Re: [PATCH] lib/Kconfig.debug: document panic= command line option for PANIC_TIMEOUT

From: Javier Martinez Canillas
Date: Wed Jun 05 2024 - 14:12:21 EST


Brian Masney <bmasney@xxxxxxxxxx> writes:

Hello Brian,

> PANIC_TIMEOUT can also be controlled with the panic= kernel command line
> option, so let's reference it in the Kconfig help. This option is already
> documented in kernel-parameters.txt.
>
> Signed-off-by: Brian Masney <bmasney@xxxxxxxxxx>
> ---
> lib/Kconfig.debug | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
> index 59b6765d86b8..a6eb7425b888 100644
> --- a/lib/Kconfig.debug
> +++ b/lib/Kconfig.debug
> @@ -1043,7 +1043,8 @@ config PANIC_TIMEOUT
> Set the timeout value (in seconds) until a reboot occurs when
> the kernel panics. If n = 0, then we wait forever. A timeout
> value n > 0 will wait n seconds before rebooting, while a timeout
> - value n < 0 will reboot immediately.
> + value n < 0 will reboot immediately. The kernel command line
> + option panic= may be used to override this option.
>

Thanks for adding this, I wasn't aware of that panic= cmdline before.

Maybe it could also be mentioned that the timeout can be overriden by
user-space using the /proc/sys/kernel/panic sysfs entry too ?

Regardless, the patch looks good to me.

Reviewed-by: Javier Martinez Canillas <javierm@xxxxxxxxxx>

--
Best regards,

Javier Martinez Canillas
Core Platforms
Red Hat