3 ms·
I thought that the device will inc the reference count to that chunk of memory, so it won't be allocated to another process AFAIK.
by monocasa 5y ago
I thought that the device will inc the reference count to that chunk of memory, so it won't be allocated to another process AFAIK.
- caf 5y agoThis is right. Those physical pages get pinned by the device. It's not like it's a new issue, anyway - physical backing pages can be dropped and re-used even if the process is still running, so the reference counting always had to exist.