Active subsystems in linux-arch

81 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.

• dynamic debug
  60 messages in 7d · last 2026-09-09 00:55 · Jason Baron et al.
• memory management
  32 messages in 7d · last 2026-09-08 20:21 · Andrew Morton
• kernel selftest framework
  26 messages in 7d · last 2026-09-09 00:55 · Shuah Khan et al.
• generic include/asm header files
  23 messages in 7d · last 2026-09-09 00:55 · Arnd Bergmann
• memory management - core
  19 messages in 7d · last 2026-09-08 20:21 · Andrew Morton et al.
• memory mapping
  16 messages in 7d · last 2026-09-08 20:19 · Andrew Morton et al.
• documentation
  14 messages in 7d · last 2026-09-09 00:55 · Jonathan Corbet
• kernel build + files below scripts/ (unless maintained elsewhere) Odd Fixes
  11 messages in 7d · last 2026-09-08 20:59 · Nathan Chancellor et al.
• drm drivers
  8 messages in 7d · last 2026-09-09 00:55 · David Airlie et al.
• drm drivers and misc gpu patches
  8 messages in 7d · last 2026-09-09 00:55 · Maarten Lankhorst et al.
• x86 architecture (32-bit and 64-bit)
  8 messages in 7d · last 2026-09-08 20:57 · Thomas Gleixner et al.
• module support
  7 messages in 7d · last 2026-09-09 00:55 · Luis Chamberlain et al.
• memory mapping - madvise (memory advice)
  5 messages in 7d · last 2026-09-08 20:17 · Andrew Morton et al.
• risc-v architecture Supported
  4 messages in 7d · last 2026-09-08 20:57 · Paul Walmsley et al.
• arm64 port (aarch64 architecture)
  4 messages in 7d · last 2026-09-08 20:57 · Catalin Marinas et al.
• memory management - gup (get user pages)
  4 messages in 7d · last 2026-09-08 20:21 · Andrew Morton et al.
• memory management - memory policy and migration
  4 messages in 7d · last 2026-09-08 20:21 · Andrew Morton et al.
• memory management - thp (transparent huge page)
  4 messages in 7d · last 2026-09-08 20:20 · Andrew Morton et al.
• sparc + ultrasparc (sparc/sparc64)
  4 messages in 7d · last 2026-09-08 20:15 · "David S. Miller" et al.
• live update
  4 messages in 7d · last 2026-09-08 15:57 · Pasha Tatashin et al.
• m68k architecture
  4 messages in 7d · last 2026-09-08 12:36 · Geert Uytterhoeven
• hyper-v/azure core and drivers Supported
  4 messages in 7d · last 2026-09-04 07:55 · "K. Y. Srinivasan" et al.
• extensible firmware interface (efi)
  3 messages in 7d · last 2026-09-08 20:57 · Ard Biesheuvel
• memory management - mglru (multi-gen lru)
  3 messages in 7d · last 2026-09-08 20:18 · Andrew Morton
• memory management - reclaim
  3 messages in 7d · last 2026-09-08 20:18 · Andrew Morton et al.
• memory management - userfaultfd
  3 messages in 7d · last 2026-09-08 20:17 · Andrew Morton et al.
• mmu gather and tlb invalidation
  3 messages in 7d · last 2026-09-08 20:15 · Will Deacon et al.
• scheduler
  3 messages in 7d · last 2026-09-08 20:15 · Ingo Molnar et al.
• memory management - misc
  3 messages in 7d · last 2026-09-08 15:57 · Andrew Morton et al.
• memblock and memory management initialization
  3 messages in 7d · last 2026-09-08 15:57 · Mike Rapoport
• superh
  3 messages in 7d · last 2026-09-08 12:36 · Yoshinori Sato et al.
• iommu subsystem
  3 messages in 7d · last 2026-09-04 07:55 · Joerg Roedel et al.
• rust Supported
  2 messages in 7d · last 2026-09-08 20:59 · Miguel Ojeda
• objtool Supported
  2 messages in 7d · last 2026-09-08 20:59 · Josh Poimboeuf et al.
• kernel virtual machine for arm64 (kvm/arm64)
  2 messages in 7d · last 2026-09-08 20:15 · Marc Zyngier et al.
• linux for powerpc (32-bit and 64-bit) Supported
  2 messages in 7d · last 2026-09-08 20:15 · Madhavan Srinivasan
• s390 architecture Supported
  2 messages in 7d · last 2026-09-08 20:15 · Heiko Carstens et al.
• memory management - rmap (reverse mapping)
  2 messages in 7d · last 2026-09-08 20:15 · Andrew Morton et al.
• hugetlb subsystem
  2 messages in 7d · last 2026-09-08 20:15 · Muchun Song et al.
• kexec handover (kho)
  2 messages in 7d · last 2026-09-08 15:57 · Mike Rapoport et al.
