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)

• HOTtoday [PATCH v18 00/11] tracing: wprobe: x86: Add wprobe for watchpoint
  2026-09-25 11:13 · 8 replies in 7d · "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
• HOTtoday [PATCH v17 00/13] tracing: wprobe: x86: Add wprobe for watchpoint
  2026-09-22 04:27 · 8 replies in 7d · "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
• WARM3d IN LINUX-NEXT [PATCH v5 00/17] Remove PG_private by using page/folio->private checks instead
  2026-09-21 02:29 · 1 reply in 7d · Zi Yan <ziy@nvidia.com>
• COOLING6d [PATCH 0/2] tracing: Override trace_instance parameter
  2026-09-19 14:38 · 2 replies in 7d · "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
• WARM2d [PATCH v12 00/25] Introduce SCMI Telemetry support
  2026-09-20 09:20 · 1 reply in 7d · Cristian Marussi <cristian.marussi@arm.com>

Active reviewers (last 30 days)

• Johan Hovold <johan@kernel.org>
  6 attestations (3 Reviewed-by, 3 Tested-by) · last on 2026-09-14
• Jinchao Wang <hidden>
  5 attestations (5 Reviewed-by) · last on 2026-09-25
• Shivank Garg <hidden>
  4 attestations (4 Tested-by) · last on 2026-09-10
• Fuad Tabba <hidden>
  4 attestations (4 Reviewed-by) · last on 2026-09-10
• Xiaoyao Li <hidden>
  4 attestations (4 Reviewed-by) · last on 2026-09-10
• Binbin Wu <hidden>
  4 attestations (4 Reviewed-by) · last on 2026-09-10
• Sashiko <sashiko-bot@kernel.org>
  4 attestations (4 Reported-by) · last on 2026-09-01
• Aaron Tomlin <atomlin@atomlin.com>
  2 attestations (2 Reviewed-by) · last on 2026-09-14
• Bradley Morgan <hidden>
  2 attestations (2 Reviewed-by) · last on 2026-09-14
• kernel test robot <hidden>
  2 attestations (2 Reported-by) · last on 2026-09-03

Recent patches

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

• DORMANTno replies [PATCH v18 11/11] tracing/wprobe: Support BTF struct offset resolution in set_wprobe trigger
  2026-09-25 · "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
• HOTtoday [PATCH v18 10/11] tracing/wprobe: Support BTF typecast in fetchargs
  2026-09-25 · "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
• HOTtoday [PATCH v18 09/11] selftests: tracing: Add wprobe trigger testcases
  2026-09-25 · "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
• HOTtoday [PATCH v18 08/11] tracing/wprobe: Add set_wprobe and clear_wprobe event triggers
  2026-09-25 · "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
• HOTtoday [PATCH v18 07/11] selftests: tracing: Add syntax testcase for wprobe
  2026-09-25 · "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
• HOTtoday [PATCH v18 06/11] selftests: tracing: Add a basic testcase for wprobe
  2026-09-25 · "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
• HOTtoday REVIEWED: 1 (0M) [PATCH v18 05/11] x86: hw_breakpoint: Add a kconfig to clarify when a breakpoint fires
  2026-09-25 · "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
• HOTtoday [PATCH v18 04/11] tracing/wprobe: Add wprobe (watchpoint probe) trace event support
  2026-09-25 · "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
• HOTtoday [PATCH v17 13/13] tracing/wprobe: Support BTF struct offset resolution in set_wprobe trigger
  2026-09-22 · "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
• HOTtoday [PATCH v17 12/13] tracing/wprobe: Support BTF typecast in fetchargs
  2026-09-22 · "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
• HOTtoday [PATCH v17 11/13] selftests: tracing: Add wprobe trigger testcases
  2026-09-22 · "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
• HOTtoday [PATCH v17 10/13] tracing/wprobe: Add set_wprobe and clear_wprobe event triggers
  2026-09-22 · "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
• HOTtoday [PATCH v17 09/13] selftests: tracing: Add syntax testcase for wprobe
  2026-09-22 · "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
• HOTtoday [PATCH v17 08/13] selftests: tracing: Add a basic testcase for wprobe
  2026-09-22 · "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
• HOTtoday REVIEWED: 1 (0M) [PATCH v17 07/13] x86: hw_breakpoint: Add a kconfig to clarify when a breakpoint fires
  2026-09-22 · "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
• HOTtoday [PATCH v17 06/13] tracing/wprobe: Add wprobe (watchpoint probe) trace event support
  2026-09-22 · "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
• WARM3d IN LINUX-NEXT: 16 (16M) [PATCH v5 17/17] mm/page-flags: remove PG_private
  2026-09-21 · Zi Yan <ziy@nvidia.com>
• WARM2d [PATCH v12 05/25] include: trace: Add Telemetry trace events
  2026-09-20 · Cristian Marussi <cristian.marussi@arm.com>
• DORMANTno replies [PATCH 2/2] selftests/ftrace: Add test case for overriding trace_instance parameter
  2026-09-19 · "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
• COOLING6d [PATCH 1/2] tracing: Override the same name trace_instance= by latter one
  2026-09-19 · "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
• WARM1d REVIEWED: 8 (7M) [PATCH v4 3/3] driver core: add TAINT_FORCED_BIND for when userspace manually messes with devices and drivers
  2026-09-14 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• DORMANTno replies [PATCH] tracing: Clamp the printed end of a histogram bucket at U64_MAX
  2026-09-14 · Donggeun Yoo <hidden>
• WARM3d [PATCH v16 13/13] tracing/wprobe: Support BTF struct offset resolution in set_wprobe trigger
  2026-09-14 · "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
• WARM3d [PATCH v16 12/13] tracing/wprobe: Support BTF typecast in fetchargs
  2026-09-14 · "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
• WARM3d [PATCH v16 11/13] selftests: tracing: Add wprobe trigger testcase
  2026-09-14 · "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
• WARM3d [PATCH v16 10/13] tracing/wprobe: Add set_wprobe and clear_wprobe event triggers
  2026-09-14 · "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
• WARM3d [PATCH v16 09/13] selftests: tracing: Add syntax testcase for wprobe
  2026-09-14 · "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
• WARM3d [PATCH v16 08/13] selftests: tracing: Add a basic testcase for wprobe
  2026-09-14 · "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
• WARM3d REVIEWED: 1 (0M) [PATCH v16 07/13] x86: hw_breakpoint: Add a kconfig to clarify when a breakpoint fires
  2026-09-14 · "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
• WARM3d [PATCH v16 06/13] tracing/wprobe: Add wprobe (watchpoint probe) trace event support
  2026-09-14 · "Masami Hiramatsu (Google)" <mhiramat@kernel.org>

