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 7.1 000/744] 7.1.6-rc1 review
  2026-07-30 14:48 · 2 replies in 7d · Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Active reviewers (last 30 days)

• Masami Hiramatsu (Google) <mhiramat@kernel.org>
  17 attestations (5 Acked-by, 11 Reviewed-by, 1 Suggested-by) · last on 2026-07-30
• David Howells <dhowells@redhat.com>
  8 attestations (4 Reported-by, 4 Tested-by) · last on 2026-07-02
• Sashiko <sashiko-bot@kernel.org>
  6 attestations (6 Reported-by) · last on 2026-07-30
• Tom Zanussi <zanussi@kernel.org>
  4 attestations (4 Reviewed-by) · last on 2026-07-21
• Steven Rostedt <rostedt@goodmis.org>
  3 attestations (2 Reviewed-by, 1 Suggested-by) · last on 2026-07-30
• Kumar Kartikeya Dwivedi <memxor@gmail.com>
  2 attestations (2 Acked-by) · last on 2026-07-02
• Leon Hwang <hidden>
  2 attestations (2 Acked-by) · last on 2026-07-02
• Jiri Olsa <jolsa@kernel.org>
  2 attestations (2 Acked-by) · last on 2026-07-02
• Christian König <christian.koenig@amd.com>
  1 attestation (1 Reviewed-by) · last on 2026-07-21

Recent patches

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

• HOTtoday [PATCH 7.1 590/744] tracing: Delay module ref count for "enable_event" trigger
  2026-07-30 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• HOTtoday [PATCH 7.1 358/744] tracing: Fix use-after-free freeing trigger private data
  2026-07-30 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• COOLING6d REVIEWED: 9 (9M) [PATCH 5.10 407/699] ring-buffer: Fix event length with forced 8-byte alignment
  2026-07-21 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• COOLING6d [PATCH 5.10 372/699] tracing: probes: fix typo in a log message
  2026-07-21 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• COOLING7d [PATCH 5.15 501/843] tracing: eprobe: read the complete FILTER_PTR_STRING pointer
  2026-07-21 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• COOLING7d REVIEWED: 9 (9M) [PATCH 5.15 529/843] ring-buffer: Fix event length with forced 8-byte alignment
  2026-07-21 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• COOLING7d [PATCH 5.15 485/843] tracing: probes: fix typo in a log message
  2026-07-21 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• COOLING7d [PATCH 6.1 0661/1067] tracing: eprobe: read the complete FILTER_PTR_STRING pointer
  2026-07-21 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• COOLING7d REVIEWED: 9 (9M) [PATCH 6.1 0697/1067] ring-buffer: Fix event length with forced 8-byte alignment
  2026-07-21 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• COOLING7d [PATCH 6.1 0647/1067] tracing: probes: fix typo in a log message
  2026-07-21 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• HOTtoday REVIEWED: 9 (9M) [PATCH 6.6 0866/1266] ring-buffer: Fix event length with forced 8-byte alignment
  2026-07-21 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• HOTtoday [PATCH 6.6 0816/1266] tracing: eprobe: read the complete FILTER_PTR_STRING pointer
  2026-07-21 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• HOTtoday [PATCH 6.6 0799/1266] tracing: probes: fix typo in a log message
  2026-07-21 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• HOTtoday REVIEWED: 10 (9M) [PATCH 6.6 0420/1266] tracing: Bound synthetic-field strings with seq_buf
  2026-07-21 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• WARM2d REVIEWED: 26 (26M) [PATCH 6.12 1039/1276] selftests/ftrace: Drop invalid top-level local in test_ownership
  2026-07-21 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• WARM2d [PATCH 6.12 0736/1276] afs: Change dynroot to create contents on demand
  2026-07-21 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• WARM2d REVIEWED: 9 (9M) [PATCH 6.12 0778/1276] ring-buffer: Fix event length with forced 8-byte alignment
  2026-07-21 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• WARM2d [PATCH 6.12 0733/1276] afs: Make /afs/@cell and /afs/.@cell symlinks
  2026-07-21 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• WARM2d [PATCH 6.12 0715/1276] tracing: eprobe: read the complete FILTER_PTR_STRING pointer
  2026-07-21 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• WARM2d [PATCH 6.12 0690/1276] tracing: probes: fix typo in a log message
  2026-07-21 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• WARM2d REVIEWED: 10 (9M) [PATCH 6.12 0143/1276] tracing: Bound synthetic-field strings with seq_buf
  2026-07-21 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• COOLING7d REVIEWED: 17 (17M) [PATCH 7.1 1110/2077] selftests/ftrace: Fix trace_marker_raw test on 64K page kernels
  2026-07-21 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• COOLING7d [PATCH 7.1 0780/2077] bpf: Guard __get_user acesss with access_ok for uprobe_multi data
  2026-07-21 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• COOLING7d [PATCH 6.18 1066/1611] tracing: Make tracepoint_printk static as not exported
  2026-07-21 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• COOLING7d REVIEWED: 9 (9M) [PATCH 6.18 1059/1611] ring-buffer: Fix event length with forced 8-byte alignment
  2026-07-21 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• COOLING7d [PATCH 6.18 0982/1611] tracing: eprobe: read the complete FILTER_PTR_STRING pointer
  2026-07-21 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• COOLING7d [PATCH 6.18 0980/1611] tracing/probes: Remove WARN_ON_ONCE from parse_btf_arg
  2026-07-21 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• COOLING7d [PATCH 6.18 0979/1611] tracing/eprobes: Allow use of BTF names to dereference pointers
  2026-07-21 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• COOLING7d [PATCH 6.18 0984/1611] tracing/probes: Make the $ prefix mandatory for comm access
  2026-07-21 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• COOLING7d [PATCH 6.18 0983/1611] tracing/fprobe: Fix NULL pointer dereference in fprobe_fgraph_entry()
  2026-07-21 · 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.

