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 7.2 000/733] 7.2.7-rc1 review
  2026-09-17 15:47 · 16 replies in 7d · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• HOTtoday [PATCH 6.18 0000/1250] 6.18.53-rc1 review
  2026-09-17 17:21 · 8 replies in 7d · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• HOTtoday [PATCH 6.12 0000/1102] 6.12.111-rc1 review
  2026-09-17 18:42 · 7 replies in 7d · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• WARM2d FAILED: patch "[PATCH] tracing: Undo the registration when enabling the histogram" failed to apply to 6.12-stable tree
  2026-09-16 19:07 · 4 replies in 7d · <gregkh@linuxfoundation.org>
• WARM2d REVIEWED: 1 (0M) FAILED: patch "[PATCH] tracing: Take the reference before publishing the named" failed to apply to 6.12-stable tree
  2026-09-16 19:03 · 4 replies in 7d · <gregkh@linuxfoundation.org>
• WARM3d FAILED: patch "[PATCH] tracing: Set the trace clock before registering the histogram" failed to apply to 6.12-stable tree
  2026-09-16 15:49 · 4 replies in 7d · <gregkh@linuxfoundation.org>
• WARM2d FAILED: patch "[PATCH] tracing: Undo the registration when enabling the histogram" failed to apply to 6.1-stable tree
  2026-09-16 20:47 · 3 replies in 7d · <gregkh@linuxfoundation.org>
• WARM2d FAILED: patch "[PATCH] tracing: Undo the registration when enabling the histogram" failed to apply to 6.6-stable tree
  2026-09-16 19:49 · 3 replies in 7d · <gregkh@linuxfoundation.org>
• WARM2d REVIEWED: 1 (0M) FAILED: patch "[PATCH] tracing: Take the reference before publishing the named" failed to apply to 6.6-stable tree
  2026-09-16 19:45 · 3 replies in 7d · <gregkh@linuxfoundation.org>
• WARM2d FAILED: patch "[PATCH] tracing: Undo the registration when enabling the histogram" failed to apply to 6.18-stable tree
  2026-09-16 18:36 · 3 replies in 7d · <gregkh@linuxfoundation.org>

Active reviewers (last 30 days)

• <sashiko-bot@kernel.org>
  85 attestations (85 Reported-by) · last on 2026-09-17
• Breno Leitao <leitao@debian.org>
  28 attestations (14 Reported-by, 14 Tested-by) · last on 2026-09-10
• Tom Zanussi <zanussi@kernel.org>
  25 attestations (7 Acked-by, 18 Reviewed-by) · last on 2026-09-16
• Masami Hiramatsu (Google) <mhiramat@kernel.org>
  18 attestations (14 Acked-by, 2 Reviewed-by, 2 Suggested-by) · last on 2026-09-17
• Steven Rostedt <rostedt@goodmis.org>
  14 attestations (14 Reviewed-by) · last on 2026-09-10
• Vincent Donnefort <hidden>
  10 attestations (10 Reviewed-by) · last on 2026-09-17
• Paulo Alcantara <pc@manguebit.org>
  5 attestations (5 Acked-by) · last on 2026-09-17
• Lorenzo Stoakes (ARM) <ljs@kernel.org>
  4 attestations (4 Acked-by) · last on 2026-09-09
• <hidden>
  3 attestations (3 Reported-by) · last on 2026-09-17
• Jiayuan Chen <jiayuan.chen@linux.dev>
  3 attestations (3 Reviewed-by) · last on 2026-09-17

