On Tue, 3 Nov 1998, Chris Albertson wrote:
:>When I try running xntpd and an RT task I just get a big hard crash.
:>I am not using the latest RTL patch so this may be fixed.
:>
:>Has anyone gotten xntpd to work at all with RTL?
:>
:>Micheal Colhoun wrote (with edits):
:>
:>> Is there a problem using rt-linux periodic funcions with xntpd running ?
:>> Let me explain the scenario:
:>>
:>> 1. Assume the PC clock is set so that it is exactly one second behind UTC
:>>
:>> 2. Start a rt periodic task to pulse an I/O port bit high ever 10 seconds
:>> on a 10 second boundary (i.e. at 0,10,20,30,40,50 seconds past the
:>> minute )
:>> - remember the PC clock is 1 second out
:>
:>You don't say how you are checking the system time. Do you really need
:>RTL to run a task at 0.1Hz?
I am actually using rdate to get the time from an time server, running it
hourly, since the hardware clock is off horribly within a few hours.
It seems working fine, I never noticed any strange things happening, even when
several RT-Linux tasks where running ( 100Hz, 1 kHz, ... ).
This mail just makes me wondering whether it is a good idea to set the clock
while running RTL tasks ?
Greetings,
Jochen
-----------------------------------------------------------------------
Jochen Kuepper
Heinrich-Heine-Universitaet Duesseldorf [EMAIL PROTECTED]
Institut fuer Physikalische Chemie I
Universitaetsstrasse 26.43.02.29 phone ++49-211-8113681
40225 Duesseldorf fax ++49-211-8115195
Germany
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