lkml news

LKML News v6.15-rc3

[PATCH] tools/drgn: Add script to display page state for a given PID and VADDR (Ye Liu) https://lore.kernel.org/20250415075024.248232-1-ye.liu@linux.dev Ye Liu introduces a drgn script for showing page information for specific virtual address range. [RFC PATCH v4 0/6] Promotion of Unmapped Page Cache Folios. (Gregory Price) https://lore.kernel.org/20250411221111.493193-1-gourry@gourry.net Gregory continues his unmapped page cache folios promotion work and sent the fourth version.

LKML News v6.15-rc2

[PATCH v2 0/3] Implement numa node notifier (Oscar Salvador) https://lore.kernel.org/20250408084153.255762-1-osalvador@suse.de Oscar found 5/10 memory notifier users are actually interested in only NUMA level change, and proposes numa node notifier. [RFC PATCH v2] Introduce Hierarchical Per-CPU Counters (Mathiew Desnoyers) https://lore.kernel.org/20250408160508.991738-1-mathieu.desnoyers@efficios.com Mathiew proposes a hierarchical per-cpu counter that can provide better scalability on multi CPU machines. [RFC PATCH 00/14] Virtual Swap Space (Nhat Pham) https://lore.kernel.org/20250407234223.1059191-1-nphamcs@gmail.com Nhat proposes virtual swap space, which was also presented at LSFMMBPF a few weeks ago.

LKML News v6.15-rc1

[GIT PULL] MM updates for 6.15-rc1 (Andrew Morton) https://lore.kernel.org/20250330165732.f4c1493615375623f67e38eb@linux-foundation.org Andrew Morton sent MM pull requests for 6.15-rc1 to Linus Torvalds. mm.git grew a branch (Andrew Morton) https://lore.kernel.org/20250401030418.6b9e3b048eacc05d1cdeeffd@linux-foundation.org Andrew announces a new branch on mm.git, called mm-new. He explains what it will be, and asks Stephen to continue adding mm-unstable to next while not adding mm-new. [PATCH 0/2] Implement numa node notifier (Oscar Salvador) https://lore.kernel.org/20250401092716.537512-1-osalvador@suse.de Oscar posted a patchset for extending memory notifier for only NUMA state changes.

LKML News v6.14

[RFC v1 0/3] Live Update Orchestrator (Pasha Tatashin) https://lore.kernel.org/20250320024011.2995837-1-pasha.tatashin@soleen.com Pasha posted an RFC patch series for Linux kernel live update that uses kexec hand over as a way to preserve memory state from old kernel. [GIT PULL] slab updates for 6.15 (Vlastimil Babka) https://lore.kernel.org/2f7985a8-0460-42de-9af0-4f966b937695@suse.cz Vlastimil posted Slab pull request for Linux v6.15 to Linus. [PATCH v5 00/16] kexec: introduce Kexec HandOver (KHO) (Changyuan Lyu) https://lore.kernel.org/20250320015551.2157511-1-changyuanl@google.com Changyuan posted the fifth version of kexec handover patch series.

LKML News v6.14-rc7

[PATCH v2 00/11] cgroup v1 deprecation messages (Michal Kountny) https://lore.kernel.org/20250311123640.530377-1-mkoutny@suse.com Michal categorizes and wordsmith memcg deprecation warning messages. [RFC 0/5] track memory used by balloon drivers (Nico Pache) https://lore.kernel.org/20250312000700.184573-1-npache@redhat.com Nic posted an RFC patch series that adding a counter to track how many pages are reclaimed by the balloon driver. [PATCH 0/5] mm: reliable huge page allocator (Johannes Weiner) https://lore.kernel.org/20250313210647.1314586-1-hannes@cmpxchg.org Johannes posted a patch series for making huge page allocatioin more reliable by making allocator, reclaim, and compaction code try harder to avoid fragmentation.