Recent patches

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

• DORMANTno replies [PATCH v1] ring-buffer: Fix the sub-buffer array base in rb_meta_subbuf_idx()
  2026-09-18 · Donggeun Yoo <hidden>
• WARM1d [PATCH v2] fprobe: Terminate the fgraph_data list when the reservation is not filled
  2026-09-17 · David Carlier <hidden>
• HOTtoday REVIEWED: 3 (3M) [PATCH 6.12 0704/1102] hwmon: Introduce 64-bit energy attribute support
  2026-09-17 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• HOTtoday REVIEWED: 1 (0M) [PATCH 6.12 0644/1102] ring-buffer: Add checking nr_subbufs to persistent ring buffer validation
  2026-09-17 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• HOTtoday [PATCH 6.12 0626/1102] tracing/probes: Fix use-after-free on field name/type of events with multiple probes
  2026-09-17 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• HOTtoday REVIEWED: 4 (4M) [PATCH 6.12 0515/1102] net: icmp: avoid invalid transport header access in icmp_send tracepoint
  2026-09-17 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• HOTtoday [PATCH 6.12 0489/1102] bpf: Guard __get_user acesss with access_ok for uprobe_multi data
  2026-09-17 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• HOTtoday [PATCH 6.12 0193/1102] perf/ftrace: Fix WARNING in __unregister_ftrace_function
  2026-09-17 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• HOTtoday [PATCH 6.12 0190/1102] tracing: Disable KCOV instrumentation for trace_irqsoff.o
  2026-09-17 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• HOTtoday [PATCH 6.18 0786/1250] tracing: Fix to avoid creating trace instances with duplicate names
  2026-09-17 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• HOTtoday [PATCH 6.18 0785/1250] tracing: Add boot-time backup of persistent ring buffer
  2026-09-17 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• HOTtoday [PATCH 6.18 0734/1250] tracing/probes: Fix use-after-free on field name/type of events with multiple probes
  2026-09-17 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• HOTtoday REVIEWED: 3 (3M) [PATCH 6.18 0647/1250] cachefiles: Fix potential UAF/KASAN warning
  2026-09-17 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• HOTtoday REVIEWED: 4 (4M) [PATCH 6.18 0618/1250] net: icmp: avoid invalid transport header access in icmp_send tracepoint
  2026-09-17 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• HOTtoday [PATCH 6.18 0589/1250] bpf: Guard __get_user acesss with access_ok for uprobe_multi data
  2026-09-17 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• HOTtoday [PATCH 6.18 0272/1250] perf/ftrace: Fix WARNING in __unregister_ftrace_function
  2026-09-17 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• HOTtoday [PATCH 6.18 0267/1250] tracing: Disable KCOV instrumentation for trace_irqsoff.o
  2026-09-17 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• HOTtoday [PATCH 7.2 467/733] ftrace: Use rcu_assign_pointer() for tmp_ops filter hash
  2026-09-17 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• HOTtoday [PATCH 7.2 446/733] tracing/remotes: Catch nr_page_va overflow in ring_buffer_desc sizing
  2026-09-17 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• HOTtoday [PATCH 7.2 445/733] tracing/remotes: Account for ring buffer page header in size calculation
  2026-09-17 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• HOTtoday REVIEWED: 1 (0M) [PATCH 7.2 442/733] tracing: Fix ring_buffer_read_page_size() kernel-doc
  2026-09-17 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• HOTtoday [PATCH 7.2 271/733] tracing: Fix comment in tracing_buffers_splice_read()
  2026-09-17 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• HOTtoday [PATCH 7.2 270/733] ring-buffer: Cap static ring buffer nr_pages
  2026-09-17 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• HOTtoday [PATCH 7.2 269/733] tracing: Fix subbuf resize races with trace_pipe_raw readers
  2026-09-17 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• HOTtoday [PATCH 7.2 268/733] ring-buffer: Remove ring_buffer_per_cpu::mapped
  2026-09-17 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• HOTtoday [PATCH 7.2 262/733] tracing: Fix to avoid creating trace instances with duplicate names
  2026-09-17 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• HOTtoday [PATCH 7.2 202/733] tracing/probes: Fix use-after-free on field name/type of events with multiple probes
  2026-09-17 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• HOTtoday REVIEWED: 1 (0M) [PATCH 7.2 234/733] ring-buffer: Add checking nr_subbufs to persistent ring buffer validation
  2026-09-17 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• HOTtoday REVIEWED: 3 (3M) [PATCH 7.2 086/733] netfs: Mark folios with COPY_TO_CACHE whilst issuing subreqs
  2026-09-17 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• HOTtoday REVIEWED: 3 (3M) [PATCH 7.2 085/733] netfs: Fix readahead synchronisation issues by loading all folios upfront
  2026-09-17 · Greg Kroah-Hartman <gregkh@linuxfoundation.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.

