Messages in this thread | | | Date | Tue, 9 Jun 2020 09:17:40 -0400 | From | Steven Rostedt <> | Subject | [GIT PULL] tracing: Updates for 5.8 |
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Linus,
Tracing updates for 5.8:
No new features this release. Mostly clean ups, restructuring and documentation.
- Have ftrace_bug() show ftrace errors before the WARN, as the WARN will reboot the box before the error messages are printed if panic_on_warn is set.
- Have traceoff_on_warn disable tracing sooner (before prints)
- Write a message to the trace buffer that its being disabled when disable_trace_on_warning() is set.
- Separate out synthetic events from histogram code to let it be used by other parts of the kernel.
- More documentation on histogram design.
- Other small fixes and clean ups.
Please pull the latest trace-v5.8 tree, which can be found at:
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace.git trace-v5.8
Tag SHA1: a9317885fb7c4418fea2588e3fbaeaafd773b106 Head SHA1: 388d8bdb87e01bcea6d0b2bf797b5f6d7b2401fb
Cheng Jian (1): ftrace: show debugging information when panic_on_warn set
Julia Lawall (1): tracing/probe: reverse arguments to list_add
Masami Hiramatsu (1): tools/bootconfig: Add a summary of test cases and return error
Mel Gorman (1): tracing: Remove obsolete PREEMPTIRQ_EVENTS kconfig option
Peter Zijlstra (1): ftrace,bug: Improve traceoff_on_warn
Steven Rostedt (VMware) (2): tracing/doc: Fix typos in histogram-design.rst tracing: Add a trace print when traceoff_on_warning is triggered
Tom Zanussi (7): tracing: Check state.disabled in synth event trace functions tracing: Add histogram-design document tracing: Add hist_debug trace event files for histogram debugging tracing: Fix events.rst section numbering tracing: Move synthetic events to a separate file selftests/ftrace: Distinguish between hist and synthetic event checks tracing/doc: Fix ascii-art in histogram-design.rst
---- Documentation/trace/events.rst | 28 +- Documentation/trace/histogram-design.rst | 2115 +++++++++++++++++++ kernel/trace/Kconfig | 52 +- kernel/trace/Makefile | 1 + kernel/trace/ftrace.c | 8 +- kernel/trace/trace.c | 5 +- kernel/trace/trace.h | 1 + kernel/trace/trace_events.c | 4 + kernel/trace/trace_events_hist.c | 2193 +++----------------- kernel/trace/trace_events_synth.c | 1789 ++++++++++++++++ kernel/trace/trace_probe.c | 2 +- kernel/trace/trace_synth.h | 36 + lib/bug.c | 3 + tools/bootconfig/test-bootconfig.sh | 7 + .../inter-event/trigger-field-variable-support.tc | 5 + .../trigger-inter-event-combined-hist.tc | 5 + .../inter-event/trigger-multi-actions-accept.tc | 5 + .../inter-event/trigger-onmatch-action-hist.tc | 5 + .../trigger-onmatch-onmax-action-hist.tc | 5 + .../inter-event/trigger-onmax-action-hist.tc | 5 + .../inter-event/trigger-snapshot-action-hist.tc | 5 + .../inter-event/trigger-trace-action-hist.tc | 5 + 22 files changed, 4396 insertions(+), 1888 deletions(-) create mode 100644 Documentation/trace/histogram-design.rst create mode 100644 kernel/trace/trace_events_synth.c create mode 100644 kernel/trace/trace_synth.h ---------------------------
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