# Re: \[PATCH v8 10/12\] unwind\_user/sframe: Enable debugging in uaccess regions

- From: Linus Torvalds \<torvalds@linux-foundation.org\>
- Date: 2025-07-08 15:54:15 
- List: linux-trace-kernel
- Page: https://ratatoskr.run/linux-trace-kernel/2025/07/3125798
- Thread: https://ratatoskr.run/linux-trace-kernel/2025/07/3124692/t.md

```text
On Tue, 8 Jul 2025 at 07:41, Steven Rostedt [ref] wrote:
>
> Would something like this work? If someone enables the config to enable the
> validation, I don't think we need dynamic printk to do it (as that requires
> passing in the format directly and not via a pointer).

I really think you should just not use 'user_access_begin()" AT ALL if
you need to play these kinds of games.

               Linus
```