From: Peter Zijlstra <peterz@infradead.org>
To: "Paul E. McKenney" <paulmck@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>,
linux-kernel@vger.kernel.org, linux-next@vger.kernel.org,
Stephen Rothwell <sfr@canb.auug.org.au>,
Mark Brown <broonie@kernel.org>,
kernel-team@meta.com
Subject: Re: Shutdown-time hangs in -next in locktorture
Date: Sat, 20 Dec 2025 13:52:01 +0100 [thread overview]
Message-ID: <20251220125201.GZ3911114@noisy.programming.kicks-ass.net> (raw)
In-Reply-To: <7f63c3aa-5cf7-47a6-bdd9-d16d9ea65c63@paulmck-laptop>
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 :-(
next prev parent reply other threads:[~2025-12-20 12:52 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-12-20 0:29 Paul E. McKenney
2025-12-20 5:01 ` Paul E. McKenney
2025-12-20 12:52 ` Peter Zijlstra [this message]
2025-12-20 16:49 ` Paul E. McKenney
2026-01-15 0:16 ` Paul E. McKenney
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