socket -1
>>> EAL:   probe driver: 1af4:1000 rte_virtio_pmd
>>> EAL: PCI device 0000:00:04.0 on NUMA socket -1
>>> EAL:   probe driver: 1af4:1000 rte_virtio_pmd
>>> EAL: PCI device 0000:00:05.0 on NUMA socket -1
>>> EAL:   probe driver: 1af4:1000 rte_virtio_pmd
>>> Initializing port 0 ... Creating queues: nb_rxq=1 nb_txq=2... EAL: 
>>> Error - exiting with code: 1
>>>    Cause: Cannot configure device: err=-22, port=0
>>>
>>> has  someone seen  this error before?
>>>
>>> Thank you.
>>> Mario.
>>>
>>>
>>
>