Merging debian version 6.8.9-1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 40 insertions, 0 deletions

diff --git a/debian/patches-rt/0034-printk-Atomic-print-in-printk-context-on-shutdown.patch b/debian/patches-rt/0034-printk-Atomic-print-in-printk-context-on-shutdown.patch
new file mode 100644
index 000000000..68b58b5f4
--- /dev/null
+++ b/debian/patches-rt/0034-printk-Atomic-print-in-printk-context-on-shutdown.patch
@@ -0,0 +1,40 @@
+From: John Ogness <john.ogness@linutronix.de>
+Date: Mon, 23 Oct 2023 17:43:48 +0000
+Subject: [PATCH 34/48] printk: Atomic print in printk context on shutdown
+Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/6.8/older/patches-6.8.2-rt11.tar.xz
+
+For nbcon consoles, normally the printing is handled by the
+dedicated console printing threads. However, on shutdown the
+printing threads may not get a chance to print the final
+messages.
+
+When shutting down or rebooting (system_state > SYSTEM_RUNNING),
+perform atomic printing from the printk() caller context.
+
+Signed-off-by: John Ogness <john.ogness@linutronix.de>
+Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+---
+ kernel/printk/printk.c |    7 ++++++-
+ 1 file changed, 6 insertions(+), 1 deletion(-)
+
+--- a/kernel/printk/printk.c
++++ b/kernel/printk/printk.c
+@@ -2402,12 +2402,17 @@ asmlinkage int vprintk_emit(int facility
+ 		 *
+ 		 * - When this CPU is in panic.
+ 		 *
++		 * - During shutdown, since the printing threads may not get
++		 *   a chance to print the final messages.
++		 *
+ 		 * Note that if boot consoles are registered, the console
+ 		 * lock/unlock dance must be relied upon instead because nbcon
+ 		 * consoles cannot print simultaneously with boot consoles.
+ 		 */
+-		if (is_panic_context)
++		if (is_panic_context ||
++		    (system_state > SYSTEM_RUNNING)) {
+ 			nbcon_atomic_flush_pending();
++		}
+ 	}
+ 
+ 	if (do_trylock_unlock) {