Post Syndicated from original https://lwn.net/Articles/932070/

Memory control groups (or “memcgs”) allow an administrator to manage the
memory resources given to the processes running on a system. Often,
though, memcgs seem to have memory-use problems of their own, and that has
made them into a recurring Linux Storage, Filesystem, and Memory-Management
Summit topic since at least 2019. The topic returned at the 2023 event with a focus on the
handling of shared, anonymous memory. The quirks associated with this
memory type, it seems, can subject systems to an unpleasant sort of zombie
invasion; a session in the memory-management track led by T.J. Mercier,
Yosry Ahmed, and Chris Li discussed possible solutions.