vr0: watchdog timeout

[Tom Bowyer]

The machine in question has a VIA EPIA CL motherboard with the BIOS at 
the latest version:
http://www.viavpsd.com/product/epia_cl_spec.jsp?motherboardId=181

I originally installed 5.2.1-Release which worked without problem. I 
then cvsuped to current (at 12 June 22:13 BST) rebuilt world and a 
custom kernel
and started getting the error "vr0: watchdog timeout" on the console 
and there was no networking, by which I mean I could not ping anything. 
The card vr0 was still correctly listed in the output of ifconfig -a.
Placing hint.acpi.0.disabled="1" in /boot/loader.conf has got things 
working again so I assume it is some kind of ACPI problem.
I've put the debugging information suggested in the handbook at 
http://moose.org.uk/~tab/

Is there anything else I can try?

thanks,

Tom.