[LSF/MM/BPF TOPIC] sframe: An orc like stack unwinder for the kernel to get a user space stacktrace (Steven Rostedt) https://lkml.kernel.org/r/20230206103828.6efcb28f@rorschach.local.home
Steven Rostedt proposes yet another LSF/MM/BPF topic for using sframe section, which is introduced by binutils, for more efficient user space stack tracing.
[PATCH v4 00/14] Introduce Copy-On-Write to Page Table (Chih-En Lin) https://lkml.kernel.org/r/20230207035139.272707-1-shiyn.lin@gmail.com
Fourth version of the patchset making copy-on-write be used for page table, while it is currently only used for the mapped memory.
[LSF/MM/BPF TOPIC] CXL Fabric Manager (FM) architecture (Viacheslav A.Dubeyko) https://lkml.kernel.org/r/7F001EAF-C512-436A-A9DD-E08730C91214@bytedance.com
A topic suggestion for LSF/MM/BPF. It suggests to discuss about Fabric Manager (FM) architecture, which requires configuration tool, daemon, and QEMU emulation of CXL hardware features.
[PATCH V2 0/3] sched/numa: Enhance vma scanning (Ragghavendra K T) https://lkml.kernel.org/r/cover.1675159422.git.raghavendra.kt@amd.com
A patchset for improving access scanning for NUMA balancing. This uses per-thread VMA scanning idea from Mel.
LSFMMBPF proposal [MM]: Lazy RCU memory reclaim (Joel Fernandes) https://lkml.
[RFC PATCH 00/19] mm: Introduce a cgroup to limit the amount of locked and pinned memory (Alistair Popple) https://lkml.kernel.org/r/cover.f52b9eb2792bccb8a9ecd6bc95055705cfe2ae03.1674538665.git-series.apopple@nvidia.com
This RFC patchset introduces a cgroup limit like RLIMIT_MEMLOCKED but that for pinned pages.
[RFC PATCH 0/4] Fix excessive CPU usage during compaction (Mel Gorman) https://lkml.kernel.org/r/20230125134434.18017-1-mgorman@techsingularity.net
A patch for not ignoring fast_find_migrateblock() found pageblocks made compaction shows high CPU and stalls. It therefore once merged in mainline, than reverted, and again merged in mm-unstable.
[RFC] memory pressure detection in VMs using PSI mechanism for dynamically inflating/deflating VM memory (Sudarshan Rajagopalan) https://lkml.kernel.org/r/DS0PR02MB90787835F5B9CB9771A20329C4C09@DS0PR02MB9078.namprd02.prod.outlook.com
Qualcomm’s Linux memory team asks upstream’s opinion about their userspace deamon approach for controlling VM memory size based on memory demands via monitoring PSI.
[PATCH v1 0/3] Introduce per NUMA node memory error statistics (Jiaqi Yan) https://lkml.kernel.org/r/20230116193902.1315236-1-jiaqiyan@google.com
On huge memory systems, memory error is inevitable, so detailed statistics of it helps administrators to operate systems more efficiently.
[PATCH 00/41] Per-VMA locks (Suren Baghdasaryan) https://lkml.kernel.org/r/20230109205336.3665937-1-surenb@google.com
For the mmap_lock scalability issue, yet another approach called per-VMA locks has posted.
[PATCH v2 0/2] docs/mm: start filling out new structure (Mike Rapoport) https://lkml.kernel.org/r/20230110152358.2641910-1-rppt@kernel.org
MM kernel documentation has restructured to be somewhat more like textbook that can better explaining overall concept and how it manage memory, but the content is empty. Mike starts filling the content.
LSFMMBPF proposal [General/MM]: SRCU: a case study in memory ordering (Joel Fernandes) https://lkml.
[PATCH] zram: correctly handle all next_arg() cases (Sergey Senozhatsky) https://lkml.kernel.org/r/20230103030119.1496358-1-senozhatsky@chromium.org
Handle NULL val pointer case from zram’s arguments handling.
[RFC PATCH 00/25] Upstream kvx Linux port (Yann Sionneau) https://lkml.kernel.org/r/20230103164359.24347-1-ysionneau@kalray.eu
This patchset adds support of Kalray’s kvx family kv3-1 CPU architecture.
[PATCH 00/46] Based on latest mm-unstable (85b44c25cd1e). (James Houghton) https://lkml.kernel.org/r/20230105101844.1893104-1-jthoughton@google.com
This patchset introduces HugeTLB high-Granularity Mapping (HGM), which teaches HugeTLB how to map HugeTLB pages at high granularity like how THPs PTE-mapped.
[PATCH -next v3 0/7] mm: convert page_idle/damon to use folios (Kefeng Wang) https://lkml.kernel.org/r/20221228113413.10329-1-wangkefeng.wang@huawei.com
Patchset for converting Idle Pages Tracking and DAMON to use Folios instead of Page where possible has posted.
[PATCH 1/1] mm: fix vma->anon_name memory leak for anonymous shmem VMAs (Suren Baghdasaryan) https://lkml.kernel.org/r/20221228194249.170354-1-surenb@google.com
Shared anonymous pages VMA naming has a memory leak. This patch fixes the leak.
[QUESTION] about the maple tree and current status of mmap_lock scalability (Hyeonggon Yoo) https://lkml.
memcg reclaim demotion wrt. isolation (Michal Hocko) https://lkml.kernel.org/r/Y5idFucjKVbjatqc@dhcp22.suse.cz
Currently pages allocated for demotion targets includes __GFP_KSWAPD_RECALIM, and therefore memcg triggered reclaim could result in reclaims of pages in different hierarchy. Michal suggests simple modification of it.
[GIT PULL] MM updates for 6.2-rc1 (Andrew Morton) (1+ msgs) (Andrew Morton) https://lkml.kernel.org/r/20221213142614.525a9240506119abc3cef6b6@linux-foundation.org
Andrew Morton sent the MM pull request for v6.2-rc1 to Linus Torvalds. It includes 28 DAMON patches for cleanup and DAMOS tried regions sysfs.
[PATCH v3] [mm-unstable] mm: Fix memcg reclaim on memory tiered systems (Mina Almasry) https://lkml.kernel.org/r/20221206023406.3182800-1-almasrymina@google.com
There was a patch for enabling demotion via memory.reclaim memcg file. It made try_to_free_mem_cgroup_pages() behavior changed. As the changed behavior is somewhat the users of the caller didn’t expect, this patch fixes it.
[PATCHv8 00/14] mm, x86/cc: Implement support for unaccepted memory (Kirill A. Shutemov) https://lkml.kernel.org/r/20221207014933.8435-1-kirill.shutemov@linux.intel.com
Some confidential VM approaches like Intel TDX or AMD SEV-SNP requires the guests to accept memory that they will use before use.
[PATCH 1/2] lockdep: allow instrumenting lockdep.c with KMSAN (Alexander Potapenko) https://lkml.kernel.org/r/20221128094541.2645890-1-glider@google.com
Lockdep and KMSAN are known to work together nowadays, though it could make kernel run slower. This patch fixes KMSAN’s false positives on wq_head->lock->dep_map.
[PATCH] mm/huge_memory: add TRANSPARENT_HUGEPAGE_NEVER for THP (ye xingchen) https://lkml.kernel.org/r/202211301651462590168@zte.com.cn
This patch adds a new kernel config called TRANSPARENT_HUGEPAGE_NEVER, which will set the value of /sys/kernel/mm/transparent_hugepage/enabled [never].
[RFC PATCH v2] mm: Add nodes= arg to memory.reclaim (Mina Almasry) https://lkml.