[tech] Door Broken
Nick Bannon
nick at ucc.gu.uwa.edu.au
Wed Jul 22 18:28:23 WST 2009
On Wed, Jul 22, 2009 at 10:22:53AM +0800, Daniel J. Axtens wrote:
> Hi All,
>
> Door isn't unlocking. Specifically, the mechanism isn't responding to
> unlock commands.
Fixed! Thanks [DJA], [RVS], [CJS] and [TRS] for narrowing down the culprit.
> - The lock is not hot.
> - I don't have access to the machine room, so I'm unable to
> powercycle the modem; don't know if that would help.
The door solenoid is run through the modem;
* which has a serial cable to centipede, the DecServer 200/MC;
* which MOP boots off madako and can be talked to by mermaid or mussel;
* mermaid the coke-server runs [DAG]'s special /usr/sbin/opendoor;
* which connects to centipede and tells the modem to ATH1, then ATH0.
mermaid's latd had gotten non-responsive. (mussel's was fine and could
control the modem) [TRS] kill -9'ed and restarted it, then all was good.
If the door solenoid had been hot, that would mean the modem is stuck
on and has not successfully been told to ATH0. (so powercycling would
help turn it off at least)
Nick.
--
Nick Bannon | "I made this letter longer than usual because
nick-sig at rcpt.to | I lack the time to make it shorter." - Pascal
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