On Fri, Dec 29, 2006 at 10:15:58PM +0100, Mario. wrote:
> This problem is being solved by increasing the jitter tolerance from
> +-5% to +-10%, it will be in the next release of EMC.
>
> (see my ~20-mails long conversation on this topic in emc-developers)
>
> The message is only a warning, not a catastrophic error, no need to be
> scared...
Actually no, if you look closely at his error, you can see he
has a much larger deviation.
[ 193.318209] In recent history there were
[ 193.318211] 2412729, 2414583, 2413107, 2413341, and 2415294
[ 193.318213] elapsed clocks between calls to the motion controller.
[ 193.318216] This time, there were 3629106 which is so anomolously
[ 193.318218] large that it probably signifies a problem with your
[ 193.318220] realtime configuration. For the rest of this run of
[ 193.318222] EMC, this message will be suppressed.
At 2400 MHz, this overrun is something like 500 microseconds, which is
many BASE_PERIODs and therefore probably represents a real problem.
He should start troubleshooting with these hints:
http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?TroubleShooting
Chris
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