On Wed, 14 Feb 2024 13:04:09 -0500
Steven Rostedt wrote:
> On Wed, 7 Feb 2024 00:10:04 +0900
> "Masami Hiramatsu (Google)" wrote:
>
> > diff --git a/kernel/trace/fgraph.c b/kernel/trace/fgraph.c
> > index ae42de909845..323a74623543 100644
> > --- a/kernel/trace/fgraph.c
> > +++ b/kernel/trace/
On Wed, 7 Feb 2024 00:10:04 +0900
"Masami Hiramatsu (Google)" wrote:
> diff --git a/kernel/trace/fgraph.c b/kernel/trace/fgraph.c
> index ae42de909845..323a74623543 100644
> --- a/kernel/trace/fgraph.c
> +++ b/kernel/trace/fgraph.c
> @@ -99,10 +99,44 @@ enum {
> DEFINE_STATIC_KEY_FALSE(kill_ftr
From: Masami Hiramatsu (Google)
Since the fgraph_array index is used for the bitmap on the shadow
stack, it may leave some entries after a function_graph instance is
removed. Thus if another instance reuses the fgraph_array index soon
after releasing it, the fgraph may confuse to call the newer c
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