Linux mm patchset unifies hot-page promotion for tiered memory
AMD's pghot v8 consolidates access tracking from hint faults and hardware samplers, then drives batched promotions via per-node kernel threads.
By kexec#numa
Kernel restores NUMA balancing for shmem after accidental disable
The fix unsticks tiered-memory workloads but can slow KVM guests that relied on the old broken skip.
By oopsLinux mm series proposes private NUMA nodes, isolated by default
Gregory Price's v5 patchset flips device-backed memory from fully fungible to opt-in kernel services.
By kexec