# Re: \[PATCH v10 04/14\] unwind\_user/deferred: Add unwind\_deferred\_trace()

- From: Peter Zijlstra \<peterz@infradead.org\>
- Date: 2025-06-18 13:54:50 
- List: linux-trace-kernel
- Page: https://ratatoskr.run/linux-trace-kernel/2025/06/3097470
- Thread: https://ratatoskr.run/linux-trace-kernel/2025/06/3086227/t.md

```text
On Tue, Jun 10, 2025 at 08:54:25PM -0400, Steven Rostedt wrote:
> From: Steven Rostedt <rostedt@goodmis.org>
> 
> Add a function that must be called inside a faultable context that will
> retrieve a user space stack trace. The function unwind_deferred_trace()
> can be called by a tracer when a task is about to enter user space, or has
> just come back from user space and has interrupts enabled.

This is word salad; I really can't make much of it.

Let me go read the patch to see if that makes more sense.
```