linux-kernel - Re: [PATCH] lib/Kconfig.debug: fix BOOTPARAM_HUNG_TASK

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Message-ID: <be5f89f1-2092-491b-b46b-adae4a6eacc9@linux.dev>
Date: Tue, 6 Jan 2026 23:15:15 +0800
From: Lance Yang <lance.yang@...ux.dev>
To: Tomas Glozar <tglozar@...hat.com>
Cc: LKML <linux-kernel@...r.kernel.org>, Li RongQing <lirongqing@...du.com>,
 Johnny Mnemonic <jm@...hine-hall.org>,
 Andrew Morton <akpm@...ux-foundation.org>, Petr Mladek <pmladek@...e.com>,
 "Masami Hiramatsu (Google)" <mhiramat@...nel.org>
Subject: Re: [PATCH] lib/Kconfig.debug: fix BOOTPARAM_HUNG_TASK_PANIC comment



On 2026/1/6 22:01, Tomas Glozar wrote:
> The comment for CONFIG_BOOTPARAM_HUNG_TASK_PANIC says:
> 
>     Say N if unsure.
> 
> but since commit 9544f9e6947f ("hung_task: panic when there are more than N
> hung tasks at the same time"), N is not a valid value for the option,
> leading to a warning at build time:
> 
>     .config:11736:warning: symbol value 'n' invalid for BOOTPARAM_HUNG_TASK_PANIC
> 
> as well as an error when given to menuconfig.
> 
> Fix the comment to say '0' instead of 'N'.
> 
> Fixes: 9544f9e6947f ("hung_task: panic when there are more than N hung tasks at the same time")
> Reported-by: Johnny Mnemonic <jm@...hine-hall.org>
> Signed-off-by: Tomas Glozar <tglozar@...hat.com>
> ---

Thanks!

Reviewed-by: Lance Yang <lance.yang@...ux.dev>

>   lib/Kconfig.debug | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
> index ba36939fda79..cda3cf1fa302 100644
> --- a/lib/Kconfig.debug
> +++ b/lib/Kconfig.debug
> @@ -1273,7 +1273,7 @@ config BOOTPARAM_HUNG_TASK_PANIC
>   	  high-availability systems that have uptime guarantees and
>   	  where a hung tasks must be resolved ASAP.
>   
> -	  Say N if unsure.
> +	  Say 0 if unsure.
>   
>   config DETECT_HUNG_TASK_BLOCKER
>   	bool "Dump Hung Tasks Blocker"