LKML News v6.14-rc6

[PATCH v15 0/9] Rust support for mm_struct, vm_area_struct, and mmap (Alice Ryhl) https://lore.kernel.org/20250304-vma-v15-0-5c641b31980a@google.com Alice Ryhl posted the fiftennth version of Rust binding for major mm API. [RFC PATCH 0/4] Kernel daemon for detecting and promoting hot pages (Bharata B Rao) https://lore.kernel.org/20250306054532.221138-1-bharata@amd.com Bharata posted an RFC patch set for igniting discussion about one source that provides page access information with an example. The patch uses AMD IBS driver as the source.

LKML News v6.14-rc5

[RFC PATCH 0/3] sched/numa: Introduce per cgroup numa balance control (Chen Yu) https://lore.kernel.org/cover.1740483690.git.yu.c.chen@intel.com Chen posted an RFC for cgroup based numa balancing control, following recent approach from Kaiyang Zhao. [LSF/MM/BPF TOPIC] SLUB allocator, mainly the sheaves caching layer (Vlastimil Babka) https://lore.kernel.org/14422cf1-4a63-4115-87cb-92685e7dd91b@suse.cz Vlastimil proposes an LSFMMBPF topic for his SLUB sheaves patch series. [RFC PATCH 0/2] SKSM: Synchronous Kernel Samepage Merging (Mathieu Desnoyers) https://lore.kernel.org/20250228023043.83726-1-mathieu.desnoyers@efficios.com Matthieu proposes a variant of KSM that works in synchronous manner, unlike KSM.

LKML News v6.14-rc4

[Hypervisor Live Update] Notes from February 10, 2025 (David Rientjes) https://lore.kernel.org/dc1ee0c3-d3e7-4284-6329-346b8cea68b5@google.com David shares hypervisor live update meeting summary. [GIT PULL] hotfixes for 6.14-rc4 (Andrew Morton) https://lore.kernel.org/20250219175311.7a5b47084de5ad0258526be2@linux-foundation.org Andrew posted mm hotfixes for 6.14-rc4 to Linus Torvalds. Rust kernel policy (Miguel Ojeda) https://lore.kernel.org/CANiq72m-R0tOakf=j7BZ78jDHdy=9-fvZbAT8j91Je2Bxy0sFg@mail.gmail.com Miguel posted a mail about his blog post for the policy around Rust for Linux kernel. Long discussion is following. [PATCH 0/2] Add a command line option that enables control of how many threads per NUMA node should be used to allocate huge pages.

LKML News v6.14-rc3

[PATCH v10 00/12] AMD broadcast TLB invalidation (Rik van Riel) https://lore.kernel.org/20250211210823.242681-1-riel@surriel.com Rik posted the tenth versin of the TLB invalication broadcasting patch series for AMD. [PATCH v14 0/8] Rust support for mm_struct, vm_area_struct, and mmap (Alice Ryhl) https://lore.kernel.org/20250213-vma-v14-0-b29c47ab21f5@google.com Alice posted 14th version of the patch series for adding Rust support to mm_struct, vm_rea_struct and mmap. [LSF/MM/BPF TOPIC] Rust in FS, Storage, MM (Andreas Mindborg) https://lore.kernel.org/87ldu9uiyo.fsf@kernel.org Andreas proposes an LSFMMBPF topic for discussing status and experience of Rust adoption for the subsystems.

LKML News v6.14-rc2

[LSF/MM/BPF TOPIC] Integrate Swap Cache, Swap Maps with Swap Allocator (Kairui Song) https://lore.kernel.org/CAMgjq7BvQ0ZXvyLGp2YP96+i+6COCBBJCYmjXHGBnfisCAb8VA@mail.gmail.com Kairui proposes yet another LSFMMBPF topic for redesigning and integrating multiple swap data into the swap allocator. [PATCH v4 00/14] kexec: introduce Kexec HandOver (KHO) (Mike Rapoport) https://lore.kernel.org/20250206132754.2596694-1-rppt@kernel.org Mike posted the fourth version of the kexec handover patch series. Linux 6.14-rc2 (Linus Torvalds) https://lore.kernel.org/CAHk-=wiGR6aB2oE7VsDkpnSbHaUnxVqtMvcEB0JzdvS-YmT_Lg@mail.gmail.com Linus Torvalds released the second candidate of Linux 6.14. It is a small rc2 following the small rc1 pattern.