Commit d2e85ca7 authored by John Ogness's avatar John Ogness Committed by Petr Mladek
Browse files

printk: Flush nbcon consoles first on panic 



In console_flush_on_panic(), flush the nbcon consoles before
flushing legacy consoles. The legacy write() callbacks are not
fully safe when oops_in_progress is set.

Signed-off-by: default avatarJohn Ogness <john.ogness@linutronix.de>
Reviewed-by: default avatarPetr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20240820063001.36405-26-john.ogness@linutronix.de


Signed-off-by: default avatarPetr Mladek <pmladek@suse.com>
parent 8ba77712

kernel/printk/printk.c

+3 −0
Original line number Diff line number Diff line
@@ -3269,6 +3269,9 @@ void console_flush_on_panic(enum con_flush_mode mode) 
	if (mode == CONSOLE_REPLAY_ALL)

		__console_rewind_all();



	if (!have_boot_console)

		nbcon_atomic_flush_pending();



	console_flush_all(false, &next_seq, &handover);

}