[sudo-access] front door computer randomly turns itself off

Jake jake at spaz.org
Wed May 3 22:38:31 PDT 2017


this has happened in the past and a couple of times this week, i think, that
the computer that handles the front door magnetic stripe reader shuts itself
off for some reason.

it's a beaglebone black and there is no reason it should shut off.  there are
no logs as to why because we generally run it in read-only mode on the main
disk, and logs are kept on a RAM disk.

here's someone else talking about the same issue:
http://falconchristmas.com/forum/index.php?topic=5547.0

when it's off, it has power but there are no lights on.  pressing the power
button turns it on.  wtf?

i could make a watchdog circuit that power-cycles it if this happens, but i
don't think that's really the right solution.  does someone want to take this
on and figure out wtf is going on?

probably using a USB stick for system logs would be a good start, and maybe
some increased level of logging.

-jake


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