linux-kernel - Re: [PATCH v2] printk: Use the main logbuf in NMI when logbuf

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Message-ID: <20170520090451.GA406@tigerII.localdomain>
Date:   Sat, 20 May 2017 18:04:51 +0900
From:   Sergey Senozhatsky <sergey.senozhatsky@...il.com>
To:     Petr Mladek <pmladek@...e.com>
Cc:     Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>,
        Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Russell King <rmk+kernel@....linux.org.uk>,
        Daniel Thompson <daniel.thompson@...aro.org>,
        Ingo Molnar <mingo@...hat.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Chris Metcalf <cmetcalf@...hip.com>, x86@...nel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] printk: Use the main logbuf in NMI when logbuf_lock
 is available

On (05/19/17 15:02), Petr Mladek wrote:
> > [..]
> > 
> > > the problem is that
> > > 
> > > 	`PRINTK_NMI_CONTEXT_MASK || PRINTK_NMI_DEFERRED_CONTEXT_MASK' is 0x01
> > 
> > d'oh... forgot to copy-paste this...
> 
> Grrr, thanks a lot for chasing this down and I am sorry for the troubles.

no worries :)


> I have rebased both for-4.13 and for-next branches in printk.git
> with this fix. I wanted to get rid of this bug in linux-next
> ASAP. Please, let me know if you would prefer to handle
> this another way in the future.

we are cool ;) thanks.

	-ss