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.

• STALE161d REVIEWED: 9 (9M) [PATCH v2 03/28] filelock: add a tracepoint to start of break_lease()
  2026-04-16 · Jeff Layton <jlayton@kernel.org> · 1 Reviewed-by
• STALE130d REVIEWED: 9 (9M) [PATCH v3 02/28] filelock: add support for ignoring deleg breaks for dir change events
  2026-04-28 · Jeff Layton <jlayton@kernel.org> · 1 Reviewed-by
• STALE130d REVIEWED: 9 (9M) [PATCH v3 03/28] filelock: add a tracepoint to start of break_lease()
  2026-04-28 · Jeff Layton <jlayton@kernel.org> · 1 Reviewed-by
• STALE130d REVIEWED: 9 (9M) [PATCH v3 05/28] fsnotify: new tracepoint in fsnotify()
  2026-04-28 · Jeff Layton <jlayton@kernel.org> · 1 Reviewed-by
• STALE92d REVIEWED: 1 (0M) [PATCH v7 02/42] KVM: Rename KVM_GENERIC_MEMORY_ATTRIBUTES to KVM_VM_MEMORY_ATTRIBUTES
  2026-05-23 · Ackerley Tng <hidden> · 1 Reviewed-by
• COLD60d REVIEWED: 1 (0M) [PATCH v8 02/46] KVM: Rename KVM_GENERIC_MEMORY_ATTRIBUTES to KVM_VM_MEMORY_ATTRIBUTES
  2026-06-19 · Ackerley Tng via B4 Relay <devnull+ackerleytng.google.com@kernel.org> · 1 Reviewed-by
• COLD46d REVIEWED: 4 (0M) [PATCH v9 02/41] KVM: Rename KVM_GENERIC_MEMORY_ATTRIBUTES to KVM_VM_MEMORY_ATTRIBUTES
  2026-07-29 · Ackerley Tng <hidden> · 3 Reviewed-by, 1 Tested-by
• COLD46d REVIEWED: 2 (0M) [PATCH v9 04/41] KVM: Rename memory attribute APIs to prepare for in-place gmem conversion
  2026-07-29 · Ackerley Tng <hidden> · 1 Reviewed-by, 1 Tested-by
• COLD28d REVIEWED: 4 (0M) [PATCH v10 03/41] KVM: Rename KVM_GENERIC_MEMORY_ATTRIBUTES to KVM_VM_MEMORY_ATTRIBUTES
  2026-08-07 · Ackerley Tng <hidden> · 3 Reviewed-by, 1 Tested-by
• COLD28d REVIEWED: 3 (0M) [PATCH v10 05/41] KVM: Rename memory attribute APIs to prepare for in-place gmem conversion
  2026-08-07 · Ackerley Tng <hidden> · 2 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.

• STALE196d [PATCH 06/12] HID: spi_hid: add spi_hid traces
  2026-03-03 · Jingyuan Liang <hidden>
• STALE202d [PATCH net-next v3 02/13] devlink: add helpers to get bus_name/dev_name
  2026-03-04 · Jiri Pirko <jiri@resnulli.us>
• STALE202d [PATCH net-next v3 08/13] devlink: add devlink_dev_driver_name() helper and use it in trace events
  2026-03-04 · Jiri Pirko <jiri@resnulli.us>
• STALE197d [PATCH net 6/7] tcp: expose rmem and backlog accounting in rcvbuf_grow tracepoints
  2026-03-11 · Wesley Atwell <hidden>
• STALE197d [PATCH v2 3/8] dma-mapping: Clarify valid conditions for CPU cache line overlap
  2026-03-11 · Leon Romanovsky <leon@kernel.org>
• STALE197d [PATCH v2 2/8] dma-mapping: handle DMA_ATTR_CPU_CACHE_CLEAN in trace output
  2026-03-11 · Leon Romanovsky <leon@kernel.org>
• STALE162d [PATCH net-next v4 02/13] devlink: add helpers to get bus_name/dev_name
  2026-03-12 · Jiri Pirko <jiri@resnulli.us>
• STALE162d [PATCH net-next v4 08/13] devlink: add devlink_dev_driver_name() helper and use it in trace events
  2026-03-12 · Jiri Pirko <jiri@resnulli.us>
• STALE192d [PATCH RFC v3 02/43] KVM: Rename KVM_GENERIC_MEMORY_ATTRIBUTES to KVM_VM_MEMORY_ATTRIBUTES
  2026-03-13 · Ackerley Tng <hidden>
• STALE193d [PATCH net-next v2 10/14] tcp: expose rmem and backlog in tcp and mptcp rcvbuf_grow tracepoints
  2026-03-14 · <hidden>