linux-kernel - Re: Warning on __wait_on

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Date:   Mon, 9 Oct 2017 15:41:51 -0700
From:   Cong Wang <xiyou.wangcong@...il.com>
To:     Tom Green <tom.vs.green@...il.com>
Cc:     Tejun Heo <tj@...nel.org>, Shaohua Li <shli@...com>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: Warning on __wait_on_bit

Hi, Tom

On Sat, Sep 30, 2017 at 1:55 AM, Tom Green <tom.vs.green@...il.com> wrote:
> Hi Tejun Cong Shaohua,
>
> I just observed the same problem in https://lkml.org/lkml/2016/12/9/373. It
> seems to be exactly same as decribed in https://lwn.net/Articles/628628/.
> Any progress? Thanks.

Sorry for the delay, I was on vacation.

Could you try the attached patch (against the latest Linus tree)?
I did a quick boot test, it runs well.

Thanks!

View attachment "io-wait-bit.diff" of type "text/plain" (11261 bytes)