userspace stack unwinding · Maintained

Maintainers

• M Josh Poimboeuf <jpoimboe@kernel.org>
• M Steven Rostedt <rostedt@goodmis.org>

Paths

• F include/linux/unwind*.h
• F kernel/unwind/

Last 30 days

Most active threads (last 7 days)

• HOTtoday [PATCH v3 00/15] sched: introduce for_each_process_rculock and for_each_thread_rculock
  2026-09-11 08:01 · 1 reply in 7d · Ye Liu <hidden>
• WARM1d [PATCH v2 0/8] sched: introduce for_each_process_rculock and for_each_thread_rculock
  2026-09-07 08:14 · 1 reply in 7d · Ye Liu <hidden>

Active reviewers (last 30 days)

• Indu Bhagat <hidden>
  8 attestations (8 Reviewed-by) · last on 2026-08-21
• Michal Hocko <mhocko@suse.com>
  2 attestations (2 Acked-by) · last on 2026-09-11
• SJ Park <sj@kernel.org>
  1 attestation (1 Reviewed-by) · last on 2026-09-11
• Lorenzo Stoakes (ARM) <ljs@kernel.org>
  1 attestation (1 Reviewed-by) · last on 2026-09-11
• Oleg Nesterov <oleg@redhat.com>
  1 attestation (1 Reviewed-by) · last on 2026-09-11

Recent patches

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

• HOTtoday REVIEWED: 16 (16M) [PATCH v3 12/15] unwind: convert process/thread iterator to for_each_process_thread_rculock
  2026-09-11 · Ye Liu <hidden>
• WARM1d REVIEWED: 4 (4M) [PATCH v2 5/8] kernel: convert process/thread iterators to for_each_*_rculock
  2026-09-07 · Ye Liu <hidden>
• HOTtoday [PATCH 5/8] kernel: convert process/thread iterators to for_each_*_rcu
  2026-09-04 · Ye Liu <hidden>
• HOTtoday [RFC PATCH v2 08/24] unwind_user/eh_frame: Store .eh_frame_hdr section data in per-mm maple tree
  2026-08-21 · Jens Remus <hidden>
• HOTtoday [RFC PATCH v2 06/24] unwind_user: Enable archs that define CFA = SP_callsite + offset
  2026-08-21 · Jens Remus <hidden>
• HOTtoday [RFC PATCH v2 11/24] unwind_user/eh_frame: Wire up unwind_user to eh_frame
  2026-08-21 · Jens Remus <hidden>
• HOTtoday [RFC PATCH v2 14/24] unwind_user/eh_frame: Add .eh_frame[_hdr] validation option
  2026-08-21 · Jens Remus <hidden>
• HOTtoday [RFC PATCH v2 16/24] unwind_user/eh_frame: Ignore DW_CFA_GNU_args_size
  2026-08-21 · Jens Remus <hidden>
• HOTtoday [RFC PATCH v2 20/24] unwind_user/eh_frame/x86: Handle PLT expressions
  2026-08-21 · Jens Remus <hidden>
• HOTtoday [RFC PATCH v2 07/24] unwind_user/eh_frame: Add support for reading .eh_frame_hdr section
  2026-08-21 · Jens Remus <hidden>
• HOTtoday REVIEWED: 1 (0M) [RFC PATCH v2 05/24] unwind_user: Flexible CFA recovery rules
  2026-08-21 · Jens Remus <hidden>
• HOTtoday REVIEWED: 1 (0M) [RFC PATCH v2 02/24] unwind_user: Stop when reaching an outermost frame
  2026-08-21 · Jens Remus <hidden>
• HOTtoday REVIEWED: 1 (0M) [RFC PATCH v2 04/24] unwind_user: Flexible FP/RA recovery rules
  2026-08-21 · Jens Remus <hidden>
• HOTtoday [RFC PATCH v2 24/24] unwind_user/eh_frame: Add prctl() interface for (un)registering .eh_frame_hdr sections
  2026-08-21 · Jens Remus <hidden>
• HOTtoday [RFC PATCH v2 21/24] unwind_user/eh_frame/x86: Handle DRAP expressions
  2026-08-21 · Jens Remus <hidden>
• HOTtoday [RFC PATCH v2 12/24] unwind_user/eh_frame: Remove .eh_frame[_hdr] section on detected corruption
  2026-08-21 · Jens Remus <hidden>
• HOTtoday [RFC PATCH v2 13/24] unwind_user/eh_frame: Show file name in debug output
  2026-08-21 · Jens Remus <hidden>
• HOTtoday [RFC PATCH v2 17/24] unwind_user/eh_frame: Add support for DWARF expressions
  2026-08-21 · Jens Remus <hidden>
• HOTtoday REVIEWED: 1 (0M) [RFC PATCH v2 03/24] unwind_user: Enable archs that pass RA in a register
  2026-08-21 · Jens Remus <hidden>
• HOTtoday [RFC PATCH v2 15/24] unwind_user/eh_frame: Duplicate registered .eh_frame[_hdr] section data on clone/fork
  2026-08-21 · Jens Remus <hidden>
• HOTtoday [RFC PATCH v2 09/24] unwind_user/eh_frame: Add support for reading .eh_frame section
  2026-08-21 · Jens Remus <hidden>
• COLD20d Re: [RFC PATCH v1 00/25] unwind_user: Implement .eh_frame handling
  2026-08-18 · Steven Rostedt <rostedt@kernel.org>
• COLD20d [RFC PATCH v1 14/25] unwind_user/eh_frame: Add .eh_frame[_hdr] validation option
  2026-08-18 · Jens Remus <hidden>
• COLD20d [RFC PATCH v1 11/25] unwind_user/eh_frame: Wire up unwind_user to eh_frame
  2026-08-18 · Jens Remus <hidden>
• COLD20d [RFC PATCH v1 22/25] unwind_user/eh_frame/x86: Handle DRAP expressions
  2026-08-18 · Jens Remus <hidden>
• COLD20d REVIEWED: 1 (0M) [RFC PATCH v1 03/25] unwind_user: Enable archs that pass RA in a register
  2026-08-18 · Jens Remus <hidden>
• COLD20d [RFC PATCH v1 17/25] unwind_user/eh_frame: Ignore DW_CFA_GNU_args_size
  2026-08-18 · Jens Remus <hidden>
• COLD20d [RFC PATCH v1 07/25] unwind_user/eh_frame: Add support for reading .eh_frame_hdr section
  2026-08-18 · Jens Remus <hidden>
• COLD20d [RFC PATCH v1 08/25] unwind_user/eh_frame: Store .eh_frame_hdr section data in per-mm maple tree
  2026-08-18 · Jens Remus <hidden>
• COLD20d [RFC PATCH v1 06/25] unwind_user: Enable archs that define CFA = SP_callsite + offset
  2026-08-18 · Jens Remus <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.

