1 files changed, 39 insertions, 0 deletions
diff --git a/debian/patches-rt/0058-printk-Add-force_early_printk-boot-param-to-help-wit.patch b/debian/patches-rt/0058-printk-Add-force_early_printk-boot-param-to-help-wit.patch
new file mode 100644
index 000000000..68fc30c35
--- /dev/null
+++ b/debian/patches-rt/0058-printk-Add-force_early_printk-boot-param-to-help-wit.patch
@@ -0,0 +1,39 @@
+From fa9f6eea1ebbb987a57d889ad00f142a21aa1843 Mon Sep 17 00:00:00 2001
+From: Peter Zijlstra <peterz@infradead.org>
+Date: Fri, 2 Sep 2011 14:41:29 +0200
+Subject: [PATCH 058/347] printk: Add "force_early_printk" boot param to help
+ with debugging
+Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.246-rt110.tar.xz
+
+Gives me an option to screw printk and actually see what the machine
+says.
+
+Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
+Link: http://lkml.kernel.org/r/1314967289.1301.11.camel@twins
+Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
+Link: http://lkml.kernel.org/n/tip-ykb97nsfmobq44xketrxs977@git.kernel.org
+---
+ kernel/printk/printk.c | 7 +++++++
+ 1 file changed, 7 insertions(+)
+
+diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
+index 963c20ab9548..7b774743e1ac 100644
+--- a/kernel/printk/printk.c
++++ b/kernel/printk/printk.c
+@@ -437,6 +437,13 @@ asmlinkage void early_printk(const char *fmt, ...)
+  */
+ static bool __read_mostly printk_killswitch;
+ 
++static int __init force_early_printk_setup(char *str)
++{
++	printk_killswitch = true;
++	return 0;
++}
++early_param("force_early_printk", force_early_printk_setup);
++
+ void printk_kill(void)
+ {
+ 	printk_killswitch = true;
+-- 
+2.36.1
+