On Mon, Jul 23, 2012 at 5:41 AM, David Fetter <da...@fetter.org> wrote:
> On Mon, Jul 23, 2012 at 08:29:16AM -0400, Andrew Dunstan wrote:
>> I'm not sure how you automate testing a pull-the-plug scenario.
> I have a dim memory of how the FreeBSD project was alleged to have
> done it, namely by rigging a serial port (yes, it was that long ago)
> to the power supply of another machine and randomly cycling the power.

On Linux,

echo b > /proc/sysrq-trigger

Is supposed to take it down instantly, with no flushing of dirty buffers.



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