Re: [Dle-develop] [PATCH tracing/kprobes] kprobes: Disable booster when CONFIG_PREEMPT=y

[Ingo M. <mi...@el...>]

* Masami Hiramatsu <mhi...@re...> wrote:

> Disable kprobe booster when CONFIG_PREEMPT=y, because it can't ensure that 
> all kernel threads preempted on kprobe's boosted slot run out from the slot 
> even using freeze_processes().

hm, this really sucks as it makes preemptible kernels perform worse. Is there 
no better solution?

> The booster on preemptive kernel will be resumed if synchronize_tasks() or 
> something like that is introduced.

such as this one?

	Ingo