• STALE171d REVIEWED: 1 (0M) [PATCH AUTOSEL 6.18-6.12] tracing/dma: Cap dma_map_sg tracepoint arrays to prevent buffer overflow
  2026-02-09 · Sasha Levin <sashal@kernel.org> · 1 Tested-by
• STALE122d 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
• STALE114d REVIEWED: 2 (2M) [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
• STALE100d REVIEWED: 17 (17M) [PATCH AUTOSEL 6.18] tracing/probe: reject non-closed empty immediate strings
  2026-04-20 · Sasha Levin <sashal@kernel.org> · 1 Reviewed-by
• STALE100d REVIEWED: 1 (0M) [PATCH AUTOSEL 6.18] btrfs: tracepoints: get correct superblock from dentry in event btrfs_sync_file()
  2026-04-20 · Sasha Levin <sashal@kernel.org> · 1 Reviewed-by
• COLD19d REVIEWED: 17 (17M) [PATCH 6.6 028/175] ring-buffer: Remove ring_buffer_read_prepare_sync()
  2026-07-02 · Greg Kroah-Hartman <gregkh@linuxfoundation.org> · 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.

• STALE192d [PATCH 6.18 144/181] trace: ftrace_dump_on_oops[] is not exported, make it static
  2026-01-15 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE165d [PATCH AUTOSEL 6.19-5.15] tracing: Fix false sharing in hwlat get_sample()
  2026-02-15 · Sasha Levin <sashal@kernel.org>
• STALE152d [PATCH 6.19 503/781] tracing: Properly process error handling in event_hist_trigger_parse()
  2026-02-25 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE152d [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>
• STALE143d [PATCH 6.18 396/641] tracing: Properly process error handling in event_hist_trigger_parse()
  2026-02-25 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE143d [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>
• STALE151d [PATCH 6.18 308/752] tracing: Fix false sharing in hwlat get_sample()
  2026-02-28 · Sasha Levin <sashal@kernel.org>
• STALE151d [PATCH 6.18 697/752] tracing: Fix to set write permission to per-cpu buffer_size_kb
  2026-02-28 · Sasha Levin <sashal@kernel.org>
• STALE151d [PATCH 6.18 698/752] tracing: Reset last_boot_info if ring buffer is reset
  2026-02-28 · Sasha Levin <sashal@kernel.org>
• STALE151d [PATCH 6.18 712/752] function_graph: Restore direct mode when callbacks drop to one
  2026-02-28 · Sasha Levin <sashal@kernel.org>