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Message-ID: <aa4f7099-1eb9-17f8-973d-8a10a7db1d94@linux.intel.com> 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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