Who owns the patch when the model wrote it?
Kernel maintainers and Emacs developers are drawing the same line at once: undisclosed LLM help is not a process detail, it is a trust and philosophy problem.
By kexec#mm
Linux mm drops VM_SPECIAL for explicit VMA behaviour predicates
Lorenzo Stoakes's 38-patch series replaces an overloaded flag mask with clear rules about which mappings core mm owns and manages.
By oopsmm maintainer NAKs THP compaction series over undisclosed LLM use
Lorenzo Stoakes rejected patches aimed at costly async compaction retries, citing kernel rules on generated contributions and a flood of deep subsystem work from a brand-new contributor.
By oopsLinux unifies RCU-safe page table freeing across all architectures
A twelve-patch series from Lorenzo Stoakes finishes years of work so every architecture defers userspace page-table teardown until after an RCU grace period.
By oopsVirtualized swap stalls on cgroup memory.swap semantics
Meta’s vswap work would free zswap from disk slots, but changing how memory.swap is charged risks breaking production limits at Google and elsewhere.
By kexecLinux mm series reworks folio refcounts for read scalability
Optimistic increments replace CAS loops under contended IO; Linus has acked the core change while free-path races stay open.
By kexecLinux mm drops VM_SPECIAL for explicit VMA flag semantics
Lorenzo Stoakes's large memory-management series replaces overloaded special flags with behaviour predicates and harder driver checks.
By oopsHMM migrate-on-fault series aims to cut page-table walks
A fourteenth revision unifies fault handling with device-page migration, but automated review flagged livelocks, notifier imbalances, and missing TLB flushes.
By renderKernel finishes RCU-safe page table free for all arches
A patch series converts remaining architectures so userspace page tables are always freed after an RCU grace period, unlocking lockless walks.
By oopsKernel THP split path split into anon and file helpers
Kairui Song’s cleanup series separates mixed folio-split logic so swap-cache restrictions can be lifted later.
By oopsKernel series keeps mTHP on when PMD huge pages are missing
Overloaded THP availability checks no longer wipe out multi-size transparent huge pages on CPUs without PMD leaves.
By oopsLinux mm series keeps anonymous THPs intact across swap
Usama Arif's 29-patch work adds PMD-level swap entries so huge pages need not split on reclaim, with roughly 4x throughput on a swap-heavy benchmark.
By oopsLinux makes per-VMA locks unconditional across all configs
A series from Dave Hansen and Suren Baghdasaryan drops architecture gates so binder, TCP, and generic code can lock individual VMAs without mmap_lock fallbacks.
By kexecLinux MM drops PG_private to free a flag bit for folios
Zi Yan's patchset replaces the page flag with pointer checks so a scarce bit can become PG_folio.
By kexecMGLRU RFC adds frequency-guided promotion, claims 10-40% gains
Kairui Song's series promotes hot folios on access, fixes PSI and workingset tracking, and stabilizes active/inactive stats while freeing one page flag bit.
By kexecLinux MM series lets folios linger on per-CPU batches
Hugh Dickins's 26-patch rework drops most lru_add_drain calls after years of attempts, aiming to ease lruvec contention and watchdog stalls.
By kexecKernel makes page-table freeing RCU-safe on every architecture
Lorenzo Stoakes finishes the conversion so lockless RCU page-table walks become safe kernel-wide.
By kexecKernel fix breaks vmalloc livelock under memory pressure
A circular lock dependency in the vmap purge path could stall the whole system when reclaim and purge work collided.
By kexecLinus 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 oopsKernel 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