On Wed, Apr 19, 2017 at 09:02:33AM -0400, Steven Rostedt wrote: > On Wed, 19 Apr 2017 13:42:40 +0200 > <gregkh@xxxxxxxxxxxxxxxxxxx> wrote: > > > The patch below does not apply to the 4.4-stable tree. > > If someone wants it applied there, or to any other stable or longterm > > tree, then please email the backport, including the original git commit > > id to <stable@xxxxxxxxxxxxxxx>. > > > > [..] > > > > > To fix it, use ftrace_clear_pids() to unregister the probe. As > > instance_rmdir() already updated ftrace codes, it can just free the > > filter safely. > > > > Link: http://lkml.kernel.org/r/20170417024430.21194-2-namhyung@xxxxxxxxxx > > > > Fixes: 0c8916c34203 ("tracing: Add rmdir to remove multibuffer instances") > > Hmm, this is wrong. It should have been: > > Fixes: 345ddcc882d8 ("ftrace: Have set_ftrace_pid use the bitmap like events do") > > Which was added in 4.8. > > I doesn't need to go back further than that. Thanks! Ah, thanks for clearing that up, much appreciated. greg k-h