Active subsystems in linux-trace-kernel

72 subsystems with patch activity in the last 7 days, busiest first. Each links to its own dashboard: recent patches, active threads and reviewers for the paths that subsystem claims in MAINTAINERS.

• tracing
  57 messages in 7d · last 2026-09-06 12:40 · Steven Rostedt et al.
• arm64 port (aarch64 architecture)
  16 messages in 7d · last 2026-09-04 10:45 · Catalin Marinas et al.
• documentation
  12 messages in 7d · last 2026-09-05 11:27 · Jonathan Corbet
• i2c subsystem host drivers
  11 messages in 7d · last 2026-09-03 05:39 · Andi Shyti
• real-time linux analysis (rtla) tools
  9 messages in 7d · last 2026-09-04 08:55 · Steven Rostedt et al.
• kernel virtual machine for arm64 (kvm/arm64)
  8 messages in 7d · last 2026-09-01 14:04 · Marc Zyngier et al.
• dma generic offload engine subsystem
  7 messages in 7d · last 2026-09-04 21:50 · Vinod Koul
• loongson-2 dma driver
  6 messages in 7d · last 2026-09-04 21:50 · Binbin Zhou
• stm32 dma drivers
  6 messages in 7d · last 2026-09-04 21:50 · Amélie Delaunay
• arm/nomadik/ux500 architectures
  6 messages in 7d · last 2026-09-03 05:39 · Linus Walleij
• memory management
  5 messages in 7d · last 2026-09-04 10:45 · Andrew Morton
• memory management - core
  5 messages in 7d · last 2026-09-03 10:31 · Andrew Morton et al.
• ingenic jz47xx socs
  4 messages in 7d · last 2026-09-04 21:50 · Paul Cercueil
• synopsys designware axi dmac driver
  4 messages in 7d · last 2026-09-04 21:50 · Eugeniy Paltsev
• texas instruments dma drivers
  3 messages in 7d · last 2026-09-04 21:50 · Vignesh Raghavendra
• workqueue
  3 messages in 7d · last 2026-09-04 19:35 · Tejun Heo
• drm drivers
  3 messages in 7d · last 2026-09-04 10:45 · David Airlie et al.
• open firmware and flattened device tree bindings
  3 messages in 7d · last 2026-09-04 10:45 · Rob Herring et al.
• kernel selftest framework
  3 messages in 7d · last 2026-09-03 13:25 · Shuah Khan et al.
• function hooks (ftrace)
  2 messages in 7d · last 2026-09-05 21:19 · Steven Rostedt et al.
• extra boot config
  2 messages in 7d · last 2026-09-05 14:16 · Masami Hiramatsu
• microchip at91 dma drivers Supported
  2 messages in 7d · last 2026-09-04 21:50 · Ludovic Desroches
• synopsys designware dmac driver
  2 messages in 7d · last 2026-09-04 21:50 · Viresh Kumar
• mips/loongson1 architecture
  2 messages in 7d · last 2026-09-04 21:50 · Keguang Zhang
• arm/actions semi architecture
  2 messages in 7d · last 2026-09-04 21:50 · Andreas Färber et al.
• switchtec dma driver
  2 messages in 7d · last 2026-09-04 21:50 · Kelvin Cao et al.
• dma buffer sharing framework
  2 messages in 7d · last 2026-09-04 10:45 · Sumit Semwal et al.
• memory management - misc
  2 messages in 7d · last 2026-09-04 10:45 · Andrew Morton et al.
• drm drivers and misc gpu patches
  2 messages in 7d · last 2026-09-04 10:45 · Maarten Lankhorst et al.
• drm drivers for nvidia tegra Supported
  2 messages in 7d · last 2026-09-04 10:45 · Thierry Reding et al.
• kasan
  2 messages in 7d · last 2026-09-03 10:31 · Andrey Ryabinin
• hugetlb subsystem
  2 messages in 7d · last 2026-09-03 10:31 · Muchun Song et al.
• memory management - ksm (kernel samepage merging)
  2 messages in 7d · last 2026-09-03 10:31 · Andrew Morton et al.
• memory mapping - madvise (memory advice)
  2 messages in 7d · last 2026-09-03 10:31 · Andrew Morton et al.
