diff options
Diffstat (limited to 'kernel/trace/Kconfig')
| -rw-r--r-- | kernel/trace/Kconfig | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig index d5a19413d4f8..799dbcfe65ad 100644 --- a/kernel/trace/Kconfig +++ b/kernel/trace/Kconfig @@ -538,14 +538,14 @@ config KPROBE_EVENTS config KPROBE_EVENTS_ON_NOTRACE bool "Do NOT protect notrace function from kprobe events" depends on KPROBE_EVENTS - depends on KPROBES_ON_FTRACE + depends on DYNAMIC_FTRACE default n help This is only for the developers who want to debug ftrace itself using kprobe events. If kprobes can use ftrace instead of breakpoint, ftrace related - functions are protected from kprobe-events to prevent an infinit + functions are protected from kprobe-events to prevent an infinite recursion or any unexpected execution path which leads to a kernel crash. @@ -886,6 +886,10 @@ config PREEMPTIRQ_DELAY_TEST irq-disabled critical sections for 500us: modprobe preemptirq_delay_test test_mode=irq delay=500 burst_size=3 + What's more, if you want to attach the test on the cpu which the latency + tracer is running on, specify cpu_affinity=cpu_num at the end of the + command. + If unsure, say N config SYNTH_EVENT_GEN_TEST |