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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-12-15 18:01:16 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-12-15 18:01:16 -0800 |
| commit | fe36bb8736ee9e38fa6173e1271ed8c5cf7bc907 (patch) | |
| tree | 15948d02fe68c2b8c8d6de803006a82f226853de /kernel/trace/Kconfig | |
| parent | 851f657a86421dded42b6175c6ea0f4f5e86af97 (diff) | |
| parent | eb9d58947d40699d93e5e69e1ddc54e41da7e132 (diff) | |
| download | linux-stable-fe36bb8736ee9e38fa6173e1271ed8c5cf7bc907.tar.gz linux-stable-fe36bb8736ee9e38fa6173e1271ed8c5cf7bc907.tar.bz2 linux-stable-fe36bb8736ee9e38fa6173e1271ed8c5cf7bc907.zip | |
Merge tag 'trace-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing updates from Steven Rostedt:
- Add options to the osnoise tracer:
- 'panic_on_stop' option that panics the kernel if osnoise is
greater than some user defined threshold.
- 'preempt' option, to test noise while preemption is disabled
- 'irq' option, to test noise when interrupts are disabled
- Add .percent and .graph suffix to histograms to give different
outputs
- Add nohitcount to disable showing hitcount in histogram output
- Add new __cpumask() to trace event fields to annotate that a unsigned
long array is a cpumask to user space and should be treated as one.
- Add trace_trigger kernel command line parameter to enable trace event
triggers at boot up. Useful to trace stack traces, disable tracing
and take snapshots.
- Fix x86/kmmio mmio tracer to work with the updates to lockdep
- Unify the panic and die notifiers
- Add back ftrace_expect reference that is used to extract more
information in the ftrace_bug() code.
- Have trigger filter parsing errors show up in the tracing error log.
- Updated MAINTAINERS file to add kernel tracing mailing list and
patchwork info
- Use IDA to keep track of event type numbers.
- And minor fixes and clean ups
* tag 'trace-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: (44 commits)
tracing: Fix cpumask() example typo
tracing: Improve panic/die notifiers
ftrace: Prevent RCU stall on PREEMPT_VOLUNTARY kernels
tracing: Do not synchronize freeing of trigger filter on boot up
tracing: Remove pointer (asterisk) and brackets from cpumask_t field
tracing: Have trigger filter parsing errors show up in error_log
x86/mm/kmmio: Remove redundant preempt_disable()
tracing: Fix infinite loop in tracing_read_pipe on overflowed print_trace_line
Documentation/osnoise: Add osnoise/options documentation
tracing/osnoise: Add preempt and/or irq disabled options
tracing/osnoise: Add PANIC_ON_STOP option
Documentation/osnoise: Escape underscore of NO_ prefix
tracing: Fix some checker warnings
tracing/osnoise: Make osnoise_options static
tracing: remove unnecessary trace_trigger ifdef
ring-buffer: Handle resize in early boot up
tracing/hist: Fix issue of losting command info in error_log
tracing: Fix issue of missing one synthetic field
tracing/hist: Fix out-of-bound write on 'action_data.var_ref_idx'
tracing/hist: Fix wrong return value in parse_action_params()
...
Diffstat (limited to 'kernel/trace/Kconfig')
| -rw-r--r-- | kernel/trace/Kconfig | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig index 2c6611c13f99..e95c8fe478cd 100644 --- a/kernel/trace/Kconfig +++ b/kernel/trace/Kconfig @@ -375,6 +375,7 @@ config SCHED_TRACER config HWLAT_TRACER bool "Tracer to detect hardware latencies (like SMIs)" select GENERIC_TRACER + select TRACER_MAX_TRACE help This tracer, when enabled will create one or more kernel threads, depending on what the cpumask file is set to, which each thread @@ -410,6 +411,7 @@ config HWLAT_TRACER config OSNOISE_TRACER bool "OS Noise tracer" select GENERIC_TRACER + select TRACER_MAX_TRACE help In the context of high-performance computing (HPC), the Operating System Noise (osnoise) refers to the interference experienced by an |