• STALE113d REVIEWED: 1 (0M) [PATCH v15 09/20] unwind_user/sframe: Add support for outermost frame indication
  2026-05-20 · Jens Remus <hidden> · 1 Reviewed-by
• STALE113d REVIEWED: 1 (0M) [PATCH v15 11/20] unwind_user/sframe: Show file name in debug output
  2026-05-20 · Jens Remus <hidden> · 1 Reviewed-by
• STALE113d REVIEWED: 1 (0M) [PATCH v15 14/20] unwind_user: Flexible FP/RA recovery rules
  2026-05-20 · Jens Remus <hidden> · 1 Reviewed-by
• STALE113d REVIEWED: 1 (0M) [PATCH v15 13/20] unwind_user: Enable archs that pass RA in a register
  2026-05-20 · Jens Remus <hidden> · 1 Reviewed-by
• STALE113d REVIEWED: 1 (0M) [PATCH v15 16/20] unwind_user/sframe: Add support for SFrame V3 flexible FDEs
  2026-05-20 · Jens Remus <hidden> · 1 Reviewed-by
• STALE113d REVIEWED: 1 (0M) [PATCH v15 10/20] unwind_user/sframe: Remove .sframe section on detected corruption
  2026-05-20 · Jens Remus <hidden> · 1 Reviewed-by
• STALE113d REVIEWED: 1 (0M) [PATCH v15 02/20] unwind_user/sframe: Add support for reading .sframe headers
  2026-05-20 · Jens Remus <hidden> · 1 Reviewed-by
• STALE113d REVIEWED: 1 (0M) [PATCH v15 08/20] unwind_user: Stop when reaching an outermost frame
  2026-05-20 · Jens Remus <hidden> · 1 Reviewed-by
• STALE106d REVIEWED: 1 (0M) [PATCH v16 07/20] unwind_user/sframe: Wire up unwind_user to sframe
  2026-05-21 · Jens Remus <hidden> · 1 Reviewed-by
• STALE106d REVIEWED: 1 (0M) [PATCH v16 16/20] unwind_user/sframe: Add support for SFrame V3 flexible FDEs
  2026-05-21 · Jens Remus <hidden> · 1 Reviewed-by