i am trying to get Vulkan running on my machine for development purposes.
I am running Ubuntu 16.04 on a Lenovo Edge E145 with AMD A4-5000 APU and Kabini [Radeon HD 8330] Graphics. I am using the current AMDGPU-Pro Driver Version 16.30.
When running the "cube" example from the VulkanSDK Version 126.96.36.199 my system freezes. To be precise, the window manager and all GUI elements stop responding, but i can still connect to the machine using SSH. Using the command line via SSH works fine. I can remotely kill the stuck "cube" process, but i don't seem to be able to remotely restart the window manager.
The "cube" example getting stuck seems to be a bug in the Vulkan driver, or somewhere on the way down to the Kernel amdgpu driver.
Remotely starting GDB on the cube process, i get the following backtrace:
#0 0x00007f0755336687 in ioctl () at ../sysdeps/unix/syscall-template.S:84
#1 0x00007f07532afe8f in drmIoctl () from /usr/lib/x86_64-linux-gnu/amdgpu-pro/libdrm.so.2
#2 0x00007f0753a45f63 in amdgpu_cs_query_fence_status () from /usr/lib/x86_64-linux-gnu/amdgpu-pro/libdrm_amdgpu.so.1
#3 0x00007f0753ef65ab in ?? () from /usr/lib/x86_64-linux-gnu/amdvlk64.so
#4 0x00007f0753efa67b in ?? () from /usr/lib/x86_64-linux-gnu/amdvlk64.so
#5 0x00007f075449807d in ?? () from /usr/lib/x86_64-linux-gnu/amdvlk64.so
#6 0x00007f0755920e19 in vkQueueWaitIdle (queue=0x178d180) at /home/lunarg/Development/LinuxSDK/Vulkan-LoaderAndValidationLayers/loader/trampoline.c:956
#7 0x0000000000405471 in demo_draw (demo=0x7ffe63f66c60) at /home/sergej/Downloads/vulkan/VulkanSDK/188.8.131.52/examples/cube.c:793
#8 0x0000000000409600 in demo_run_xcb (demo=0x7ffe63f66c60) at /home/sergej/Downloads/vulkan/VulkanSDK/184.108.40.206/examples/cube.c:2247
#9 0x000000000040b7ea in main (argc=1, argv=0x7ffe63f679c8) at /home/sergej/Downloads/vulkan/VulkanSDK/220.127.116.11/examples/cube.c:3155
Using the program strace i can see that the process is stuck on the following ioctl:
ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x64, 0x49, 0x20)
I am attaching outputs of a GDB session, strace, vulkaninfo and the dmesg output. For reasons of hardware identification i am also attaching output of lspci and cpuinfo.
Steps to reproduce this behaviour:
- Install Ubuntu 16.04
- Install AMDGPU-PRO 16.30 and the VulkanSDK using the How-Tos on AMDGPU-PRO Driver for Linux® – Release Notes
- Compile the examples in the VulkanSDK via "./build_examples.sh" (also append " -DCMAKE_BUILD_TYPE=Debug" to the cmake line in the build_examples.sh script)
- Run "cube" executable in "VulkanSDK/18.104.22.168/examples/build/"
- Wait until the cube stops rotating => cube process and window manager now are stuck.