Re: [PATCH v3 1/2] arm64: Implement arch_stack_walk_reliable

Josh Poimboeuf
2025-03-21T07:11:58Z

On Thu, Mar 20, 2025 at 10:15:58AM -0700, Song Liu wrote:
> With proper exception boundary detection, it is possible to implment
> arch_stack_walk_reliable without sframe.
>
> Note that, arch_stack_walk_reliable does not guarantee getting reliable
> stack in all scenarios. Instead, it can reliably detect when the stack
> trace is not reliable, which is enough to provide reliable livepatching.
>
> Signed-off-by: Song Liu <song@kernel.org>

Reviewed-by: Josh Poimboeuf <jpoimboe@kernel.org>

--
Josh