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 bpf-next v4 00/12] bpf: make the vmlinux BTF an on-demand loadable module (CONFIG_DEBUG_INFO_BTF=m) to save ~5.4 MB memory
  2026-10-01 22:54 · 3 replies in 7d · Jay Wang <hidden>

Active reviewers (last 30 days)

• Johan Hovold <johan@kernel.org>
  4 attestations (2 Reviewed-by, 2 Tested-by) · last on 2026-09-14
• 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

Recent patches

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

• HOTtoday [PATCH bpf-next v4 09/12] bpf, trace, net: prepare CONFIG_DEBUG_INFO_BTF checks for a tristate
  2026-10-01 · Jay Wang <hidden>
• HOTtoday [PATCH bpf-next v4 05/12] bpf, tracing: load the vmlinux BTF where tracefs and bpffs requests start
  2026-10-01 · Jay Wang <hidden>
• HOTtoday [PATCH bpf-next v4 03/12] bpf: fetch the vmlinux BTF where kernel types enter a program
  2026-10-01 · Jay Wang <hidden>
• WARM1d [PATCH bpf-next v3 8/9] bpf, trace, net: prepare CONFIG_DEBUG_INFO_BTF checks for a tristate
  2026-09-25 · Jay Wang <hidden>
• WARM1d [PATCH bpf-next v3 3/9] bpf: fetch the vmlinux BTF where kernel types enter a program
  2026-09-25 · Jay Wang <hidden>
• COOLING7d [PATCH bpf-next v2 8/9] bpf, trace, net: prepare CONFIG_DEBUG_INFO_BTF checks for a tristate
  2026-09-25 · Jay Wang <hidden>
• COOLING7d [PATCH bpf-next v2 3/9] bpf: fetch the vmlinux BTF where kernel types enter a program
  2026-09-25 · Jay Wang <hidden>
• COOLING7d [PATCH bpf-next 6/6] kbuild, bpf: allow building the vmlinux BTF as a module
  2026-09-23 · Jay Wang <hidden>
• COOLING7d [PATCH bpf-next 3/6] bpf: fetch the vmlinux BTF where kernel types enter a program
  2026-09-23 · Jay Wang <hidden>
• COOLING9d 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>
• COLD27d REVIEWED: 8 (7M) [PATCH v3 2/2] driver core: add TAINT_FORCED_BIND for when userspace manually messes with devices and drivers
  2026-09-04 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• COLD32d REVIEWED: 6 (6M) [PATCH v2 2/2] driver core: add TAINT_FORCED_BIND for when userspace manually messes with devices and drivers
  2026-08-31 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• HOTtoday [PATCH 2/2] driver core: add TAINT_FORCED_BIND for when userspace manually messes with devices and drivers
  2026-08-26 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• COLD25d [PATCH v3] tracing: Export live module tracepoint strings in printk_formats
  2026-08-11 · Cao Ruichuang <hidden>
• STALE93d [PATCH v3 5/7] kernel: Use mutable list iterators
  2026-06-22 · Kaitao Cheng <hidden>
• COLD25d [PATCH] tracing: preserve module tracepoint strings
  2026-04-06 · Cao Ruichuang <hidden>
• STALE198d [PATCH v2 2/2] tree-wide: rename do_exit() to task_exit()
  2026-03-10 · Christian Brauner <brauner@kernel.org>
• STALE169d [PATCH 15/61] trace: Prefer IS_ERR_OR_NULL over manual NULL check
  2026-03-10 · Philipp Hahn <hidden>
• STALE164d [PATCH] kernel/trace/ftrace: introduce ftrace module notifier
  2026-02-25 · <hidden>
• STALE254d [PATCH v5 5/6] tracing: Remove size parameter in __trace_puts()
  2026-01-16 · Yury Norov <hidden>
• STALE270d [PATCH v4 5/7] tracing: Remove size parameter in __trace_puts()
  2025-12-25 · "Yury Norov (NVIDIA)" <yury.norov@gmail.com>
• STALE270d [PATCH v4 7/7] kernel.h: drop trace_printk.h
  2025-12-25 · "Yury Norov (NVIDIA)" <yury.norov@gmail.com>
• STALE288d Re: [PATCH v3 4/4] tracing: move tracing declarations from kernel.h to a dedicated header
  2025-12-18 · Steven Rostedt <rostedt@goodmis.org>
• STALE288d REVIEWED: 18 (18M) [PATCH v3 6/7] kallsyms/ftrace: Set module buildid in ftrace_mod_address_lookup()
  2025-11-28 · Petr Mladek <pmladek@suse.com>
• STALE324d REVIEWED: 18 (18M) [PATCH v2 6/7] kallsyms/ftrace: Set module buildid in ftrace_mod_address_lookup()
  2025-11-12 · Petr Mladek <pmladek@suse.com>
• STALE326d [PATCH 4/6] kallsyms/ftrace: Set module buildid in ftrace_mod_address_lookup()
  2025-11-05 · Petr Mladek <pmladek@suse.com>
• STALE390d [PATCH] Fixed the build warning in init_trace_printk_function_export():
  2025-09-07 · Fidal Palamparambil <hidden>
• STALE390d [PATCH] tracing : Fix multiple issues in trace_printk module handling
  2025-09-07 · Fidal Palamparambil <hidden>
• STALE388d [PATCH] tracing: Fix multiple issues in trace_printk module handling
  2025-09-06 · Fidal Palamparambil <hidden>
• STALE391d [PATCH] kprobe_event_gen_test : Fix error handling and resource cleanup
  2025-09-06 · Fidal Palamparambil <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.

• COLD32d REVIEWED: 6 (6M) [PATCH v2 2/2] driver core: add TAINT_FORCED_BIND for when userspace manually messes with devices and drivers
  2026-08-31 · Greg Kroah-Hartman <gregkh@linuxfoundation.org> · 1 Reviewed-by, 1 Tested-by
• COLD27d REVIEWED: 8 (7M) [PATCH v3 2/2] driver core: add TAINT_FORCED_BIND for when userspace manually messes with devices and drivers
  2026-09-04 · Greg Kroah-Hartman <gregkh@linuxfoundation.org> · 3 Reviewed-by, 1 Tested-by
• COOLING9d 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> · 3 Reviewed-by, 1 Tested-by