On Thu, Apr 17, 2014 at 07:42:57PM -0400, Steven Rostedt wrote: > From: "Steven Rostedt (Red Hat)" <[email protected]> > > With the restructing of the function tracer working with instances, the > "top level" buffer is a bit special, as the function tracing is mapped > to the same set of filters. This is done by using a "global_ops" descriptor > and having the "set_ftrace_filter" and "set_ftrace_notrace" map to it. > > When an instance is created, it creates the same files but its for the > local instance and not the global_ops. > > The issues is that the local instance creation shares some code with > the global instance one and we end up trying to create th top level > "set_ftrace_*" files twice, and on boot up, we get an error like this: > > Could not create debugfs 'set_ftrace_filter' entry > Could not create debugfs 'set_ftrace_notrace' entry > > The reason they failed to be created was because they were created > twice, and the second time gives this error as you can not create the > same file twice. > > Reported-by: Borislav Petkov <[email protected]> > Signed-off-by: Steven Rostedt <[email protected]>
Tested-by: Borislav Petkov <[email protected]> -- Regards/Gruss, Boris. Sent from a fat crate under my desk. Formatting is fine. -- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
