* [GIT PULL] probes: Updates for v7.4
@ 2026-10-22 0:14 Masami Hiramatsu
2026-10-23 22:26 ` pr-tracker-bot
0 siblings, 1 reply; 2+ messages in thread
From: Masami Hiramatsu @ 2026-10-22 0:14 UTC (permalink / raw)
To: Linus Torvalds
Cc: Alexander Gordeev, Bradley Morgan, Kees Cook, Masami Hiramatsu,
Steven Rostedt, Masami Hiramatsu, linux-kernel
Hi Linus,
Probes updates for v7.4:
- kprobes: Asynchronous optprobe optimizer and cleanups
. Make optprobe optimizer multi-generational and asynchronous: Rework
the optimizer as a state machine to avoid calling time-consuming
synchronize_rcu_tasks() while holding kprobe_mutex, text_mutex, and
cpus_read_lock(). Uses call_rcu_tasks() and a fixed ring of generation
slots instead, so locks are only held during the brief instruction-
patching window.
. Use DEFINE_DEBUGFS_ATTRIBUTE for the kprobes enabled knob: Replace a
hand-rolled debugfs read/write pair (dating from 2007) with the proper
DEFINE_DEBUGFS_ATTRIBUTE macro, removing dead code and the stale XXX
comment.
- tracing/probes: Code quality and documentation cleanups
. Add const qualifier to new_argv allocation type in trace_probe.c,
preparing for the type-aware kmalloc_obj allocator conversion.
. Clarify btf_find_struct_member() container parameter: Rename the
misleading @member_type parameter to @container_type and add proper
kernel-doc documentation for all parameters and return values.
- selftests/ftrace: Boot tracing test framework and testcases
. Add a generic boot tracing test framework under
tools/testing/selftests/ftrace/boottime/. The test runner builds a
minimal initramfs with busybox, boots QEMU, and runs tracefs checker
scripts, supporting bootconfig, kernel command-line options, and
multi-boot crash/reboot scenarios.
. Add boot-time tracing testcases: Verify dynamic kprobe, synthetic
events, eprobe, fprobe, tprobe, and trace instance creation via
bootconfig.
. Add kernel cmdline tracing testcases: Verify ftrace, trace_event,
trace_buf_size, trace_options, trace_clock, and trace_instance kernel
parameters.
. Add persistent ring buffer testcases: Verify memory reservation via
reserve_mem= and trace data retention across guest crash/reboot, as
well as backup instance creation and boot log preservation.
. Change non-unique test symbol from name_show to init_once in
kprobe_non_uniq_symbol.tc for more reliable cross-architecture
testing.
Please pull the latest probes-v7.4 tree, which can be found at:
git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace.git
probes-v7.4
Tag SHA1: 81b0103429bc0286c4ea57ba2d496b452f653a44
Head SHA1: d4d028a7ae6401ce70825a3eb663f0a2dfc49db6
Alexander Gordeev (1):
ftrace/selftests: Change non-unique test symbol to init_once
Bradley Morgan (1):
kprobes: use DEFINE_DEBUGFS_ATTRIBUTE for the enabled knob
Kees Cook (1):
tracing/probes: Add const to new_argv allocation type
Masami Hiramatsu (Google) (6):
selftests/ftrace: Add generic boot tracing test framework
selftests/ftrace: Add boot-time tracing testcases
selftests/ftrace: Add kernel cmdline tracing testcases
selftests/ftrace: Add persistent ring buffer testcases
kprobes: Make optprobe optimizer multi-generational and asynchronous
tracing/probes: Clarify btf_find_struct_member() container parameter and add kernel-doc
----
kernel/kprobes.c | 514 +++++++++++++++------
kernel/trace/trace_btf.c | 34 +-
kernel/trace/trace_btf.h | 2 +-
kernel/trace/trace_probe.c | 8 +-
tools/testing/selftests/ftrace/Makefile | 4 +-
tools/testing/selftests/ftrace/boottime-ktap | 6 +
tools/testing/selftests/ftrace/boottime/Makefile | 10 +
tools/testing/selftests/ftrace/boottime/README | 74 +++
.../ftrace/boottime/bootconfigs/01-kprobe.bconf | 4 +
.../ftrace/boottime/bootconfigs/02-synth.bconf | 4 +
.../ftrace/boottime/bootconfigs/03-eprobe.bconf | 4 +
.../ftrace/boottime/bootconfigs/04-fprobe.bconf | 4 +
.../ftrace/boottime/bootconfigs/05-tprobe.bconf | 4 +
.../ftrace/boottime/bootconfigs/06-instance.bconf | 5 +
.../boottime/cmdlines/cmdline-01-ftrace.cmdline | 1 +
.../cmdlines/cmdline-02-trace-event.cmdline | 1 +
.../cmdlines/cmdline-03-trace-buf-size.cmdline | 1 +
.../cmdlines/cmdline-04-trace-options.cmdline | 1 +
.../cmdlines/cmdline-05-trace-clock.cmdline | 1 +
.../cmdlines/cmdline-06-trace-instance.cmdline | 1 +
.../cmdlines/persistent-01-reserve-mem.cmdline | 1 +
.../cmdlines/persistent-02-backup-instance.cmdline | 1 +
.../selftests/ftrace/boottime/run_boottime_test.sh | 403 ++++++++++++++++
.../selftests/ftrace/boottime/tests/01-kprobe.sh | 25 +
.../selftests/ftrace/boottime/tests/02-synth.sh | 25 +
