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Date:   Tue, 29 Aug 2017 09:57:24 -0700
From:   Tim Chen <tim.c.chen@...ux.intel.com>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     "Liang, Kan" <kan.liang@...el.com>,
        Mel Gorman <mgorman@...hsingularity.net>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...e.hu>, Andi Kleen <ak@...ux.intel.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Johannes Weiner <hannes@...xchg.org>, Jan Kara <jack@...e.cz>,
        Christopher Lameter <cl@...ux.com>,
        "Eric W . Biederman" <ebiederm@...ssion.com>,
        Davidlohr Bueso <dave@...olabs.net>,
        linux-mm <linux-mm@...ck.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/2 v2] sched/wait: Introduce lock breaker in
 wake_up_page_bit

On 08/29/2017 09:24 AM, Linus Torvalds wrote:
> On Tue, Aug 29, 2017 at 9:13 AM, Tim Chen <tim.c.chen@...ux.intel.com> wrote:
>>
>> It is affecting not a production use, but the customer's acceptance
>> test for their systems.  So I suspect it is a stress test.
> 
> Can you gently poke them and ask if they might make theie stress test
> code available?
> 
> Tell them that we have a fix, but right now it's delayed into 4.14
> because we have no visibility into what it is that it actually fixes,
> and whether it's all that critical or just some microbenchmark.
> 

Thanks. We'll do that.

Tim

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