Messages in this thread | | | Date | Sun, 20 Oct 2013 10:48:37 +0200 | From | Ingo Molnar <> | Subject | Re: [PATCH 1/1] hung_task debugging: Add tracepoint to report the hang |
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* Oleg Nesterov <oleg@redhat.com> 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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