Hello, I've done some more digging into this P4-M speedstep annoyance, which I thought I'd share.
I set debug_est=1 in powernow.c and noticed that the driver fails in probe_speedstep() - after checking that CPUID_INTC_ECX_EST is set. I added some extra debugging stuff to log the contents of ebx, ecx and edx, after the cpuid instruction: Jun 30 14:03:48 bond powernow: [ID 609985 kern.notice] NOTICE: cpuid ebx=0x1080e Jun 30 14:03:48 bond powernow: [ID 610113 kern.notice] NOTICE: cpuid ecx=0x4400 Jun 30 14:03:48 bond powernow: [ID 610241 kern.notice] NOTICE: cpuid edx=0xbfebf9ff So this P4-M seems to lack the 'est' flag, despite having Enhanced SpeedStep enabled (according to the BIOS, at least). Curious. Justin. This message posted from opensolaris.org
