Unknown HZ value! (82) Assume 100.

GoogleGroups
1

Hello,

with the current oe kernel (2.8.28-omap1) I get above message at the
end of the boot process. What could be the reasen (beside that the HZ
value is unknown).

Robert

2

Robert Kuhn <rowkajjh@googlemail.com> writes:

Hello,

with the current oe kernel (2.8.28-omap1) I get above message at the
end of the boot process. What could be the reasen (beside that the HZ
value is unknown).

I've been getting that message occasionally since I started working on
the Beagle board in June, so it's not caused by a recent kernel change.

3

with the current oe kernel (2.8.28-omap1) I get above message at the
end of the boot process. What could be the reasen (beside that the HZ
value is unknown).

I've been getting that message occasionally since I started working on
the Beagle board in June, so it's not caused by a recent kernel change.

Okay, maybe.

Robert

4

It's related to dyntick, where you don't wake up HZ time per second put sleep a bit longer when there's not much stuff to do. so in you case it means that your CPU woke up 82 times per second while the app assumes that you only wake up 100/250/1000 times per second.
Summary: harmless message

regards,

Koen