• STALE173d REVIEWED: 9 (9M) FAILED: patch "[PATCH] tracing: Fix potential deadlock in cpu hotplug with osnoise" failed to apply to 6.12-stable tree
  2026-03-29 · <gregkh@linuxfoundation.org> · 1 Reviewed-by
• STALE172d REVIEWED: 9 (9M) FAILED: patch "[PATCH] tracing: Fix potential deadlock in cpu hotplug with osnoise" failed to apply to 6.1-stable tree
  2026-03-29 · <gregkh@linuxfoundation.org> · 1 Reviewed-by
• STALE173d REVIEWED: 9 (9M) FAILED: patch "[PATCH] tracing: Fix potential deadlock in cpu hotplug with osnoise" failed to apply to 6.6-stable tree
  2026-03-29 · <gregkh@linuxfoundation.org> · 1 Reviewed-by
• STALE172d REVIEWED: 9 (9M) FAILED: patch "[PATCH] tracing: Fix potential deadlock in cpu hotplug with osnoise" failed to apply to 5.15-stable tree
  2026-03-29 · <gregkh@linuxfoundation.org> · 1 Reviewed-by
• STALE173d REVIEWED: 1 (0M) [PATCH AUTOSEL 6.19-5.10] btrfs: tracepoints: get correct superblock from dentry in event btrfs_sync_file()
  2026-03-30 · Sasha Levin <sashal@kernel.org> · 1 Reviewed-by
• DORMANTno replies REVIEWED: 9 (9M) [PATCH 6.12.y 2/2] tracing: Fix potential deadlock in cpu hotplug with osnoise
  2026-03-30 · Sasha Levin <sashal@kernel.org> · 1 Reviewed-by
• DORMANTno replies REVIEWED: 9 (9M) [PATCH 6.6.y 2/2] tracing: Fix potential deadlock in cpu hotplug with osnoise
  2026-03-30 · Sasha Levin <sashal@kernel.org> · 1 Reviewed-by
• DORMANTno replies REVIEWED: 9 (9M) [PATCH 6.1.y] tracing: Fix potential deadlock in cpu hotplug with osnoise
  2026-03-30 · Sasha Levin <sashal@kernel.org> · 1 Reviewed-by
• DORMANTno replies REVIEWED: 9 (9M) [PATCH 5.15.y] tracing: Fix potential deadlock in cpu hotplug with osnoise
  2026-03-30 · Sasha Levin <sashal@kernel.org> · 1 Reviewed-by
• STALE165d REVIEWED: 3 (3M) [PATCH 6.18 305/309] netfs: Fix the handling of stream->front by removing it
  2026-03-31 · Greg Kroah-Hartman <gregkh@linuxfoundation.org> · 1 Reviewed-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.

• STALE203d [PATCH 6.19 503/781] tracing: Properly process error handling in event_hist_trigger_parse()
  2026-02-25 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE203d [PATCH 6.19 504/781] tracing: Remove duplicate ENABLE_EVENT_STR and DISABLE_EVENT_STR macros
  2026-02-25 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE194d [PATCH 6.18 396/641] tracing: Properly process error handling in event_hist_trigger_parse()
  2026-02-25 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE194d [PATCH 6.18 397/641] tracing: Remove duplicate ENABLE_EVENT_STR and DISABLE_EVENT_STR macros
  2026-02-25 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• DORMANTno replies Re: Linux 6.18.14
  2026-02-26 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE203d Re: Linux 6.19.4
  2026-02-26 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE193d [PATCH 6.19 350/844] tracing: Fix false sharing in hwlat get_sample()
  2026-02-28 · Sasha Levin <sashal@kernel.org>
• STALE193d [PATCH 6.19 783/844] tracing: Fix to set write permission to per-cpu buffer_size_kb
  2026-02-28 · Sasha Levin <sashal@kernel.org>
• STALE193d [PATCH 6.19 784/844] tracing: Reset last_boot_info if ring buffer is reset
  2026-02-28 · Sasha Levin <sashal@kernel.org>
• STALE193d [PATCH 6.19 800/844] function_graph: Restore direct mode when callbacks drop to one
  2026-02-28 · Sasha Levin <sashal@kernel.org>