Ack
Sent from my iPhone
> On Dec 10, 2017, at 2:48 AM, Scott Wood <sw...@redhat.com> wrote:
>
> Commit ac1f591249d95372f ("kernel/watchdog.c: add sysctl knob
> hardlockup_panic") added the hardlockup_panic sysctl, but did not add it
> to Documentation/sysctl/kernel.txt. Add this, and reference it from the
> corresponding entry in Documentation/admin-guide/kernel-parameters.txt.
>
> Signed-off-by: Scott Wood <sw...@redhat.com>
> ---
> Documentation/admin-guide/kernel-parameters.txt | 3 +++
> Documentation/sysctl/kernel.txt | 14 ++++++++++++++
> 2 files changed, 17 insertions(+)
>
> diff --git a/Documentation/admin-guide/kernel-parameters.txt
> b/Documentation/admin-guide/kernel-parameters.txt
> index 6571fbfdb2a1..dfb7c35b5826 100644
> --- a/Documentation/admin-guide/kernel-parameters.txt
> +++ b/Documentation/admin-guide/kernel-parameters.txt
> @@ -2538,6 +2538,9 @@
> This is useful when you use a panic=... timeout and
> need the box quickly up again.
>
> + These settings can be accessed at runtime via
> + the nmi_watchdog and hardlockup_panic sysctls.
> +
> netpoll.carrier_timeout=
> [NET] Specifies amount of time (in seconds) that
> netpoll should wait for a carrier. By default netpoll
> diff --git a/Documentation/sysctl/kernel.txt b/Documentation/sysctl/kernel.txt
> index 694968c7523c..63663039acb7 100644
> --- a/Documentation/sysctl/kernel.txt
> +++ b/Documentation/sysctl/kernel.txt
> @@ -34,6 +34,7 @@ show up in /proc/sys/kernel:
> - hostname
> - hotplug
> - hardlockup_all_cpu_backtrace
> +- hardlockup_panic
> - hung_task_panic
> - hung_task_check_count
> - hung_task_timeout_secs
> @@ -313,6 +314,19 @@ will be initiated.
> 1: on detection capture more debug information.
> ==============================================================
>
> +hardlockup_panic:
> +
> +This parameter can be used to control whether the kernel panics
> +when a hard lockup is detected.
> +
> + 0 - don't panic on hard lockup
> + 1 - panic on hard lockup
> +
> +See Documentation/lockup-watchdogs.txt for more information. This can
> +also be set using the nmi_watchdog kernel parameter.
> +
> +==============================================================
> +
> hotplug:
>
> Path for the hotplug policy agent.
> --
> 2.9.5
>
