linux-kernel - Re: [PATCH v4 0/2] Add stop_on

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Message-ID: <Z8gn-jxUH_7FT4b2@smile.fi.intel.com>
Date: Wed, 5 Mar 2025 12:31:22 +0200
From: Andy Shevchenko <andy@...nel.org>
To: George Cherian <george.cherian@...vell.com>
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Subject: Re: [PATCH v4 0/2] Add stop_on_panic support for watchdog

On Wed, Mar 05, 2025 at 10:10:23AM +0000, George Cherian wrote:
> This series adds a new kernel command line option to watchdog core to
> stop the watchdog on panic. This is useul in certain systems which prevents
> successful loading of kdump kernel due to watchdog reset.
> 
> Some of the watchdog drivers stop function could sleep. For such
> drivers the stop_on_panic is not valid as the notifier callback happens
> in atomic context. Introduce WDIOF_STOP_MAYSLEEP flag to watchdog_info
> options to indicate whether the stop function would sleep.

Should you only enable this if the kdump is enabled in the kernel configuration?

-- 
With Best Regards,
Andy Shevchenko