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

[Arseniy Zaostrovnykh <arseniy.zaostrovnykh@epfl.ch>]

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.
>>
>>
>

-- 
Respectfully,
Arseniy.