Hi, On Mon, Mar 10, 2025 at 03:16:53PM +0100, Christian König wrote: > [Adding Ben since we are currently in the middle of a discussion > regarding exactly that problem] > > Just for my understanding before I deep dive into the code: This uses > a separate dmem cgroup and does not account against memcg, don't it? Yes. The main rationale being that it doesn't always make sense to register against memcg: a lot of devices are going to allocate from dedicated chunks of memory that are either carved out from the main memory allocator, or not under Linux supervision at all. And if there's no way to make it consistent across drivers, it's not the right tool. Maxime
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