linux-kernel - Re: printk discussions at KS

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Message-ID: <20171102124547.GC31148@pathway.suse.cz>
Date:   Thu, 2 Nov 2017 13:45:47 +0100
From:   Petr Mladek <pmladek@...e.com>
To:     Joe Perches <joe@...ches.com>
Cc:     Steven Rostedt <srostedt@...hat.com>,
        Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: printk discussions at KS

On Wed 2017-11-01 19:12:23, Joe Perches wrote:
> As I was not there, and I know about as much as anyone
> about printk internals, can you please post a recap of
> what was discussed, technical and other, about printk
> improvements at the kernel-summit?
> 
> If there was a pdf/powerpoint, that'd be nice to post too.

There is a nice summary of the discussion at
https://lwn.net/Articles/737822/

In short, it is the old problem with possible soft-lockups.
There were send many variants of a solution based on offloading
and kthreads. We discussed yet another solution proposed
by Steven.

Best Regards,
Petr