Question: error when running [Virtio-GPU Venus->vtest]

[Taylor Viktor]

Dear Developers:

I am referring to this document
https://docs.mesa3d.org/drivers/venus.html#vtest to develop vulkan related
functions, but every time I run vulkaninfo or vkcube some errors occur.

virgl_test_server prints the following:

gl_version 46 - core profile enabled vtest_client_dispatch_commands: client
context created. client failed: VTEST_CLIENT_ERROR_INPUT_READ

Running vulkaninfo prints the following:

WARNING: [Loader Message] Code 0 : terminator_CreateInstance: Failed to
CreateInstance in ICD 0. Skipping ICD. Cannot create Vulkan instance. This
problem is often caused by a faulty installation of the Vulkan driver or
attempting to use a GPU that does not support Vulkan. ERROR at
./vulkaninfo/vulkaninfo.h:649:vkCreateInstance failed with
ERROR_INCOMPATIBLE_DRIVER

Running vkcube prints the following:

Cannot find a compatible Vulkan installable client driver (ICD). Please
look at the Getting Started guide for additional information.

After debugging, I found that the error occurred when calling the system
function res = read(fd, ptr, left) in the vtest_block_read(struct
vtest_input *input, void *buf, int size) function, it returned 0 to the
variable res, but The variable left passed in is 8. This is only true if(res
== left).

And I checked the Requirements by running below command:

 vulkaninfo | grep "Vulkan Instance Version"
 vulkaninfo | grep VK_EXT_external_memory_dma_buf
 vulkaninfo | grep VK_EXT_image_drm_format_modifier
 vulkaninfo | grep VK_EXT_queue_family_foreign
 uname -r

the output:

Vulkan Instance Version: 1.3.204 VK_EXT_external_memory_dma_buf : extension
revision 1 VK_EXT_image_drm_format_modifier : extension revision 2
VK_EXT_queue_family_foreign
: extension revision 1 5.15.0-52-generic

Except the graphics card is GTX 1060 3GB, I think my other requirements are
met. I use vtest, which can ignore the kernel version according to the
documentation.

   -

   When you were testing, what versions of virglrenderer and mesa were you
   using? If you guys know, please let me know and I will try it again.


   -

   If you don't know the specific version, can you give me some debugging
   or method suggestions?

Looking forward to your reply, thank you very much
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/mesa-dev/attachments/20221103/c7a5f90c/attachment.htm>