printk · Maintained

Maintainers

• M Petr Mladek <pmladek@suse.com>
• R Steven Rostedt <rostedt@goodmis.org>
• R John Ogness <john.ogness@linutronix.de>
• R Sergey Senozhatsky <senozhatsky@chromium.org>

Paths

• F Documentation/core-api/printk-basics.rst
• F include/linux/printk.h
• F kernel/printk/

Last 30 days

Most active threads (last 7 days)

• HOTtoday [PATCH] nbcon/reboot: Flush nbcon consoles synchronously on reboot
  2026-10-12 14:14 · 2 replies in 7d · Petr Mladek <pmladek@suse.com>

Active reviewers (last 30 days)

• kernel test robot <hidden>
  1 attestation (1 Reported-by) · last on 2026-10-08
• John Ogness <john.ogness@linutronix.de>
  1 attestation (1 Suggested-by) · last on 2026-10-08

Recent patches

Most-recent 30 patches in this subsystem on linux-serial (capped at 30), ordered by date desc.

• DORMANTno replies Re: [PATCH] nbcon/reboot: Flush nbcon consoles synchronously on reboot
  2026-10-12 · John Ogness <john.ogness@linutronix.de>
• HOTtoday Re: [PATCH] nbcon/reboot: Flush nbcon consoles synchronously on reboot
  2026-10-09 · Petr Mladek <pmladek@suse.com>
• HOTtoday [PATCH] nbcon/reboot: Flush nbcon consoles synchronously on reboot
  2026-10-08 · Petr Mladek <pmladek@suse.com>
• COOLING11d LANDED [PATCH v4 1/1] braille: nbcon: Allow to use a serial console with NBCON API as Braille console
  2026-10-01 · Petr Mladek <pmladek@suse.com>
• COOLING11d SUPERSEDED [PATCH v3 1/1] braille: nbcon: Allow to use a serial console with NBCON API as Braille console
  2026-10-01 · Petr Mladek <pmladek@suse.com>
• COOLING13d SUPERSEDED [PATCH v2 1/1] braille: nbcon: Allow to use a serial console with NBCON API as Braille console
  2026-09-25 · Petr Mladek <pmladek@suse.com>
• COLD18d Re: [linux-next:master] [serial] d353934702: BUG:kernel_reboot-without-warning_in_test_stage
  2026-09-23 · Petr Mladek <pmladek@suse.com>
• COOLING13d [PATCH 1/2] printk: nbcon: Introduce Braille helpers
  2026-09-22 · Petr Mladek <pmladek@suse.com>
• DORMANTno replies Re: [PATCH tty v11 1/2] serial: 8250: Switch to nbcon console, take 2
  2026-08-27 · John Ogness <john.ogness@linutronix.de>
• COLD46d Re: [PATCH tty v11 1/2] serial: 8250: Switch to nbcon console, take 2
  2026-08-27 · John Ogness <john.ogness@linutronix.de>
• COLD46d Re: [PATCH tty v11 1/2] serial: 8250: Switch to nbcon console, take 2
  2026-08-22 · John Ogness <john.ogness@linutronix.de>
• COLD53d Re: [PATCH] m68k: nfcon: don't call console_is_registered in nfcon_device
  2026-08-20 · Petr Mladek <pmladek@suse.com>
• STALE258d [PATCH] printk, vt, fbcon: Remove console_conditional_schedule()
  2026-01-26 · Sebastian Andrzej Siewior <bigeasy@linutronix.de>
• STALE264d printk's threaded legacy console + fbcon => schedule where it should not
  2026-01-14 · Sebastian Andrzej Siewior <bigeasy@linutronix.de>
• STALE234d Re: [PATCH 06/19] printk: Introduce register_console_force
  2026-01-14 · Petr Mladek <pmladek@suse.com>
• STALE234d [PATCH 19/19] printk: Remove CON_ENABLED flag
  2025-12-27 · Marcos Paulo de Souza <hidden>
• STALE234d [PATCH 06/19] printk: Introduce register_console_force
  2025-12-27 · Marcos Paulo de Souza <hidden>
• STALE234d [PATCH 05/19] printk: Add more context to suspend/resume functions
  2025-12-27 · Marcos Paulo de Souza <hidden>
• STALE234d [PATCH 04/19] printk: Reintroduce consoles_suspended global state
  2025-12-27 · Marcos Paulo de Souza <hidden>
• STALE234d [PATCH 03/19] printk: Drop flags argument from console_is_usable
  2025-12-27 · Marcos Paulo de Souza <hidden>
• STALE234d [PATCH 02/19] printk: Introduce console_is_nbcon
  2025-12-27 · Marcos Paulo de Souza <hidden>
• STALE234d [PATCH 01/19] printk/nbcon: Use an enum to specify the required callback in console_is_usable()
  2025-12-27 · Marcos Paulo de Souza <hidden>
• STALE314d Re: [PATCH v2 4/4] printk: Make console_{suspend,resume} handle CON_SUSPENDED
  2025-11-27 · Petr Mladek <pmladek@suse.com>
• STALE314d [PATCH v2 4/4] printk: Make console_{suspend,resume} handle CON_SUSPENDED
  2025-11-21 · Marcos Paulo de Souza <hidden>
• STALE314d LANDED [PATCH v2 3/4] printk: Use console_is_usable on console_unblank
  2025-11-21 · Marcos Paulo de Souza <hidden>
• STALE347d LANDED [PATCH 3/3] printk/nbcon: Release nbcon consoles ownership in atomic flush after each emitted record
  2025-09-26 · Petr Mladek <pmladek@suse.com>
• STALE347d LANDED [PATCH 2/3] printk/nbcon/panic: Allow printk kthread to sleep when the system is in panic
  2025-09-26 · Petr Mladek <pmladek@suse.com>
• STALE347d LANDED [PATCH 1/3] printk/nbcon: Block printk kthreads when any CPU is in an emergency context
  2025-09-26 · Petr Mladek <pmladek@suse.com>
• STALE379d REVIEWED: 4 (4M) Re: [RFC 0/1] serial: 8250: nbcon_atomic_flush_pending() might trigger watchdog warnigns
  2025-09-24 · Petr Mladek <pmladek@suse.com>
• STALE379d Re: [RFC 0/1] serial: 8250: nbcon_atomic_flush_pending() might trigger watchdog warnigns
  2025-09-22 · Petr Mladek <pmladek@suse.com>

Quiet for 30+ days

Patches with no review trailers and no replies. Either the author is heads-down elsewhere or these slipped through. Oldest first.

• DORMANTno replies Re: [PATCH tty v11 1/2] serial: 8250: Switch to nbcon console, take 2
  2026-08-27 · John Ogness <john.ogness@linutronix.de>