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SubjectRe: [PATCH] V2 init/main.c Enable watchdog_thresh control from kernel line
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On 10/24/18 8:53 AM, Laurence Oberman wrote:
> Both graphics and serial consoles 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@redhat.com>
> ---
> 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)
> {
>

Hi Laurence,

Let's make this into more of a complete patch.

a. update the diffstat to include the Documentation change

b. send the patch with the Documentation change as part of the same patch,
not as a separate patch (It looks like the multiple "---" lines in the
email are confusing.)

c. send the patch to someone who can merge it: scripts/get_maintainer.pl top
suggestions are:
Thomas Gleixner <tglx@linutronix.de> or Ingo Molnar <mingo@kernel.org>

thanks,
--
~Randy

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