Re: [PATCH v2] doc: kernel-parameters.txt: fix documentation of nmi_watchdog parameter

From: Steven Rostedt
Date: Tue May 14 2019 - 15:22:58 EST


On Sun, 12 May 2019 11:35:27 +0800
Zhenzhong Duan <zhenzhong.duan@xxxxxxxxxx> wrote:

> The default behavior of hardlockup depends on the config of
> CONFIG_BOOTPARAM_HARDLOCKUP_PANIC.
>
> Fix the description of nmi_watchdog to make it clear.
>
> Signed-off-by: Zhenzhong Duan <zhenzhong.duan@xxxxxxxxxx>
> Reviewed-by: Joel Fernandes (Google) <joel@xxxxxxxxxxxxxxxxx>
> Cc: Steven Rostedt <rostedt@xxxxxxxxxxx>

Perhaps it should have been:

Suggested-by: Steven Rostedt (VMware) <rostedt@xxxxxxxxxxx>

As the wording is what I suggested ;-)

-- Steve

> ---
> v2: fix description using words suggested by Steven Rostedt
>
> Documentation/admin-guide/kernel-parameters.txt | 5 +++--
> 1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
> index 08df588..b9d4358 100644
> --- a/Documentation/admin-guide/kernel-parameters.txt
> +++ b/Documentation/admin-guide/kernel-parameters.txt
> @@ -2805,8 +2805,9 @@
> 0 - turn hardlockup detector in nmi_watchdog off
> 1 - turn hardlockup detector in nmi_watchdog on
> When panic is specified, panic when an NMI watchdog
> - timeout occurs (or 'nopanic' to override the opposite
> - default). To disable both hard and soft lockup detectors,
> + timeout occurs (or 'nopanic' to not panic on an NMI
> + watchdog, if CONFIG_BOOTPARAM_HARDLOCKUP_PANIC is set)
> + To disable both hard and soft lockup detectors,
> please see 'nowatchdog'.
> This is useful when you use a panic=... timeout and
> need the box quickly up again.