[Gllug] Clock running at double speed!

[John Winters]

I've just been struggling with an odd problem on an old computer. 
(Sorry - I keep recycling these things for worthy causes.)

The computer as a whole seems to work fine, but the clock drifts at an 
astonishing rate.  It's running Debian Sarge, with a 2.6.18 kernel and 
if I clock-watch on the desktop the clock seems to run at exactly twice 
the correct rate.  That is, every second it updates but the time 
increases by 2 seconds, like this:

17:05:02
17:05:04
17:05:06

etc.

I've got ntp installed and running, but it never seems to manage to 
synchronize with any of the servers.  On my normal boxes I get:

Jan 20 13:15:49 knight ntpd[3136]: Listening on interface eth0, 
10.3.0.55#123 Enabled
Jan 20 13:15:49 knight ntpd[3136]: kernel time sync status 0040
Jan 20 13:15:49 knight ntpd[3136]: frequency initialized -93.524 PPM 
from /var/lib/ntp/ntp.drift
Jan 20 13:15:55 knight ntpd[3136]: synchronized to 62.206.253.10, stratum 1
Jan 20 13:15:55 knight ntpd[3136]: time reset -0.786883 s

but on this box we get only as far as the third message "frequency 
initialized..."  It never issues a "synchronized" message.

It's on a BT Internet connection.  They don't block ntp do they?

TIA,
John
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