From mboxrd@z Thu Jan  1 00:00:00 1970
From: Thornton Prime <thornton@yoyoweb.com>
Subject: Re: forcing a reboot
Date: Fri, 22 Oct 2004 06:08:22 -0700
Sender: linux-admin-owner@vger.kernel.org
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To: urgrue <urgrue@tumsan.fi>
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urgrue wrote:
> is there a way to force an instant reboot? in some cases "reboot" doesnt 
> work, as it seems to do many things before actually initiating a 
> phsyical reset, like shutting down processes. ive now run into the 
> situation a few times where zombie processes or module problems can 
> prevent "reboot" from completing its task.

For "extreme" rebooting, check out the kernel sysctl interface. You can send commands via keyboard, 
serial, or cat > /proc/sysctl. Command include forced reboot, killall, killall (minus init), dump, etc.

thornton