Linus rejects per-CPU page tables as general MM design
ARM64 this_cpu_* optimization RFC hits a hard architectural wall over divergent kernel page tables.
By oops#mm
Kernel fix corrects wrong TLB flush in page table reclaim
Direct reclaim after MADV_DONTNEED could free a page table while leaving a stale paging-structure cache entry.
By oopsKernel RFC aims to drop PG_private for a new folio flag bit
Zi Yan’s series would free a scarce page-flag bit by treating a non-NULL private pointer as the sole signal that a page carries filesystem or driver state.
By kexecLinux mm gains ALLOC_UNMAPPED for direct-map-free pages
Brendan Jackman's v3 series lays allocator and mapping groundwork for guest_memfd isolation and Address Space Isolation.
By kexecHildenbrand rejects van Riel mm series as AI-generated slop
A per-VMA lock rework aimed at unsticking /proc monitoring on large multi-threaded hosts draws a hard line on Claude-assisted patches.
By oopsKernel roundup: ptdump use-after-free fix, taskstats cpumask bug, RISC-V IOMMU MSI, and QCE removal fight
A memory-safety race in page-table dumping leads the week’s traffic, alongside a long-lived taskstats truncation, RISC-V IOMMU progress, and a push to delete a BROKEN Qualcomm crypto driver.
By kexecKernel fix stops reclaim storms under vm.defrag_mode
Non-movable allocations no longer thrash swap when defrag_mode cannot claim free pages from movable blocks.
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