Re: [PATCH 1/1] hung_task debugging: Add tracepoint to report thehang

[Ingo Molnar]

* Oleg Nesterov <oleg@xxxxxxxxxx> wrote:

> Currently check_hung_task() prints a warning if it detects the problem, 
> but it is not convenient to watch the system logs if user-space wants to 
> be notified about the hang.
> 
> Add the new trace_sched_process_hang() into check_hung_task(), this way 
> a user-space monitor can easily wait for the hang and potentially 
> resolve a problem.

I'm wondering, is the data of trace_console() in kernel/printk/printk.c 
not sufficient?

If it's not enough then it might be better to add a higher level printk 
tracepoint instead - that can catch hung_task messages and (much) more.

Thanks,

	Ingo
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