Re: [PATCH 2/2] tracing/events: Add kexec tracepoints

[Steven Rostedt]

On Tue, 2009-09-08 at 18:27 -0700, Eric W. Biederman wrote:
> Li Zefan <lizf@xxxxxxxxxxxxxx> writes:
> 
> > When panic, save in ring buffer the time when crash happened,
> > the panic message, etc. And the data can be retrieved from
> > core dump file using flight-recorder, which is going to be a
> > module of the crash utility.
> >
> > Also if we implement flight-recorder in perf tool, those trace
> > outputs can be used by perf tool.
> 
> Please let's keep dynamic code out of crash_kexec if we can.

What dynamic code? It's a tracepoint not something like the function
tracer. It is activated via a bit test and a jmp. Not very dynamic.

-- Steve


> 
> If this is just about timestamsp I don't see the point.


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