Hi,
On 10/24/18 8:21 AM, Laurence Oberman wrote:
> Both graphics and serial consoels are exposed to hard lockups
consoles
> 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 <lober...@redhat.com>
Please add corresponding documentation to the
Documentation/admin-guide/kernel-parameters.txt file.
Thanks.
> ---
> 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);
> #endif
>
> +static int __init
> +is_watchdog_thresh_setup(char *str)
> +{
> + get_option(&str, &watchdog_thresh);
> + return 1;
> +}
> +__setup("watchdog_thresh=", is_watchdog_thresh_setup);
> +
> +
> #ifdef CONFIG_STRICT_KERNEL_RWX
> static void mark_readonly(void)
> {
>
--
~Randy
