xruns at a period of 10 minutes

[hollunder at gmx.at]

Hi,
I get quite reliably a single xrun at a period of exactly 10 minutes,
and I haven't found the problem yet.
Since it's exactly 10 minutes I suspect that it is some system-thing,
but even deactivating anacron didn't help.
I somehow suspect that it is some network stuff, so if you happen to
know of a heavy network activity that happens at that interval, please
tell me.

I don't get the xrun completely reliable, but almost, and the period
didn't change, so it may be at xx.3, xx.13, xx.33, x.43,...
The jack settings are more on the lowlatency-side, about 8ms on my usb
device, and otherwise quite stable.
(/usr/bin/jackd -R -P70 -p128 -dalsa -r44100 -p128 -n3 -D -Chw:1 -Phw:1
-i2 -o2 -Xseq)

I wonder if other users experience something similar or have some ideas.

Thanks in advance,
	Philipp