On Wed, Jun 18, 2025 at 11:29:39AM -0400, Steven Rostedt wrote: > Note, a request from the gcc folks is to add a system call that gives the > user space application a backtrace from its current location. This can be > handy for debugging as it would be similar to how we use dump_stack(). That makes very little sense to me; apps can typically unwind themselves just fine, no? In fact, they can use DWARFs and all that. Also, how about we don't make thing complicated and not confuse comments with things like this? Focus on the deferred stuff (that's what these patches are about) -- and then return-to-user is the one and only place that makes sense.