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

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Message-ID: <87a4xxlqz8.fsf@jogness.linutronix.de>
Date: Wed, 28 Jan 2026 16:09:07 +0106
From: John Ogness <john.ogness@...utronix.de>
To: Breno Leitao <leitao@...ian.org>, Breno Leitao <leitao@...ian.org>,
 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
Cc: 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

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>