Re: Shutdown-time hangs in -next in locktorture

[Paul E. McKenney]

On Sat, Dec 20, 2025 at 01:52:01PM +0100, Peter Zijlstra wrote:
> On Fri, Dec 19, 2025 at 04:29:26PM -0800, Paul E. McKenney wrote:
> > Hello, Peter,
> > 
> > I started hitting shutdown-time hangs in next-20251217 which persist
> > in next-20251219.  This hang happens on both x86 and arm64.  Once I
> > figured out that the failure is high probability, but not deterministic,
> > bisection converged here:
> > 
> > 5d1f0b2f278e ("sched/core: Rework sched_class::wakeup_preempt() and rq_modified_*()")
> 
> That commit no longer exists in tip/sched/core; it was fixed a few days
> ago, except other problems made -next use an old tip branch which has
> caused this fix to have delayed visibility :-(

Very good, I will retry later.

							Thanx, Paul