add cons fix

2 files changed, 31 insertions, 0 deletions

diff --git a/kmsg-cons-fix.patch b/kmsg-cons-fix.patch
new file mode 100644
index 0000000..1109747
--- /dev/null
+++ b/kmsg-cons-fix.patch
@@ -0,0 +1,30 @@
+From: Kay Sievers <kay@vrfy.org>
+Subject: kmsg: make sure all messages reach a newly registered boot console
+
+We suppress printing kmsg records to the console, which are already printed
+immediately while we have received their fragments.
+
+Newly registered boot consoles print the entire kmsg buffer during
+registration. Clear the console-suppress flag after we skipped the record
+during its first storage, so any later print will see these records as usual.
+
+Signed-off-by: Kay Sievers <kay@vrfy.org>
+---
+ kernel/printk.c |    6 ++++++
+ 1 file changed, 6 insertions(+)
+
+--- a/kernel/printk.c
++++ b/kernel/printk.c
+@@ -1951,6 +1951,12 @@ skip:
+ 			 */
+ 			console_idx = log_next(console_idx);
+ 			console_seq++;
++			/*
++			 * We will get here again when we register a new
++			 * CON_PRINTBUFFER console. Clear the flag so we
++			 * will properly dump everything later.
++			 */
++			msg->flags &= ~LOG_NOCONS;
+ 			goto skip;
+ 		}
+ 
diff --git a/series b/series
index 6d3b1ec..f23d26f 100644
--- a/series
+++ b/series
@@ -2,3 +2,4 @@ kmsg-escape.patch
 kmsg-facility-len.patch
 kmsg-nonblock-race.patch
 test-modules.patch
+kmsg-cons-fix.patch