Re: [RFC PATCH 07/86] Revert "livepatch,sched: Add livepatch task switching to cond_resched()"

[Steven Rostedt]

On Thu, 9 Nov 2023 09:51:18 -0800
Josh Poimboeuf <jpoimboe@xxxxxxxxxx> wrote:

> > I guess I'm not fully understanding what the cond rescheds are for. But
> > would an IPI to all CPUs setting NEED_RESCHED, fix it?  
> 
> If all livepatch arches had the ORC unwinder, yes.
> 
> The problem is that frame pointer (and similar) unwinders can't reliably
> unwind past an interrupt frame.

Perhaps we can use this to push those archs with bad unwinders to port over
ORC unwinding ;-)

-- Steve