Hello, My apologies if this is the incorrect list.
I am having trouble getting deep C-States beyond C1 working on OpenSolaris nv_111b (2009.06 release). I am running an Intel Core 2 dual-core E5200 with a Supermicro X7SBL-LN2 motherboard that supports C1E and deep C-states in the BIOS. This shows up in var/adm/messages: > Jun 29 12:16:05 databank unix: [ID 950921 kern.info] cpu0: x86 (chipid 0x0 > GenuineIntel 1067A family 6 model 23 step 10 clock 2500 MHz) > Jun 29 12:16:05 databank unix: [ID 950921 kern.info] cpu0: Pentium(r) > Dual-Core CPU E5200 @ 2.50GHz > Jun 29 12:16:05 databank unix: [ID 950921 kern.info] cpu1: x86 (chipid 0x0 > GenuineIntel 1067A family 6 model 23 step 10 clock 2500 MHz) > Jun 29 12:16:05 databank unix: [ID 950921 kern.info] cpu1: Pentium(r) > Dual-Core CPU E5200 @ 2.50GHz > Jun 29 12:16:05 databank acpica: [ID 423971 kern.notice] ACPI: SSDT @ > 0xbfe740cb/0x0234 (v 1 PmRef Cpu1Ist 0x00003000 INTL 0x20050228) > Jun 29 12:16:05 databank acpica: [ID 395089 kern.notice] ACPI: SSDT @ > 0xbfe73a85/0x0085 (v 1 PmRef Cpu1Cst 0x00003000 INTL 0x20050228) > Jun 29 12:16:05 databank unix: [ID 395387 kern.info] NOTICE: cpu_acpi: > _CST invalid count 1 < 2 > Jun 29 12:16:05 databank unix: [ID 518192 kern.warning] WARNING: cpu_acpi: > error parsing _CST for CPU 1 > Jun 29 12:16:05 databank unix: [ID 726263 kern.info] NOTICE: > cpu_idle_init: Failed to cache ACPI C-state data > Jun 29 12:16:05 databank unix: [ID 763091 kern.warning] WARNING: > cpupm_init: processor 1: unable to initialize C-state support > The same occurs for CPU 0 but earlier in the log. There also appears to be something strange going on with the p-states as well: > $ kstat -m cpu_info -s current_clock_Hz > module: cpu_info instance: 0 > name: cpu_info0 class: misc > current_clock_Hz 2500000000 > > module: cpu_info instance: 1 > name: cpu_info1 class: misc > current_clock_Hz 2500000000 > As you can see, the current_clock_Hz is reported by kstat as 2.5GHz, but in powertop it is reported differently: > Cn Avg residency P-states (frequencies) > C0 (cpu running) (3.2%) 1200 Mhz 100.0% > C1 2.4ms (96.8%) 1600 Mhz 0.0% > 2000 Mhz 0.0% > 2400 Mhz 0.0% > 2500 Mhz 0.0% > Powertop says the processor is running at 1.2GHz not 2.5GHz, and of course no deep c-states. I am unsure as why they are reporting differently. This is my current power.conf: > autopm enable > autoS3 default > cpu-threshold 1s > # Auto-Shutdown Idle(min) Start/Finish(hh:mm) Behavior > autoshutdown 30 9:00 9:00 noshutdown > cpupm enable > cpu_deep_idle enable > > device-thresholds /pci at 0,0/pci15d9,d880 at 1f,2/disk at 0,0 45m > device-thresholds /pci at 0,0/pci15d9,d880 at 1f,2/disk at 1,0 45m > device-thresholds /pci at 0,0/pci15d9,d880 at 1f,2/disk at 2,0 45m > I would appreciate any insights anyone may have. I looked to see if this has been a reported bug and if there is a fix but have not found anything. I am new enough to OpenSolaris that I still have not found out where the changelogs are for the packages in the dev repository either, so I am unsure if there are patches to the C-state initialization for other bugs that may fix this. Cheers, John -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.opensolaris.org/pipermail/tesla-dev/attachments/20090629/7d9fbbe0/attachment.html>
