Re: [PATCH v2 0/22] MR4445: ntdll: Unwind the kernel stack on thread exit.

[Alexandre Julliard (＠julliard)]

On Tue Nov 21 20:45:25 2023 +0000, Rémi Bernon wrote:
> The reason is that there are cfi rules for it before we reach the kernel
> stack switch, and we need to override them again or it will fail to
> restore sp on unwind and crash. I think it could also perhaps be done
> through `.cfi_restore %rsp`.

Yes, but are the previous rules necessary? Why isn't switching the CFA sufficient?