netconsole: Use printk context for CPU and task information

Browse source

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.

Reviewed-by: John Ogness <john.ogness@linutronix.de>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Breno Leitao <leitao@debian.org>
Link: https://patch.msgid.link/20260206-nbcon-v7-4-62bda69b1b41@debian.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

...

This commit is contained in:

Breno Leitao 2026-02-06 04:45:32 -08:00 • committed by Jakub Kicinski

parent 7eab73b186

commit 79ba362b43

1 changed files with 23 additions and 17 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

40

drivers/net/netconsole.c

View file