Re: ftrace: Have function graph only trace based on global_ops filters

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On Mon, 2014-03-31 at 12:43 -0400, Steven Rostedt wrote:
> On Sun, 30 Mar 2014 20:45:28 +0100
> Ben Hutchings <ben@xxxxxxxxxxxxxxx> wrote:
> 
> 
> > And I've queued up "ftrace: Have function graph only trace based on
> > global_ops filters" (commit 23a8e8441a0a upstream).
> > 
> 
> It wont hurt to add it, especially for any out-of-tree module that
> might use function tracing (3.0 allowed things like system-tap to use
> function tracing). But for in-tree kernel, the stack tracer was
> attached to the same functions as the function and function graph
> tracer until 3.3.
> 
> That meant that there was no in tree user that could cause the problem.

Ah, I failed to check the Fixes line on that one.  But if systemtap can
hit the bug, it does sound like it's worth fixing anyway.

Ben.

-- 
Ben Hutchings
friends: People who know you well, but like you anyway.

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