linux-kernel - Re: [PATCH] netconsole: Append kernel version to message

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Message-ID: <ZKQ3o6byAaJfxHK+@gmail.com>
Date:   Tue, 4 Jul 2023 08:15:47 -0700
From:   Breno Leitao <leitao@...ian.org>
To:     Stephen Hemminger <stephen@...workplumber.org>
Cc:     "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, sergey.senozhatsky@...il.com,
        pmladek@...e.com, tj@...nel.or,
        Dave Jones <davej@...emonkey.org.uk>,
        "open list:NETWORKING DRIVERS" <netdev@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] netconsole: Append kernel version to message

Hello Stephen,

On Mon, Jul 03, 2023 at 11:34:10AM -0700, Stephen Hemminger wrote:
> On Mon,  3 Jul 2023 08:41:54 -0700
> leitao@...ian.org wrote:
> 
> > +config NETCONSOLE_UNAME
> > +	bool "Add the kernel version to netconsole lines"
> > +	depends on NETCONSOLE
> > +	default n
> > +	help
> > +	  This option causes extended netcons messages to be prepended with
> > +	  kernel uname version. This can be useful for monitoring a large
> > +	  deployment of servers, so, you can easily map outputs to kernel
> > +	  versions.
> 
> This should be runtime configured like other netconsole options.
> Not enabled at compile time.

Do you mean I should add a new option to netconsole line? This is the
current line format today:

	[+][src-port]@[src-ip]/[<dev>],[tgt-port]@<tgt-ip>/[tgt-macaddr]

If that is the case, I suppose I want to add something at the beginning
of format, that specify that uname should be sent. What about something
as?

	[u][+][src-port]@[src-ip]/[<dev>],[tgt-port]@<tgt-ip>/[tgt-macaddr]

Thanks!