[dpdk-dev] TAP PMD does not work in 17.05

Pascal Mazon pascal.mazon at 6wind.com
Fri Jun 23 13:51:13 CEST 2017


Hi Chillance, Ferruh,

Can you give the complete command line you used, with output? 
(typically, are you using the remote feature)

As Ferruh said, it may be that you don't have the module loaded.
However in that case there should have been an error message earlier, 
like "Unable to create TAP interface". Hence the need for a complete trace.

What's your kernel version?

Best regards,
Pascal


On 06/23/2017 01:28 PM, Ferruh Yigit wrote:
> On 6/22/2017 8:05 AM, Chillance Zen wrote:
>> it always says something like this:
>>
>> PMD: tap1234: ioctl(35092) failed with error: No such device
>> PMD: Add queue to TAP tap1234 for qid 0
>> PMD: tap1234: ioctl(35108) failed with error: Cannot assign requested
>> address
>> PMD: tun_alloc(tap1234, 0) failed
>> PMD: tap1234: ioctl(35092) failed with error: No such device
>>
>> did any one ever meet this before?
>>
> Cc: Pascal
>
> I tried with latest code and 17.05 release and not observed the error.
>
> - Is this released 17.05 or any stable release version?
> - Is tun kernel module inserted?



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