tracing · Maintained

Maintainers

• M Steven Rostedt <rostedt@goodmis.org>
• M Masami Hiramatsu <mhiramat@kernel.org>
• R Mathieu Desnoyers <mathieu.desnoyers@efficios.com>

Paths

• F Documentation/core-api/tracepoint.rst
• F Documentation/trace/*
• F fs/tracefs/
• F include/linux/trace*.h
• F include/trace/
• F kernel/trace/
• F kernel/tracepoint.c
• F scripts/tracing/
• F scripts/tracepoint-update.c
• F tools/testing/selftests/ftrace/

Last 30 days

Most active threads (last 7 days)

• WARM3d [PATCH v2 0/4] trace_hyp_printk() for pKVM/nVHE hypervisor
  2026-07-08 07:57 · 1 reply in 7d · Vincent Donnefort <hidden>

Active reviewers (last 30 days)

• Fuad Tabba <hidden>
  2 attestations (1 Reviewed-by, 1 Tested-by) · last on 2026-07-08

Recent patches

Most-recent 30 patches in this subsystem on kvmarm (capped at 30), ordered by date desc.

• WARM3d REVIEWED: 2 (0M) [PATCH v2 3/4] tracing/remotes: Add REMOTE_EVENT_CUSTOM_PRINTK() helper
  2026-07-08 · Vincent Donnefort <hidden>
• COOLING4d [PATCH v1 3/4] tracing/remotes: Add REMOTE_EVENT_CUSTOM_PRINTK() helper
  2026-06-12 · Vincent Donnefort <hidden>
• DORMANTno replies LANDED [PATCH] tracing: Make undefsyms_base.c a first-class citizen
  2026-04-21 · Marc Zyngier <maz@kernel.org>
• STALE110d [PATCH] tracing: Adjust cmd_check_undefined to show unexpected undefined symbols
  2026-03-20 · Nathan Chancellor <nathan@kernel.org>
• STALE116d REVIEWED: 10 (10M) [PATCH v3] tracing: Generate undef symbols allowlist for simple_ring_buffer
  2026-03-16 · Vincent Donnefort <hidden>
• STALE117d REVIEWED: 10 (10M) Re: [PATCH v2] tracing: Generate undef symbols allowlist for simple_ring_buffer
  2026-03-13 · Nathan Chancellor <nathan@kernel.org>
• STALE117d [PATCH v2] tracing: Generate undef symbols allowlist for simple_ring_buffer
  2026-03-13 · Vincent Donnefort <hidden>
• STALE120d Re: [PATCH] tracing: Generate undef symbols allowlist for simple_ring_buffer
  2026-03-12 · Nathan Chancellor <nathan@kernel.org>
• STALE120d [PATCH] tracing: Generate undef symbols allowlist for simple_ring_buffer
  2026-03-12 · Vincent Donnefort <hidden>
• STALE121d [PATCH] tracing: Update undefined symbols allow list for simple_ring_buffer
  2026-03-12 · Vincent Donnefort <hidden>
• STALE121d Re: [PATCH v14 18/30] tracing: Check for undefined symbols in simple_ring_buffer
  2026-03-11 · Nathan Chancellor <nathan@kernel.org>
• STALE121d [PATCH v14 30/30] tracing: selftests: Add hypervisor trace remote tests
  2026-03-09 · Vincent Donnefort <hidden>
• STALE121d REVIEWED: 17 (17M) [PATCH v14 18/30] tracing: Check for undefined symbols in simple_ring_buffer
  2026-03-09 · Vincent Donnefort <hidden>
• STALE121d REVIEWED: 17 (17M) [PATCH v14 17/30] tracing: load/unload page callbacks for simple_ring_buffer
  2026-03-09 · Vincent Donnefort <hidden>
• STALE121d REVIEWED: 17 (17M) [PATCH v14 15/30] tracing: selftests: Add trace remote tests
  2026-03-09 · Vincent Donnefort <hidden>
• STALE121d REVIEWED: 17 (17M) [PATCH v14 14/30] tracing: Add a trace remote module for testing
  2026-03-09 · Vincent Donnefort <hidden>
• STALE121d REVIEWED: 17 (17M) [PATCH v14 13/30] tracing: Introduce simple_ring_buffer
  2026-03-09 · Vincent Donnefort <hidden>
• STALE121d REVIEWED: 17 (17M) [PATCH v14 12/30] ring-buffer: Export buffer_data_page and macros
  2026-03-09 · Vincent Donnefort <hidden>
• STALE121d REVIEWED: 17 (17M) [PATCH v14 11/30] tracing: Add helpers to create trace remote events
  2026-03-09 · Vincent Donnefort <hidden>
• STALE121d REVIEWED: 17 (17M) [PATCH v14 10/30] tracing: Add events/ root files to trace remotes
  2026-03-09 · Vincent Donnefort <hidden>
• STALE121d REVIEWED: 17 (17M) [PATCH v14 09/30] tracing: Add events to trace remotes
  2026-03-09 · Vincent Donnefort <hidden>
• STALE121d REVIEWED: 17 (17M) [PATCH v14 08/30] tracing: Add init callback to trace remotes
  2026-03-09 · Vincent Donnefort <hidden>
• STALE121d REVIEWED: 17 (17M) [PATCH v14 07/30] tracing: Add non-consuming read to trace remotes
  2026-03-09 · Vincent Donnefort <hidden>
• STALE121d REVIEWED: 17 (17M) [PATCH v14 06/30] tracing: Add reset to trace remotes
  2026-03-09 · Vincent Donnefort <hidden>
• STALE121d REVIEWED: 17 (17M) [PATCH v14 05/30] tracing: Introduce trace remotes
  2026-03-09 · Vincent Donnefort <hidden>
• STALE121d REVIEWED: 17 (17M) [PATCH v14 04/30] ring-buffer: Add non-consuming read for ring-buffer remotes
  2026-03-09 · Vincent Donnefort <hidden>
• STALE121d REVIEWED: 17 (17M) [PATCH v14 02/30] ring-buffer: Store bpage pointers into subbuf_ids
  2026-03-09 · Vincent Donnefort <hidden>
• STALE121d REVIEWED: 17 (17M) [PATCH v14 03/30] ring-buffer: Introduce ring-buffer remotes
  2026-03-09 · Vincent Donnefort <hidden>
• STALE121d REVIEWED: 17 (17M) [PATCH v14 01/30] ring-buffer: Add page statistics to the meta-page
  2026-03-09 · Vincent Donnefort <hidden>
• STALE122d [PATCH v13 32/32] fixup! tracing: Add a trace remote module for testing
  2026-03-06 · Vincent Donnefort <hidden>

