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 v4 00/15] sched: introduce for_each_process_rculock and for_each_thread_rculock
  2026-09-21 09:24 · 1 reply in 7d · Ye Liu <hidden>

Active reviewers (last 30 days)

• Michal Hocko <mhocko@suse.com>
  3 attestations (3 Acked-by) · last on 2026-09-21
• SJ Park <sj@kernel.org>
  2 attestations (2 Reviewed-by) · last on 2026-09-21
• Lorenzo Stoakes (ARM) <ljs@kernel.org>
  2 attestations (2 Reviewed-by) · last on 2026-09-21
• Oleg Nesterov <oleg@redhat.com>
  2 attestations (2 Reviewed-by) · last on 2026-09-21
• Steven Rostedt <rostedt@goodmis.org>
  1 attestation (1 Acked-by) · last on 2026-09-21

Recent patches

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

• HOTtoday REVIEWED: 33 (33M) [PATCH v4 11/15] tracing/fgraph: convert process/thread iterator to for_each_process_thread_rculock
  2026-09-21 · Ye Liu <hidden>
• COOLING4d REVIEWED: 16 (16M) [PATCH v3 11/15] tracing/fgraph: convert process/thread iterator to for_each_process_thread_rculock
  2026-09-11 · Ye Liu <hidden>
• COOLING11d [PATCH v9 08/13] include: trace: Add new parameter to trace_scmi_fc_call
  2026-09-09 · Philip Radford <hidden>
• COOLING11d REVIEWED: 4 (4M) [PATCH v2 5/8] kernel: convert process/thread iterators to for_each_*_rculock
  2026-09-07 · Ye Liu <hidden>
• COOLING10d [PATCH 5/8] kernel: convert process/thread iterators to for_each_*_rcu
  2026-09-04 · Ye Liu <hidden>
• STALE82d [PATCH v8 08/13] include: trace: Add new parameter to trace_scmi_fc_call
  2026-07-01 · Philip Radford <hidden>
• STALE82d [PATCH v3 5/7] kernel: Use mutable list iterators
  2026-06-22 · Kaitao Cheng <hidden>
• STALE96d [PATCH v7 08/13] include: trace: Add new parameter to trace_scmi_fc_call
  2026-06-17 · Philip Radford <hidden>
• STALE124d [PATCH v6 07/12] include: trace: Add new parameter to trace_scmi_fc_call
  2026-05-18 · Philip Radford <hidden>
• STALE138d [PATCH v5 07/12] include: trace: Add new parameter to trace_scmi_fc_call
  2026-04-28 · Philip Radford <hidden>
• STALE173d [PATCH v4 07/11] include: trace: Add new parameter to trace_scmi_fc_call
  2026-04-01 · Philip Radford <hidden>
• STALE158d [PATCH 15/61] trace: Prefer IS_ERR_OR_NULL over manual NULL check
  2026-03-10 · Philipp Hahn <hidden>
• STALE180d REVIEWED: 6 (6M) [PATCH v4 5/5] mm: add tracepoints for zone lock
  2026-02-27 · Dmitry Ilvokhin <hidden>
• STALE207d [PATCH v3 7/9] include: trace: Add new parameter to trace_scmi_fc_call
  2026-02-26 · Philip Radford <hidden>
• STALE248d [PATCH v3 1/2] cpufreq: Replace trace_cpu_frequency with trace_policy_frequency
  2025-12-01 · Samuel Wu <hidden>
• DORMANTno replies [PATCH v2 1/2] cpufreq: Replace trace_cpu_frequency with trace_policy_frequency
  2025-12-01 · Samuel Wu <hidden>
• STALE307d [PATCH v1] cpufreq: Add policy_frequency trace event
  2025-11-12 · Samuel Wu <hidden>
• STALE311d REVIEWED: 1 (0M) [PATCH v10 1/3] PM: Introduce new PMSG_POWEROFF event
  2025-11-12 · "Mario Limonciello (AMD)" <superm1@kernel.org>
• STALE317d REVIEWED: 1 (0M) [PATCH v9 1/4] PM: Introduce new PMSG_POWEROFF event
  2025-10-26 · "Mario Limonciello (AMD)" <superm1@kernel.org>
• STALE367d REVIEWED: 1 (0M) [PATCH v8 1/4] PM: Introduce new PMSG_POWEROFF event
  2025-09-18 · "Mario Limonciello (AMD)" <superm1@kernel.org>
• STALE375d REVIEWED: 1 (0M) [PATCH v7 01/12] PM: Introduce new PMSG_POWEROFF event
  2025-09-09 · "Mario Limonciello (AMD)" <superm1@kernel.org>
• STALE378d REVIEWED: 1 (0M) [PATCH v6 RESEND 01/11] PM: Introduce new PMSG_POWEROFF event
  2025-09-06 · "Mario Limonciello (AMD)" <superm1@kernel.org>
• STALE377d REVIEWED: 1 (0M) [PATCH v6 01/11] PM: Introduce new PMSG_POWEROFF event
  2025-08-18 · "Mario Limonciello (AMD)" <superm1@kernel.org>
• STALE402d [PATCH 7/8] include: trace: Add new parameter to trace_scmi_fc_call
  2025-08-13 · Cristian Marussi <cristian.marussi@arm.com>
• STALE405d REVIEWED: 1 (0M) [PATCH v5 01/11] PM: Introduce new PMSG_POWEROFF event
  2025-08-11 · "Mario Limonciello (AMD)" <superm1@kernel.org>
• STALE420d REVIEWED: 1 (0M) [PATCH v4 1/5] PM: Use hibernate flows for system power off
  2025-06-16 · Mario Limonciello <superm1@kernel.org>
• STALE465d LANDED [PATCH 4/4] PM: tracing: Hide power_domain_target event under ARCH_OMAP2PLUS
  2025-06-12 · Steven Rostedt <rostedt@goodmis.org>
• STALE465d LANDED [PATCH 1/4] PM: cpufreq: powernv/tracing: Move powernv_throttle trace event
  2025-06-12 · Steven Rostedt <rostedt@goodmis.org>
• STALE465d LANDED [PATCH 2/4] PM: tracing: Hide psci_domain_idle events under ARM_PSCI_CPUIDLE
  2025-06-12 · Steven Rostedt <rostedt@goodmis.org>
• STALE465d LANDED [PATCH 3/4] PM: tracing: Hide device_pm_callback events under PM_SLEEP
  2025-06-12 · Steven Rostedt <rostedt@goodmis.org>

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.

• STALE207d [PATCH v3 7/9] include: trace: Add new parameter to trace_scmi_fc_call
  2026-02-26 · Philip Radford <hidden>
• STALE173d [PATCH v4 07/11] include: trace: Add new parameter to trace_scmi_fc_call
  2026-04-01 · Philip Radford <hidden>
• STALE138d [PATCH v5 07/12] include: trace: Add new parameter to trace_scmi_fc_call
  2026-04-28 · Philip Radford <hidden>
• STALE124d [PATCH v6 07/12] include: trace: Add new parameter to trace_scmi_fc_call
  2026-05-18 · Philip Radford <hidden>
• STALE96d [PATCH v7 08/13] include: trace: Add new parameter to trace_scmi_fc_call
  2026-06-17 · Philip Radford <hidden>
• STALE82d [PATCH v8 08/13] include: trace: Add new parameter to trace_scmi_fc_call
  2026-07-01 · Philip Radford <hidden>