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Date:   Wed, 24 Jan 2018 10:36:07 +0100
From:   Peter Zijlstra <peterz@infradead.org>
To:     Tejun Heo <tj@kernel.org>
Cc:     Petr Mladek <pmladek@suse.com>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        akpm@linux-foundation.org, Steven Rostedt <rostedt@goodmis.org>,
        Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
        linux-mm@kvack.org, Cong Wang <xiyou.wangcong@gmail.com>,
        Dave Hansen <dave.hansen@intel.com>,
        Johannes Weiner <hannes@cmpxchg.org>,
        Mel Gorman <mgorman@suse.de>, Michal Hocko <mhocko@kernel.org>,
        Vlastimil Babka <vbabka@suse.cz>, Jan Kara <jack@suse.cz>,
        Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
        Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>,
        rostedt@home.goodmis.org, Byungchul Park <byungchul.park@lge.com>,
        Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>,
        Pavel Machek <pavel@ucw.cz>, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v5 0/2] printk: Console owner and waiter logic cleanup
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On Wed, Jan 10, 2018 at 09:02:23AM -0800, Tejun Heo wrote:
> 1. Console is IPMI emulated serial console.  Super slow.  Also
>    netconsole is in use.

So my IPMI SoE typically run at 115200 Baud (or higher) and I've not had
trouble like that (granted I don't typically trigger OOM storms, but
they do occasionally happen).

Is your IPMI much slower and not fixable to be faster?