On Thu, 2017-03-02 at 13:05 -0500, Steven Rostedt wrote:
> Namhyung,
>
> Just an FYI...
>
> -- Steve
>
>
> On Thu, 2 Mar 2017 12:49:40 -0500
> Steven Rostedt <rost...@goodmis.org> wrote:
>
> > On Wed, 1 Mar 2017 22:47:30 -0500
> > Steven Rostedt <rost...@goodmis.org> wrote:
> >
> > > On Wed, 1 Mar 2017 22:28:43 -0500
> > > Steven Rostedt <rost...@goodmis.org> wrote:
> > > >
> > > > 4.10 is fine. It's what has been merged for 4.11 that's broken. I'm
> > > > doing a bisect now to see what broke it. Yes, lots of commits touched
> > > > that code recently.
> > >
> > > I found the bad commit. I'll have a patch for you to test tomorrow.
> > >
> >
> > Can you test this patch please.
Awesome, seems to work fine now.
I applied and tested it on bleeding edge:
commit 4977ab6e92e267afe9d8f78438c3db330ca8434c
Date: Wed Mar 1 17:04:50 2017 -0800
and it works on both msleep and do_one_initcall.
Thanks!
> >
> > -- Steve
> >
> > diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
> > index 2d554a0..1b33a41 100644
> > --- a/kernel/trace/ftrace.c
> > +++ b/kernel/trace/ftrace.c
> > @@ -4403,10 +4403,9 @@ static void __init set_ftrace_early_graph(char *buf,
> > int enable)
> > char *func;
> > struct ftrace_hash *hash;
> >
> > - if (enable)
> > - hash = ftrace_graph_hash;
> > - else
> > - hash = ftrace_graph_notrace_hash;
> > + hash = alloc_ftrace_hash(FTRACE_HASH_DEFAULT_BITS);
> > + if (WARN_ON(!hash))
> > + return;
> >
> > while (buf) {
> > func = strsep(&buf, ",");
> > @@ -4416,6 +4415,11 @@ static void __init set_ftrace_early_graph(char *buf,
> > int enable)
> > printk(KERN_DEBUG "ftrace: function %s not "
> > "traceable\n", func);
> > }
> > +
> > + if (enable)
> > + ftrace_graph_hash = hash;
> > + else
> > + ftrace_graph_notrace_hash = hash;
> > }
> > #endif /* CONFIG_FUNCTION_GRAPH_TRACER */
> >
>
