vmaFreeMemory generate a assert about vulkanmemoryallocator

[adam-sawicki-a]

Please provide more information so I can reproduce the bug. Also please check documentation to make sure you use the library properly.

How do you allocate memory? If you do it using functions vmaCreateBuffer, vmaCreateImage, then you get two objects from each function - VkBuffer/VkImage and VmaAllocation and you need to pass them both to vmaDestroyBuffer, vmaDestroyImage. There is no need to call vmaFreeMemory next to that.

[Zino2201]

Okay,

So first I checked the documentation and I do everything right normally:

NOTE: It's a persistant mapped uniform buffer

• First I'm creating the Buffer using vmaCreateBuffer
• After every frame I memcpy to it's data
• At the end I vmaDestroyBuffer and vmaFreeMemory

So first, I removed the vmaFreeMemory thanks by the way for the info!
But now the assert message is

Assertion failed: m_Metadata.IsEmpty() && "Some allocations were not freed before destruction of this memory block!", file c:\users\zino2201\documents\vulkanlearn\project\include\thirdparty\vma\vkmemalloc.h, line 6291

which I don't understand correctly because I am sure to vmaDestroyBuffer all buffers and allocations in my code. If needed, I can send you the code.

Thanks alot for the help, I really appreciate this library.

[adam-sawicki-a]

Please make sure that you free every VmaAllocation that you create using vmaCreateImage or vmaCreateBuffer, by calling appropriate vmaDestroyImage, vmaDestroyBuffer. Make sure that you pass non-null allocation to them. You can also attach string names to your allocations and then print the list of all allocations to JSON format. Try to do it before you destroy allocator object, or use debugger to identify which allocation remains unfreed.

[Zino2201]

Okay after some research I found that I don't have destroyed a staged buffer... A very stupid mistake! Thanks for your help!