[PATCH] init/main.c Enable watchdog_thresh control from kernel line

From: Laurence Oberman
Date: Wed Oct 24 2018 - 11:21:42 EST

Both graphics and serial consoels are exposed to hard lockups
when handling a large amount of messaging. The kernel watchdog_thresh
parameter up to now has not been available to be set on the kernel line for
early boot.
This patch allows the setting of watchdog_thresh to be increased
when needed to avoid the hard lockups in the console code.

Signed-off-by: Laurence Oberman <loberman@xxxxxxxxxx>
init/main.c | 9 +++++++++
1 file changed, 9 insertions(+)

diff --git a/init/main.c b/init/main.c
index e4a3160..5882750 100644
--- a/init/main.c
+++ b/init/main.c
@@ -977,6 +977,15 @@ static int __init set_debug_rodata(char *str)
__setup("rodata=", set_debug_rodata);

+static int __init
+is_watchdog_thresh_setup(char *str)
+ get_option(&str, &watchdog_thresh);
+ return 1;
+__setup("watchdog_thresh=", is_watchdog_thresh_setup);
static void mark_readonly(void)