linux-kernel - Re: sched: serial port lockdep warning when offlining CPUs

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Message-ID: <20170928122849.eesre6s2jadovq5j@hirez.programming.kicks-ass.net>
Date:   Thu, 28 Sep 2017 14:28:49 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>
Cc:     "Levin, Alexander (Sasha Levin)" <alexander.levin@...izon.com>,
        Sasha Levin <levinsasha928@...il.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...e.hu>,
        "linux-kernel@...r.kernel.org List" <linux-kernel@...r.kernel.org>,
        "pmladek@...e.com" <pmladek@...e.com>,
        "sergey.senozhatsky@...il.com" <sergey.senozhatsky@...il.com>,
        "rostedt@...dmis.org" <rostedt@...dmis.org>
Subject: Re: sched: serial port lockdep warning when offlining CPUs

On Thu, Sep 28, 2017 at 09:15:21PM +0900, Sergey Senozhatsky wrote:
> > I'll repost my patches now; otherwise I'll forget again anyway.
> 
> #define printk printk_deferred
> 
> should also do the trick and... make the kernel great again!  :)

That makes the kernel die silently, instead of first telling me wtf
happend ;-)