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KhronosGroup / Vulkan-ValidationLayers

Vulkan Validation Layers (VVL)
https://vulkan.lunarg.com/doc/sdk/latest/linux/khronos_validation_layer.html
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Bugs with CTS synchronization tests #8461

Open ziga-lunarg opened 2 weeks ago

ziga-lunarg commented 2 weeks ago

Running timeline semaphore tests in CTS reports UNASSIGNED-VkSemaphore-state-timeout and the message says This is most likely a validation bug.

One such test for example is dEQP-VK.synchronization.timeline_semaphore.device_host.write_copy_buffer_read_copy_buffer.buffer_16384

And the full message is:

UNASSIGNED-VkSemaphore-state-timeout(ERROR / SPEC): msgNum: 1474714163 - Validation Error: [ UNASSIGNED-VkSemaphore-state-timeout ] Object 0: handle = 0x40b43c0000000049, type = VK_OBJECT_TYPESEMAPHORE; | MessageID = 0x57e65a33 | vkWaitSemaphores(): pWaitInfo->pValues[0] Timeout waiting for timeline semaphore state to update. This is most likely a validation bug. completed.payload=0 wait_payload=141 Objects: 1 [0] 0x40b43c0000000049, type: 5, name: NULL

There are other VUIDs that follow, but I assume they are caused by this first one.

jeremyg-lunarg commented 2 weeks ago

I think this might be a test where many many semaphores a created and then it takes a very long time for them to be signaled. Possibly the timer for this error needs to be made longer.