linux-kernel - Re: sched/fair: Hard lockup from idle_balance()/task_numa

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Message-ID: <20171106102444.GF3165@worktop.lehotels.local>
Date:   Mon, 6 Nov 2017 11:24:44 +0100
From:   Peter Zijlstra <peterz@...radead.org>
To:     Ed Swierk <eswierk@...portsystems.com>
Cc:     Ingo Molnar <mingo@...hat.com>, linux-kernel@...r.kernel.org
Subject: Re: sched/fair: Hard lockup from idle_balance()/task_numa_migrate()
 race

On Mon, Oct 16, 2017 at 04:11:39PM -0700, Ed Swierk wrote:
> Ping for Peter, Ingo and other sched maintainers:
> 
> I'd appreciate any feedback on this hard lockup issue, which occurred
> on a system running kernel 4.4.52-grsec.

So I'm currently somewhat tied up with things, and the other guy who
knows this (Rik) is currently on holidays. I did forward your problem to
him, but you'll just have to wait a bit.