linux-kernel - Re: [ANNOUNCE] v4.11.5-rt1

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Message-ID: <20170619104131.05fdc76f@gandalf.local.home>
Date:   Mon, 19 Jun 2017 10:41:31 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Cc:     Mike Galbraith <efault@....de>,
        Thomas Gleixner <tglx@...utronix.de>,
        LKML <linux-kernel@...r.kernel.org>,
        linux-rt-users <linux-rt-users@...r.kernel.org>
Subject: Re: [ANNOUNCE] v4.11.5-rt1

On Mon, 19 Jun 2017 16:13:41 +0200
Sebastian Andrzej Siewior <bigeasy@...utronix.de> wrote:


> > Hmm, it shouldn't affect futexes, as it's only called by rtmutex when
> > waiter->savestate is true. And that should always be false for futex.  
> 
> you still have sleeping locks like the hb-lock (which might matter in
> case the task blocks on the lock and does not continue for some reason).

But then I'd expect this to be an issue with any spinlock in the kernel.

-- Steve