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Date: Thu, 9 Nov 2017 19:22:58 +0900 From: Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp> To: mhocko@...nel.org, rostedt@...dmis.org Cc: linux-kernel@...r.kernel.org, akpm@...ux-foundation.org, linux-mm@...ck.org, xiyou.wangcong@...il.com, dave.hansen@...el.com, hannes@...xchg.org, mgorman@...e.de, pmladek@...e.com, sergey.senozhatsky@...il.com, vbabka@...e.cz, peterz@...radead.org, torvalds@...ux-foundation.org, jack@...e.cz, mathieu.desnoyers@...icios.com, rostedt@...e.goodmis.org Subject: Re: [PATCH v4] printk: Add console owner and waiter logic to loadbalance console writes Michal Hocko wrote: > Hi, > assuming that this passes warn stall torturing by Tetsuo, do you think > we can drop http://lkml.kernel.org/r/1509017339-4802-1-git-send-email-penguin-kernel@I-love.SAKURA.ne.jp > from the mmotm tree? I don't think so. The rule that "do not try to printk() faster than the kernel can write to consoles" will remain no matter how printk() changes. Unless asynchronous approach like https://lwn.net/Articles/723447/ is used, I think we can't obtain useful information.
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