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Date: Mon, 26 Oct 2015 21:20:36 +0100
From: Peter Zijlstra <peterz@infradead.org>
To: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>, linux-kernel@vger.kernel.org,
        Tejun Heo <tj@kernel.org>, Oleg Nesterov <oleg@redhat.com>,
        Ingo Molnar <mingo@kernel.org>, Rik van Riel <riel@redhat.com>,
        Martin Schwidefsky <schwidefsky@de.ibm.com>,
        Tobias Orlamuende <orlam@de.ibm.com>
Subject: Re: [RFC][PATCH] sched: Start stopper early
Message-ID: <20151026202036.GY2508@worktop.programming.kicks-ass.net>
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On Mon, Oct 26, 2015 at 03:24:36PM +0100, Michael Holzheu wrote:
> On Fri, 16 Oct 2015 14:01:25 +0200
> Heiko Carstens <heiko.carstens@de.ibm.com> wrote:
> 
> > On Fri, Oct 16, 2015 at 11:57:06AM +0200, Peter Zijlstra wrote:
> > > On Fri, Oct 16, 2015 at 10:22:12AM +0200, Heiko Carstens wrote:
> > > > So, actually this doesn't fix the bug and it _seems_ to be reproducible.
> > > > 
> > > > [ FWIW, I will be offline for the next two weeks ]
> > > 
> > > So the series from Oleg would be good to try; I can make a git tree for
> > > you, or otherwise stuff the lot into a single patch.
> > > 
> > > Should I be talking to someone else whilst you're having down time?
> > 
> > Yes Michael Holzheu (on cc), can take care of this.
> 
> I tested Peter's "tip/master" and "tip/sched/core". With the following
> commit our issue seems to be fixed:
> 
> 2b621a085a ("stop_machine: Change cpu_stop_queue_two_works() to rely
> on stopper->enabled")
> 
> When do you plan to merge the patch series in the mainline kernel?

They're slated for the next merge window. Thanks for testing!