VK-RZV2L board running AI demo problem with udmabuf


We are trying to run AI demos on vk-rzv2l board and the following error appear:

root@vkrzv2l:~/tvm# ./object_detection
[ERROR] Failed to open udmabuf0/phys_addr : errno=2

How to add udmabuf ?



  • Hello Teodor,

    the udmabuf0 is added by the DRP-AI support package. Did you add that ?

    Additionally, please check the VLP release version. It's important to use the same version for the Linux package and SDK.
    My recommendation is to use the latest version (VLP 3.0.4) and the corresponding DRP-AI support package, of course.

    Kind Regards,


  • Hi Teodor,
    Is your issue resolved? If so, then could i go on and mark the answer as verified? ?
    It is very useful for our community because it may help other users who have a similar issue.
    Thank you for your time.
    Kind Regards.