• c-sky architecture Supported
  2 messages in 7d · last 2026-09-08 12:36 · Guo Ren
• qualcomm hexagon architecture Supported
  2 messages in 7d · last 2026-09-08 12:36 · Brian Cain
• nios2 architecture Supported
  2 messages in 7d · last 2026-09-08 12:36 · Dinh Nguyen et al.
• openrisc architecture
  2 messages in 7d · last 2026-09-08 12:36 · Jonas Bonn et al.
• arm port Odd Fixes
  2 messages in 7d · last 2026-09-08 12:36 · Russell King
• synopsys arc architecture Supported
  2 messages in 7d · last 2026-09-08 12:36 · Vineet Gupta
• microblaze architecture Supported
  2 messages in 7d · last 2026-09-08 12:36 · Michal Simek
• tensilica xtensa port (xtensa)
  2 messages in 7d · last 2026-09-08 12:36 · Chris Zankel et al.
• hibernation (aka software suspend, aka swsusp) Supported
  1 message in 7d · last 2026-09-09 00:55 · "Rafael J. Wysocki"
• suspend to ram Supported
  1 message in 7d · last 2026-09-09 00:55 · "Rafael J. Wysocki"
• fuse filesystem [core] Supported
  1 message in 7d · last 2026-09-08 20:20 · Miklos Szeredi
• memory management - ksm (kernel samepage merging)
  1 message in 7d · last 2026-09-08 20:18 · Andrew Morton et al.
• kernel virtual machine for risc-v (kvm/riscv)
  1 message in 7d · last 2026-09-08 20:15 · Anup Patel
• kernel virtual machine for s390 (kvm/s390) Supported
  1 message in 7d · last 2026-09-08 20:15 · Christian Borntraeger et al.
• proc filesystem
  1 message in 7d · last 2026-09-08 20:15
• memory management - swap
  1 message in 7d · last 2026-09-08 20:15 · Andrew Morton et al.
• page cache Supported
  1 message in 7d · last 2026-09-08 20:14 · Matthew Wilcox et al.
• uprobes
  1 message in 7d · last 2026-09-08 20:12 · Masami Hiramatsu et al.
• hsi subsystem
  1 message in 7d · last 2026-09-08 20:11 · Sebastian Reichel
• framebuffer core Odd Fixes
  1 message in 7d · last 2026-09-08 20:11 · Simona Vetter
• arc framebuffer driver
  1 message in 7d · last 2026-09-08 20:11 · Jaya Kumar
• framebuffer layer
  1 message in 7d · last 2026-09-08 20:11 · Helge Deller
• scsi sg driver
  1 message in 7d · last 2026-09-08 20:10 · Doug Gilbert
• scsi subsystem
  1 message in 7d · last 2026-09-08 20:10 · "James E.J. Bottomley" et al.
• bpf [general] (safe dynamic programs and tools) Supported
  1 message in 7d · last 2026-09-08 20:08 · Alexei Starovoitov et al.
• sound
  1 message in 7d · last 2026-09-08 20:08 · Jaroslav Kysela et al.
• selinux security module Supported
  1 message in 7d · last 2026-09-08 20:07 · Paul Moore et al.
• infiniband subsystem Supported
  1 message in 7d · last 2026-09-08 20:07 · Jason Gunthorpe et al.
• usb subsystem Supported
  1 message in 7d · last 2026-09-08 20:06 · Greg Kroah-Hartman
• open firmware and flattened device tree
  1 message in 7d · last 2026-09-08 15:57 · Rob Herring et al.
• kexec
  1 message in 7d · last 2026-09-08 15:57 · Andrew Morton et al.
• memory mapping - locking
  1 message in 7d · last 2026-09-08 12:36 · Andrew Morton et al.
• alpha port Odd Fixes
  1 message in 7d · last 2026-09-08 12:36 · Richard Henderson et al.
• loongarch
  1 message in 7d · last 2026-09-08 12:36 · Huacai Chen
• mips
  1 message in 7d · last 2026-09-08 12:36 · Thomas Bogendoerfer
• parisc architecture
  1 message in 7d · last 2026-09-08 12:36 · "James E.J. Bottomley" et al.
• user-mode linux (uml)
  1 message in 7d · last 2026-09-08 12:36 · Richard Weinberger et al.
• amd iommu (amd-vi)
  1 message in 7d · last 2026-09-04 07:55 · Joerg Roedel
• intel iommu (vt-d) Supported
  1 message in 7d · last 2026-09-04 07:55 · David Woodhouse et al.
• pci subsystem Supported
  1 message in 7d · last 2026-09-04 07:55 · Bjorn Helgaas
• pci native host bridge and endpoint drivers Supported
  1 message in 7d · last 2026-09-04 07:55 · Lorenzo Pieralisi et al.