Re: [PATCH -tip v4 10/12] x86/kprobes: Push a fake return address at kretprobe_trampoline

Steven Rostedt
2021-03-26T14:20:09Z

On Fri, 26 Mar 2021 21:03:49 +0900
Masami Hiramatsu <mhiramat@kernel.org> wrote:

> I confirmed this is not related to this series, but occurs when I build kernels with different
> configs without cleanup.
>
> Once I build kernel with CONFIG_UNWIND_GUESS=y (for testing), and after that,
> I build kernel again with CONFIG_UNWIND_ORC=y (but without make clean), this
> happened. In this case, I guess ORC data might be corrupted?
> When I cleanup and rebuild, the stacktrace seems correct.

Hmm, that should be fixed. Seems like we are missing a dependency somewhere.

-- Steve