• dma-buf heaps framework
  1 message in 7d · last 2026-09-04 10:45 · Sumit Semwal
• open firmware and flattened device tree
  1 message in 7d · last 2026-09-04 10:45 · Rob Herring et al.
• bitmap api
  1 message in 7d · last 2026-09-04 10:45 · Yury Norov
• tegra video driver
  1 message in 7d · last 2026-09-04 10:45 · Thierry Reding et al.
• cpu hotplug
  1 message in 7d · last 2026-09-04 08:30 · Thomas Gleixner et al.
• freezer Supported
  1 message in 7d · last 2026-09-04 08:30 · "Rafael J. Wysocki"
• hung task detector
  1 message in 7d · last 2026-09-04 08:30 · Andrew Morton et al.
• locking primitives
  1 message in 7d · last 2026-09-04 08:30 · Peter Zijlstra et al.
• read-copy update (rcu) Supported
  1 message in 7d · last 2026-09-04 08:30 · "Paul E. McKenney" et al.
• scheduler
  1 message in 7d · last 2026-09-04 08:30 · Ingo Molnar et al.
• userspace stack unwinding
  1 message in 7d · last 2026-09-04 08:30 · Josh Poimboeuf et al.
• driver core, kobjects, debugfs and sysfs Supported
  1 message in 7d · last 2026-09-04 05:12 · Greg Kroah-Hartman et al.
• module support
  1 message in 7d · last 2026-09-04 05:12 · Luis Chamberlain et al.
• rust Supported
  1 message in 7d · last 2026-09-04 01:20 · Miguel Ojeda
• extensible firmware interface (efi)
  1 message in 7d · last 2026-09-04 01:20 · Ard Biesheuvel
• bpf jit for arm64 Supported
  1 message in 7d · last 2026-09-04 01:19 · Daniel Borkmann et al.
• block layer
  1 message in 7d · last 2026-09-03 20:30 · Jens Axboe
• xen hypervisor interface Supported
  1 message in 7d · last 2026-09-03 10:32 · Juergen Gross et al.
• intel drm i915 driver (meteor lake, dg2 and older excluding poulsbo, moorestown and derivative) Supported
  1 message in 7d · last 2026-09-03 10:31 · Jani Nikula et al.
• memory mapping
  1 message in 7d · last 2026-09-03 10:31 · Andrew Morton et al.
• proc filesystem
  1 message in 7d · last 2026-09-03 10:31
• generic include/asm header files
  1 message in 7d · last 2026-09-03 10:31 · Arnd Bergmann
• mmu gather and tlb invalidation
  1 message in 7d · last 2026-09-03 10:31 · Will Deacon et al.
• page table check
  1 message in 7d · last 2026-09-03 10:31 · Pasha Tatashin et al.
• memory management - rmap (reverse mapping)
  1 message in 7d · last 2026-09-03 10:31 · Andrew Morton et al.
• memory management - swap
  1 message in 7d · last 2026-09-03 10:31 · Andrew Morton et al.
• vmalloc
  1 message in 7d · last 2026-09-03 10:31 · Andrew Morton et al.
• bpf [general] (safe dynamic programs and tools) Supported
  1 message in 7d · last 2026-09-03 10:31 · Alexei Starovoitov et al.
• damon
  1 message in 7d · last 2026-09-03 10:31 · SJ Park
• page cache Supported
  1 message in 7d · last 2026-09-03 10:31 · Matthew Wilcox et al.
• memory management - gup (get user pages)
  1 message in 7d · last 2026-09-03 10:31 · Andrew Morton et al.
• memory management - thp (transparent huge page)
  1 message in 7d · last 2026-09-03 10:31 · Andrew Morton et al.
• hwpoison memory failure handling
  1 message in 7d · last 2026-09-03 10:31 · Miaohe Lin
• memory management - memory policy and migration
  1 message in 7d · last 2026-09-03 10:31 · Andrew Morton et al.
• memory management - userfaultfd
  1 message in 7d · last 2026-09-03 10:31 · Andrew Morton et al.
• memory management - mglru (multi-gen lru)
  1 message in 7d · last 2026-09-03 10:31 · Andrew Morton
• memory management - reclaim
  1 message in 7d · last 2026-09-03 10:31 · Andrew Morton et al.
• i2c subsystem
  1 message in 7d · last 2026-09-03 05:39 · Andi Shyti