linux-kernel - Re: 4.14 backport request for dbdda842fe96f: "printk: Add console owner and waiter logic to load balance console writes"

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Date:   Mon, 22 Oct 2018 11:32:26 +0200
From:   Petr Mladek <pmladek@...e.com>
To:     Daniel Wang <wonderfly@...gle.com>
Cc:     sergey.senozhatsky.work@...il.com, rostedt@...dmis.org,
        stable@...r.kernel.org, Alexander.Levin@...rosoft.com,
        akpm@...ux-foundation.org, byungchul.park@....com,
        dave.hansen@...el.com, hannes@...xchg.org, jack@...e.cz,
        linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
        Mel Gorman <mgorman@...e.de>, mhocko@...nel.org, pavel@....cz,
        penguin-kernel@...ove.sakura.ne.jp, peterz@...radead.org,
        tj@...nel.org, torvalds@...ux-foundation.org, vbabka@...e.cz,
        Cong Wang <xiyou.wangcong@...il.com>,
        Peter Feiner <pfeiner@...gle.com>
Subject: Re: 4.14 backport request for dbdda842fe96f: "printk: Add console
 owner and waiter logic to load balance console writes"

On Sun 2018-10-21 11:09:22, Daniel Wang wrote:
> Just got back from vacation. Thanks for the continued discussion. Just so
> I understand the current state. Looks like we've got a pretty good explanation
> of what's going on (though not completely sure), and backporting Steven's
> patches is still the way to go? I see that Sergey had sent an RFC series
> for similar things. Are those trying to solve the deadlock problem in a
> different way?On Thu, Oct 4, 2018 at 1:55 AM Sergey Senozhatsky

I suggest to go with backporting Steven's patchset. We do not have
anything better at the moment.

Best Regards,
Petr