So there is a vulkan wrapper called vulkano (written in rust), and one test case in particular fails on anv.

The code snippet allocates more memory than reported by vkMemoryHeap.size, but in multiple allocations. I would expect this to fail with VK_ERROR_OUT_OF_DEVICE_MEMORY, but it doesn't.

I currently only have a rust code snippet, but from the code it should be obvious what's happening under the hood:

    #[test]
    #[ignore] // TODO: test fails for now on Mesa+Intel
    fn oom_multi() {
        let (device, _) = gfx_dev_and_queue!();
        let mem_ty = device
            .physical_device()
            .memory_types()
            .filter(|m| !m.is_lazily_allocated())
            .next()
            .unwrap();
        let heap_size = mem_ty.heap().size();

        let mut allocs = Vec::new();

        for _ in 0 .. 4 {
            match DeviceMemory::alloc(device.clone(), mem_ty, heap_size / 3) {
                Err(DeviceMemoryAllocError::OomError(OomError::OutOfDeviceMemory)) => return, // test succeeded
                Ok(a) => allocs.push(a),
                _ => (),
            }
        }

        panic!()
    }