Re: [PATCH v10 04/14] unwind_user/deferred: Add unwind_deferred_trace()

From: Peter Zijlstra
Date: Wed Jun 18 2025 - 09:55:40 EST


On Tue, Jun 10, 2025 at 08:54:25PM -0400, Steven Rostedt wrote:
> From: Steven Rostedt <rostedt@xxxxxxxxxxx>
>
> 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.