linux-kernel - Re: sched: system doesn't boot since "sched: Add new migrate

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Message-ID: <20201020115106.n474gls6oxfy5im4@linutronix.de>
Date:   Tue, 20 Oct 2020 13:51:06 +0200
From:   Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     Christian Eggers <ceggers@...i.de>, tglx@...utronix.de,
        linux-rt-users@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: sched: system doesn't boot since  "sched: Add new
 migrate_disable() implementation"

On 2020-10-20 13:41:37 [+0200], Peter Zijlstra wrote:
> Right, but this patch set doesn't include the lazy preemption stuff, and
> given the 'fun' Valentin and me are still having with it, I'd like to
> keep it like that.
> 
> But yes, that might warrant a slightly less NOP implementation.

Uh. Looking at the actual implementation we don't look at the mg-counter
but have preempt_lazy_disable() for that.
Let me sync your bits then.
Thanks.

Sebastian