linux-kernel - Re: WARN_ON_ONCE(!new_owner) within wake_futex

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Message-ID: <alpine.DEB.2.21.1901222212490.1628@nanos.tec.linutronix.de>
Date:   Tue, 22 Jan 2019 22:14:00 +0100 (CET)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Heiko Carstens <heiko.carstens@...ibm.com>
cc:     Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...nel.org>,
        Martin Schwidefsky <schwidefsky@...ibm.com>,
        linux-kernel@...r.kernel.org, linux-s390@...r.kernel.org,
        Stefan Liebler <stli@...ux.ibm.com>
Subject: Re: WARN_ON_ONCE(!new_owner) within wake_futex_pi() triggered

On Mon, 21 Jan 2019, Thomas Gleixner wrote:
> On Mon, 21 Jan 2019, Heiko Carstens wrote:
> 
> > Hi Thomas,
> > 
> > [full quote below]
> > 
> > Did you have any time to look into this yet? :)
> > 
> > The warning is still reproducible.
> 
> Yeah, it's on my list of stuff which I need to take care of urgently. In
> the next couple of days I hope...

Hmm. Doesn't

     da791a667536 ("futex: Cure exit race")

address that issue?

Thanks,

	tglx