Many of these types of issues end up being a BIOS bug which is fixed in a more recent BIOS version. Does this system have a recent BIOS? If not, updating it might allow the system to use p-states.
Another workaround is to disable Frequency Voltage Scaling in BIOS if there is an option for it. Regards, Bill >> Hi Pavel, >> >> Pavel Kovalenko wrote: >>> after initial load system "hungs" with this error (huge thread of >>> messages), can anybody help what this error means and how to solve >>> it? I've been googled, but can't find anything useful, it looks like >>> something with CPU power management: >>> http://src.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/uts/i86pc/os/cpupm/cpupm_mach.c#564 >>> >>> >>> >> Yes, it is CPUPM related...basically, that there is a form of ACPI >> P-state coordination that the kernel doesn't recognize. In the >> message that is being printed out, what is the value for the >> coordination type? >