O2 crashes in GPUDisplayBackendVulkan

O²
#1

Dear all,

I just tried to build O2 and it fails in GPUDisplayBackendVulkan.cxx, the relevant lines seem to be:

/home/sheckel/alice/sw/SOURCES/O2/dev/0/GPU/GPUTracking/display/GPUDisplayBackendVulkan.cxx: In instantiation of 'void setupDebugMessenger(VkInstance_T*&, VkDebugUtilsMessengerEXT_T*&, T&) [with T = o2::gpu::GPUDisplayBackendVulkan::createDevice()::<lambda(VkDebugUtilsMessageSeverityFlagBitsEXT, VkDebugUtilsMessageTypeFlagsEXT, const VkDebugUtilsMessengerCallbackDataEXT*, void*)>; VkInstance = VkInstance_T*; VkDebugUtilsMessengerEXT = VkDebugUtilsMessengerEXT_T*]':
/home/sheckel/alice/sw/SOURCES/O2/dev/0/GPU/GPUTracking/display/GPUDisplayBackendVulkan.cxx:335:66:   required from here
/home/sheckel/alice/sw/SOURCES/O2/dev/0/GPU/GPUTracking/display/GPUDisplayBackendVulkan.cxx:165:30: error: invalid user-defined conversion from 'o2::gpu::GPUDisplayBackendVulkan::createDevice()::<lambda(VkDebugUtilsMessageSeverityFlagBitsEXT, VkDebugUtilsMessageTypeFlagsEXT, const VkDebugUtilsMessengerCallbackDataEXT*, void*)>' to 'PFN_vkDebugUtilsMessengerCallbackEXT' {aka 'unsigned int (*)(VkDebugUtilsMessageSeverityFlagBitsEXT, unsigned int, const VkDebugUtilsMessengerCallbackDataEXT*, void*)'} [-fpermissive]
  165 |   createInfo.pfnUserCallback = debugCallback;
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~
/home/sheckel/alice/sw/SOURCES/O2/dev/0/GPU/GPUTracking/display/GPUDisplayBackendVulkan.cxx:300:24: note: candidate is: 'constexpr o2::gpu::GPUDisplayBackendVulkan::createDevice()::<lambda(VkDebugUtilsMessageSeverityFlagBitsEXT, VkDebugUtilsMessageTypeFlagsEXT, const VkDebugUtilsMessengerCallbackDataEXT*, void*)>::operator int (*)(VkDebugUtilsMessageSeverityFlagBitsEXT, VkDebugUtilsMessageTypeFlagsEXT, const VkDebugUtilsMessengerCallbackDataEXT*, void*)() const' (near match)
  300 |   auto debugCallback = [](VkDebugUtilsMessageSeverityFlagBitsEXT messageSeverity, VkDebugUtilsMessageTypeFlagsEXT messageType, const VkDebugUtilsMessengerCallbackDataEXT* pCallbackData, void* pUserData) {
      |                        ^
/home/sheckel/alice/sw/SOURCES/O2/dev/0/GPU/GPUTracking/display/GPUDisplayBackendVulkan.cxx:300:24: note:   no known conversion from 'int (*)(VkDebugUtilsMessageSeverityFlagBitsEXT, VkDebugUtilsMessageTypeFlagsEXT, const VkDebugUtilsMessengerCallbackDataEXT*, void*)' {aka 'int (*)(VkDebugUtilsMessageSeverityFlagBitsEXT, unsigned int, const VkDebugUtilsMessengerCallbackDataEXT*, void*)'} to 'PFN_vkDebugUtilsMessengerCallbackEXT' {aka 'unsigned int (*)(VkDebugUtilsMessageSeverityFlagBitsEXT, unsigned int, const VkDebugUtilsMessengerCallbackDataEXT*, void*)'}

Some information:

  • I am on Ubuntu 18.04
  • I have alidist/master, O2/dev and QualityControl/master from today
  • I try to compile with:
aliBuild build QualityControl --defaults o2

The full log can be found here.

I guess, @drohr is the one to ping here, at least I see from him a recent commit on this part in O2.

Thanks for any help, cheers,
Stefan

#2

ok, will check. That is probably related to my change in the visualization.
I assume Vulkan is not present in the CI container, so it was not tested in the CI.

#3

Argh, kann das nicht reproduzieren. Das scheint an der Vulkan API zu hängen.
Was für ein OS hast du? Was für ne GPU?

#4

OS, as written above, is Ubuntu 18.04.
The GPU might be the issue, my GPU is: none… at least not a real one, just on-board graphics, more precise: Intel® UHD Graphics 630 (CFL GT2)

#5

Perhaps 18.04 has too old Vulkan API, I will check if I can add a version check.
Can you try if https://github.com/AliceO2Group/AliceO2/pull/8216 solves your issue.
Can you sent me a list of all Ubuntu packages you have installed with vulkan in the name (case insensitive)?

#6

Hi @drohr, thanks for the quick help. I have a similar machine and the same system as Stefan. Saw the same error and the fix works!

Cheers,
Thomas

#7

Sorry, managed only now to test the fix. I can confirm what Thomas has written, also for me this solves the issue! Thanks a lot for the super quick fix! :slight_smile: