Re: [PATCH v8 1/1] ptrace,syscall_user_dispatch: checkpoint/restore support for SUD

Oleg Nesterov
2023-01-31T18:59:21Z

On 01/31, Gregory Price wrote:
>
> Implement ptrace getter/setter interface for syscall user dispatch.
>
> These prctl settings are presently write-only, making it impossible to
> implement transparent checkpoint/restore via software like CRIU.
>
> 'on_dispatch' field is not exposed because it is a kernel-internal
> only field that cannot be 'true' when returning to userland.
>
> Signed-off-by: Gregory Price <gregory.price@memverge.com>

Reviewed-by: Oleg Nesterov <oleg@redhat.com>