linux-kernel - Re: [PATCH net-next v5 4/4] netconsole: Use printk context for CPU and task information

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Message-ID: <aXo9DO9OCJ0I7ID5@gmail.com>
Date: Wed, 28 Jan 2026 08:46:10 -0800
From: Breno Leitao <leitao@...ian.org>
To: John Ogness <john.ogness@...utronix.de>
Cc: Andrew Lunn <andrew+netdev@...n.ch>, 
	"David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, 
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, pmladek@...e.com, 
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Steven Rostedt <rostedt@...dmis.org>, 
	Sergey Senozhatsky <senozhatsky@...omium.org>, Andrew Morton <akpm@...ux-foundation.org>, 
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org, asantostc@...il.com, efault@....de, 
	gustavold@...il.com, calvin@...nvd.org, jv@...sburgh.net, mpdesouza@...e.com, 
	kernel-team@...a.com
Subject: Re: [PATCH net-next v5 4/4] netconsole: Use printk context for CPU
 and task information

Hello John,

On Wed, Jan 28, 2026 at 04:09:07PM +0106, John Ogness wrote:
> On 2026-01-28, Breno Leitao <leitao@...ian.org> wrote:
> > Use the CPU and task name captured at printk() time from
> > nbcon_write_context instead of querying the current execution context.
> > This provides accurate information about where the message originated,
> > rather than where netconsole happens to be running.
> >
> > For CPU, use wctxt->cpu instead of raw_smp_processor_id().
> >
> > For taskname, use wctxt->comm directly which contains the task
> > name captured at printk time.
> >
> > This change ensures netconsole outputs reflect the actual context that
> > generated the log message, which is especially important when the
> > console driver runs asynchronously in a dedicated thread.
> >
> > Signed-off-by: Breno Leitao <leitao@...ian.org>
> 
> Reviewed-by: John Ogness <john.ogness@...utronix.de>

Thank you so much for all the reviews and your support throughout this
migration. I really appreciate it!

---breno