Needs attention (review trailers in, no pickup)

Patches with review trailers that haven't landed in mainline and haven't been Acked by a maintainer. Oldest first.

• STALE117d REVIEWED: 10 (10M) Re: [PATCH v2] tracing: Generate undef symbols allowlist for simple_ring_buffer
  2026-03-13 · Nathan Chancellor <nathan@kernel.org> · 1 Reviewed-by, 1 Tested-by
• STALE116d REVIEWED: 10 (10M) [PATCH v3] tracing: Generate undef symbols allowlist for simple_ring_buffer
  2026-03-16 · Vincent Donnefort <hidden> · 1 Reviewed-by, 1 Tested-by

Quiet for 30+ days

Patches with no review trailers and no replies. Either the author is heads-down elsewhere or these slipped through. Oldest first.

• STALE161d [PATCH v10 30/30] tracing: selftests: Add hypervisor trace remote tests
  2026-01-26 · Vincent Donnefort <hidden>
• STALE142d [PATCH v11 05/30] tracing: Introduce trace remotes
  2026-01-31 · Vincent Donnefort <hidden>
• STALE142d [PATCH v11 30/30] tracing: selftests: Add hypervisor trace remote tests
  2026-01-31 · Vincent Donnefort <hidden>
• STALE128d [PATCH v12 30/30] tracing: selftests: Add hypervisor trace remote tests
  2026-02-19 · Vincent Donnefort <hidden>
• STALE122d [PATCH v13 30/32] tracing: selftests: Add hypervisor trace remote tests
  2026-03-06 · Vincent Donnefort <hidden>
• STALE122d [PATCH v13 31/32] fixup! tracing: Add a trace remote module for testing
  2026-03-06 · Vincent Donnefort <hidden>
• STALE122d [PATCH v13 32/32] fixup! tracing: Add a trace remote module for testing
  2026-03-06 · Vincent Donnefort <hidden>
• STALE121d [PATCH v14 30/30] tracing: selftests: Add hypervisor trace remote tests
  2026-03-09 · Vincent Donnefort <hidden>
• DORMANTno replies LANDED [PATCH] tracing: Make undefsyms_base.c a first-class citizen
  2026-04-21 · Marc Zyngier <maz@kernel.org>