.../selftests/ftrace/boottime/tests/03-eprobe.sh | 25 +
.../selftests/ftrace/boottime/tests/04-fprobe.sh | 25 +
.../selftests/ftrace/boottime/tests/05-tprobe.sh | 25 +
.../selftests/ftrace/boottime/tests/06-instance.sh | 30 ++
.../ftrace/boottime/tests/cmdline-01-ftrace.sh | 19 +
.../boottime/tests/cmdline-02-trace-event.sh | 26 ++
.../boottime/tests/cmdline-03-trace-buf-size.sh | 29 ++
.../boottime/tests/cmdline-04-trace-options.sh | 23 +
.../boottime/tests/cmdline-05-trace-clock.sh | 19 +
.../boottime/tests/cmdline-06-trace-instance.sh | 24 +
.../boottime/tests/persistent-01-reserve-mem.sh | 28 ++
.../tests/persistent-02-backup-instance.sh | 40 ++
tools/testing/selftests/ftrace/config | 6 +
.../ftrace/test.d/kprobe/kprobe_non_uniq_symbol.tc | 2 +-
39 files changed, 1289 insertions(+), 170 deletions(-)
create mode 100755 tools/testing/selftests/ftrace/boottime-ktap
create mode 100644 tools/testing/selftests/ftrace/boottime/Makefile
create mode 100644 tools/testing/selftests/ftrace/boottime/README
create mode 100644 tools/testing/selftests/ftrace/boottime/bootconfigs/01-kprobe.bconf
create mode 100644 tools/testing/selftests/ftrace/boottime/bootconfigs/02-synth.bconf
create mode 100644 tools/testing/selftests/ftrace/boottime/bootconfigs/03-eprobe.bconf
create mode 100644 tools/testing/selftests/ftrace/boottime/bootconfigs/04-fprobe.bconf
create mode 100644 tools/testing/selftests/ftrace/boottime/bootconfigs/05-tprobe.bconf
create mode 100644 tools/testing/selftests/ftrace/boottime/bootconfigs/06-instance.bconf
create mode 100644 tools/testing/selftests/ftrace/boottime/cmdlines/cmdline-01-ftrace.cmdline
create mode 100644 tools/testing/selftests/ftrace/boottime/cmdlines/cmdline-02-trace-event.cmdline
create mode 100644 tools/testing/selftests/ftrace/boottime/cmdlines/cmdline-03-trace-buf-size.cmdline
create mode 100644 tools/testing/selftests/ftrace/boottime/cmdlines/cmdline-04-trace-options.cmdline
create mode 100644 tools/testing/selftests/ftrace/boottime/cmdlines/cmdline-05-trace-clock.cmdline
create mode 100644 tools/testing/selftests/ftrace/boottime/cmdlines/cmdline-06-trace-instance.cmdline
create mode 100644 tools/testing/selftests/ftrace/boottime/cmdlines/persistent-01-reserve-mem.cmdline
create mode 100644 tools/testing/selftests/ftrace/boottime/cmdlines/persistent-02-backup-instance.cmdline
create mode 100755 tools/testing/selftests/ftrace/boottime/run_boottime_test.sh
create mode 100644 tools/testing/selftests/ftrace/boottime/tests/01-kprobe.sh
create mode 100644 tools/testing/selftests/ftrace/boottime/tests/02-synth.sh
create mode 100644 tools/testing/selftests/ftrace/boottime/tests/03-eprobe.sh
create mode 100644 tools/testing/selftests/ftrace/boottime/tests/04-fprobe.sh
create mode 100644 tools/testing/selftests/ftrace/boottime/tests/05-tprobe.sh
create mode 100644 tools/testing/selftests/ftrace/boottime/tests/06-instance.sh
create mode 100644 tools/testing/selftests/ftrace/boottime/tests/cmdline-01-ftrace.sh
create mode 100644 tools/testing/selftests/ftrace/boottime/tests/cmdline-02-trace-event.sh
create mode 100644 tools/testing/selftests/ftrace/boottime/tests/cmdline-03-trace-buf-size.sh
create mode 100644 tools/testing/selftests/ftrace/boottime/tests/cmdline-04-trace-options.sh
create mode 100644 tools/testing/selftests/ftrace/boottime/tests/cmdline-05-trace-clock.sh
create mode 100644 tools/testing/selftests/ftrace/boottime/tests/cmdline-06-trace-instance.sh
create mode 100644 tools/testing/selftests/ftrace/boottime/tests/persistent-01-reserve-mem.sh
create mode 100644 tools/testing/selftests/ftrace/boottime/tests/persistent-02-backup-instance.sh
---------------------------
--
Masami Hiramatsu (Google) <mhiramat@kernel.org>
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [GIT PULL] probes: Updates for v7.4
2026-10-22 0:14 [GIT PULL] probes: Updates for v7.4 Masami Hiramatsu
@ 2026-10-23 22:26 ` pr-tracker-bot
0 siblings, 0 replies; 2+ messages in thread
From: pr-tracker-bot @ 2026-10-23 22:26 UTC (permalink / raw)
To: Masami Hiramatsu (Google)
Cc: Linus Torvalds, Alexander Gordeev, Bradley Morgan, Kees Cook,
Masami Hiramatsu (Google),
Steven Rostedt, Masami Hiramatsu, linux-kernel
The pull request you sent on Thu, 22 Oct 2026 09:14:39 +0900:
> git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace.git probes-v7.4
has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/3f942403bbad36a120432be69445154891b65398
Thank you!
--
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/prtracker.html
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