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Date:      Wed, 04 Dec 2013 07:42:24 -0600
From:      Mark Felder <feld@FreeBSD.org>
To:        freebsd-current@freebsd.org
Subject:   Re: making PANIC_REBOOT_WAIT_TIME a tunable
Message-ID:  <1386164544.25171.55411873.4F5A7BD4@webmail.messagingengine.com>
In-Reply-To: <529C4446.6020508@freebsd.org>
References:  <529C4446.6020508@freebsd.org>

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On Mon, Dec 2, 2013, at 2:26, Colin Percival wrote:
> Hi all,
> 
> It seems that PANIC_REBOOT_WAIT_TIME has been a compile-time setting
> forever;
> and I can't see any reason for this, but I assume there was one... at
> some
> point in the distant past.
> 
> The attached patch makes it a loader tunable and sysctl.  My reason for
> wanting
> this is to make EC2 images reboot faster after a panic (not that it
> happens
> very often, of course) -- there's no point waiting for a key press at the
> console because the EC2 console is output-only.
> 
> Any objections?
> 

I tend to cheat this problem by using watchdog on my hardware servers.
This sounds quite convenient as I can't use watchdog in VMs...



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