1 files changed, 39 insertions, 0 deletions
diff --git a/debian/patches-rt/0026-panic-Mark-emergency-section-in-warn.patch b/debian/patches-rt/0026-panic-Mark-emergency-section-in-warn.patch
new file mode 100644
index 0000000000..37bf7b8fab
--- /dev/null
+++ b/debian/patches-rt/0026-panic-Mark-emergency-section-in-warn.patch
@@ -0,0 +1,39 @@
+From: Thomas Gleixner <tglx@linutronix.de>
+Date: Mon, 11 Sep 2023 15:53:04 +0000
+Subject: [PATCH 26/46] panic: Mark emergency section in warn
+Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/6.9/older/patches-6.9-rt5.tar.xz
+
+Mark the full contents of __warn() as an emergency section. In
+this section, the CPU will not perform console output for the
+printk() calls. Instead, a flushing of the console output is
+triggered when exiting the emergency section.
+
+Co-developed-by: John Ogness <john.ogness@linutronix.de>
+Signed-off-by: John Ogness <john.ogness@linutronix.de>
+Signed-off-by: Thomas Gleixner (Intel) <tglx@linutronix.de>
+Reviewed-by: Petr Mladek <pmladek@suse.com>
+Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+---
+ kernel/panic.c |    4 ++++
+ 1 file changed, 4 insertions(+)
+
+--- a/kernel/panic.c
++++ b/kernel/panic.c
+@@ -671,6 +671,8 @@ struct warn_args {
+ void __warn(const char *file, int line, void *caller, unsigned taint,
+ 	    struct pt_regs *regs, struct warn_args *args)
+ {
++	nbcon_cpu_emergency_enter();
++
+ 	disable_trace_on_warning();
+ 
+ 	if (file)
+@@ -706,6 +708,8 @@ void __warn(const char *file, int line,
+ 
+ 	/* Just a warning, don't kill lockdep. */
+ 	add_taint(taint, LOCKDEP_STILL_OK);
++
++	nbcon_cpu_emergency_exit();
+ }
+ 
+ #ifdef CONFIG_BUG